DANA SPICER PACCAR 220ev User manual

ECTS-0300
October 2022
Models 220ev,K270e & K370e
DOC00015340
PACCAR®Electrified Chassis
Troubleshooting Guide

2
Safety Warnings
Safety Alerts and Warnings
Safety Alerts
Please read and follow all safety alerts in this guide. They are for your protection and information. The alerts can
also help you avoid injury to yourself and your passengers. The alerts can also help prevent costly damage to
the vehicle. Safety alerts are highlighted by safety alert symbols and signal words such as "Warning", "Caution",
or "Note.” Do not ignore any of these alerts.
Warning
The safety message following this symbol and word
provides a warning against operating procedures that could
cause serious injury or even death. Failure to follow these
warnings could also cause equipment or property damage.
The alert will identify a hazard, how to avoid it, and the
probable consequence of not avoiding the hazard.
Caution
The safety alert following this symbol and word provides a
caution against operating procedures that could cause
equipment or property damage. The alert will identify a
hazard, how to avoid it, and the probable consequence if
ignored.
Note
The alert following this symbol and word provides important
information that is not safety related but should be followed.
The alert will highlight things that may not be obvious and is
useful to your efficient operation of the vehicle.

3
Safety Warnings
Warnings and Safety Regulations
Warning: The following warning and safety
regulations must be strictly observed for
your safety, for bystanders’ safety, and to
prevent vehicle damage.
General Warning
Warning: This vehicle generates high
voltage that can cause an electric discharge
resulting in severe injury or death.
Training Requirements
Warning: All troubleshooting must be
performed by qualified technicians trained
in high voltage safety.
Technicians
must be fully aware of the
types of hazards involved in working with
electrical circuitry and familiar with standard
practices for preventing accidents.
The dealership is responsible for ensuring
that technicians are properly trained.
Warning: Vehicle systems must be
installed by qualified and authorized
personnel in accordance with applicable
vehicle standards and industry practices.
Personal Protective Equipment
Warning: Always use appropriate personal
protective equipment (PPE)
when working
with the vehicle systems,
even when the
system is disconnected from a high
voltage
source.
General High Voltage Warnings
Warning: Improper handling of high voltage
(HV) equipment can cause serious injury or
death.
Warning: Do not perform any
troubleshooting of HV equipment unless
specifically instructed by this
guide or by
Dana.
Warning: Wear appropriate personal
protective equipment (PPE) when working
with high voltage (HV) equipment.
Warning: The high voltage cables must be
shielded
and colored orange.
T
he high voltage and level of current
delivered by these systems can be lethal.
Failure to shield the high
-
voltage cables will
result in non
-compliance with EMI
regulatory requirements.
Warning: The systems use differential
mode capacitors between the positive high
-
voltage DC bus (+) and the negative high
-
voltage DC bus (
-) and common mode
capacitors between the high
-voltage DC
bus and the chassis. Even when the
product is disconnected from the high
-
voltage source, these capacitors can hold a
voltage high enough to cause an electric
discharge or death.
Electrical Equipment
Warning: Make sure the high voltage (HV)
and low voltage (LV) electrical supplies are
shut off when working with
electrical
components or wiring.
Warning: After disconnecting the electrical
supply, wait
5
minutes before proceeding to
allow time for capacitors to discharge.
HV Junction Box
Warning: Do not open the HV junction box
unless specifically instructed
by this guide
or by Dana.
Warning: Before performing any
troubleshooting of
the HV junction box,
make sure to follow the instructions of the
Operation and Maintenance Manual to
safely operate on this system. Failure to d
o
so may result in serious injury or death.
Pneumatic Equipment
Warning: Pneumatic equipment can cause
serious injury. Make sure
the system is
depressurized before performing
any
maintenance on the
air brake system or
other pneumatic components.

4
Safety Warnings
Modifications of the Vehicle
Modifying the vehicle could make it unsafe. Some
modifications could affect the vehicle's electrical
system, stability, or other important functions. For
no reason should the electric powertrain be
modified. Modification to any of Dana’s components
will void the warranty. Modifications to the electric
chassis could cause death or personal injury.
Warning: Connecting to an unapproved
CAN (Controller Area Network) bus may
trigger CAN fault codes. The manufacturer
will not warrant failures or damage caused
to the CAN bu
s components or vehicle
when the failure or damage due to improper
connections to the CAN bus or improper
messages.
Cooling System Filler Cap
Warning: Do not remove the radiator fill
cap while the powertrain is hot. Scalding
steam and fluid under
pressure may
escape. You could be badly burned. Failure
to comply may result in death or personal
injury.
Coolant
Caution: To prevent corrosion problems in
cooling systems, the
following
recommended best practices
should be
observed:
•
The coolant should consist of 60%
ethylene glycol, 40% de-ionized water
(not distilled water).
•
A minimum of 50% ethylene glycol is
required.
•
The ethylene glycol must contain some
type of active corrosion inhibitor.
•Do not mix different types of coolant.
Fire Extinguisher
Ensure that an approved fire extinguisher is within
the driver's reach and easily accessible for first
responders. Routinely check the fire extinguisher
according to its manufacturer’s instructions. If the
fire extinguisher has been used, it must be replaced
with a new fire extinguisher or refilled according to
the manufacturer’s instructions before the truck can
be returned to service.
Fire Instructions:
During a fire, certain plastic seals can produce
gases which with water form a corrosive acid. Do
not touch any fluid on the vehicle.
1. Contact firefighters.
Note: Do not attempt to put out a battery
pack fire with the provided fire extinguisher.
2. Create a safety perimeter of at least 6 feet
around the vehicle.
3. If it is possible, take the keys out of the ignition
and turn the 12V Disconnect to the “OFF” position.
Oils and Lubricants
Various kinds of oil and other lubricants used on the
vehicle may constitute a health hazard if they
contact the skin. This also applies to electric
powertrain coolant, refrigerant in air conditioning
systems, and battery acid. Do not contact vehicle
liquids without the appropriate personal protective
equipment.
Caution: The refrigerant lube used on this
truck is different from the typical
refrigerant
lube used for PACCAR vehicles. Failure to
use the correct refrigerant lube could result
in isolation failures.
Maintenance Activities
When carrying out maintenance work under the
cab, make sure the cab is fully tilted and locked to
prevent it from falling back accidentally.
Following a collision, only tilt the cab in an
emergency. The tilting mechanism may be
damaged, and a high voltage hazard might exist.
(The end stop may no longer be on the lifting
cylinder.)
Warning: Always support the vehicle with
appropriate safety stands if it is necessary
to work underneath the vehicle. A jack is
not adequate for this purpose.

5
Safety Warnings
Environment
Pollution is a serious threat to the environment. To
keep pollution to a minimum, follow the below rules:
•Do not dump used oil, lubricants, hydraulic fluid,
or coolants in drains, in sewers, in landfills or on
the ground. This is illegal. All used fluids must
be stored separately.
•Service the vehicle regularly according to the
instructions and recommendations in the
service manual. If component service intervals
are not provided in the service manual, check
the truck manufacturer’s operator’s manual.
High Voltage (HV) System
Warning: Do not disassemble, remove, or
replace
any high voltage compo
nent, cable,
or connector
unless specifically instructed
by this
guide. All high voltage cables are
colored orange for easy identification.
Warning: The high voltage batteries are not
serviceable and should NEVER be opened
.
Only the MSDs and HV cable connections
should be accessed according to repair and
safety procedures.
Note: If a collision occurs, remove the keys
from the ignition (if they are safely
accessible) and do not touch any high
voltage cables, connectors, or components.
Note: In the unlikely event of a fire,
immediately contact your local fire
emergency responders.
Welding
Caution: Frame rails are heat-treated and
should not be welded. Electrical
components nearby welding could also be
damaged. Dana’s warranty does not cover
damage to components caused by any type
of welding.
Warning: Prior to performing any
maintenance on the electric vehicle, always
perform the HV voltage shutdown
procedure.
Low Voltage (LV) System
The cab system of this vehicle operates on 24V
while other areas operate on 12V. When replacing
or fitting electrical or electronic components, always
verify that they are suitable for the system voltage.
LV Batteries
Warning: Always disconnect the battery
negative (ground) lead before carrying out
repairs or service on the electrical system.
Warning: Before attempting any work on
the batteries or electrical system, remove all
jewelry. If metal jewelry or other metal
contacts with
electrical circuits, a short
circuit may occur, causing personal
injury
and causing electrical system failure and
damage.
Jump-Starting Introduction
Jump-starting a vehicle is not a recommended
practice due to the various LV battery installations
and electrical options. However, if your LV battery is
discharged (dead), you may be able to start it by
using energy from a good LV battery in another
vehicle. This is termed jump-starting. Be sure to
follow the precautions and instructions below.
LV Charging Reminders
•Use protective eyewear.
•Keep all batteries away from children.
•Never reverse LV battery poles.
•Never attempt to place the vehicle in motion
with LV batteries disconnected.
•Keep the LV battery clean and dry.
•Look for any signs of damage. Replace
damaged 12V batteries according to the battery
manufacturer’s guidelines.
•Do not coat LV battery terminals with an
improper grease. Use petroleum jelly or
commercially available, noncorrosive,
nonconducting terminal coatings.
•Refer to the LV system charging and jump
starting instructions for proper procedure.
•It is preferred that 24V be provided across the 2
LV batteries. If only 12V source is available,
the connection must be across the second LV
battery so that the equalizer can distribute
power to the first LV battery.
Warning: Thaw frozen LV batteries at room
temperature before charging them. Remove
all the filler caps before charging.

6
Safety Warnings
Warning: Charger cables must be
connected positive to positive (+ to +) and
negative to
negative (- to -). If connected
improperly, LV batteries could explode.
Failure to comply may result in personal
injury, death, equipment, or property
damage.
Warning: Always ensure the LV battery
charger is OFF before connecting or
disconnecting the c
able clamps. To reduce
the danger of explosions and resulting
death or personal injury, do not connect or
disconnect charger cables while the charger
is operating.
Warning: Never use a fast charger as a
booster to start the system. This can
seriously
damage sensitive electronic
components such as relays, radio, as well
as the LV battery charger. Fast charging a
LV battery is dangerous and should only be
attempted by a competent mechanic with
the proper equipment.
Warning: LV batteries contain acid that can
burn and gasses that can explode. Ignoring
safety procedures may result in death,
personal injury, equipment, or property
damage.
Warning: Never remove or tamper with LV
battery caps. Ignoring this could allow LV
battery acid to c
ontact the eyes, skin,
fabrics, or painted surfaces. Failure to
comply may result in death, personal injury,
equipment, or property damage. Be careful
that metal tools (or any metal in contact with
the positive terminal) do not contact the
positive battery
terminal and any other
metal on the vehicle at the same time.
Remove metal jewelry and avoid leaning
over the LV battery.
Caution: Using higher voltage booster for
the LV batteries will cause expensive
damage to sensitive electronic components
such as relays, sensors, and control units.
Always charge the LV batteries at the
proper voltage. Failure to comply may result
in equipment damage.
Caution: Do not modify or improperly repair
the vehicle’s electrical system or electric
powertrain. All electrical repairs should be
performed by an authorized dealer.
Improper repair or modifications will void
the warranty and/or cause serious d
amage
to your vehicle.
Additional Information
Note: Review the warranty policy before
performing any maintenance procedures.
An extended warranty may be voided if
unauthorized maintenance is performed
during this period.
Note: The description and specifications
contained in the service publication are
current at the time of printing.
Note: Dana reserves the right to
discontinue or modify its models and/or
procedures and to change specifications at
any time without notice.
Note: Always use genuine Dana
replacement parts.
Note: Every effort has been made to
en
s
ure the accuracy of all information in this
guide.
However, Dana Commercial Vehicle
Systems Division makes no express or
implied warranty or representation based on
the enclosed information.
Any errors or omissions may be reported to:
Dana
Commercial Vehicle Systems
3939 Technology Drive
Maumee, OH 43537

7
Table of Contents
Safety Alerts and Warnings ................... 2
Safety Alerts ....................................................2
Warnings and Safety Regulations................... 3
Error Code Index..................................... 8
General Information.............................. 12
PACCAR vehicle ........................................... 12
Key Features .................................................12
Vehicle System Overview ............................. 13
Diagnostics ........................................... 14
Fault Codes ...................................................14
Fault Reasons ...............................................14
Fault Log .......................................................14
Operational Data ........................................... 14
Multimeter ..................................................... 15
Troubleshooting Tips.....................................16
Troubleshooting ................................... 17
How to Use This Guide .................................17
ESS ...............................................................19
Charging System .........................................161
Propulsion System ......................................270
Brake System ..............................................325
DCDC System .............................................417
Low Voltage Distribution System.................465
Power Steering System ...............................480
HVAC System..............................................522
VCU-HMI System ........................................602
Powertrain cooling system ..........................671
Telemetry System........................................690
ePTO System ..............................................700
Troubleshooting Subtrees ...........................715
Appendix 1: Terminology ...................759

8
Error Code Index
Error Code Index
A/C Compressor no contact ................................591
Air Brake Compressor no contact........................406
Air Dryer No Contact ...........................................411
Analog HVIL investigation ...................................716
BMS no contact ...................................................150
Cabin Heater no contact ......................................596
CAN investigation ................................................725
Charge controller no contact ...............................262
Connector investigation .......................................743
Cooling system investigation ...............................746
DCDC no contact.................................................457
ePTO no contact..................................................710
F0000
Fault Reason 0x02faff ......................................326
Fault Reason 0x05faff ......................................327
Fault Reason 0x07faff ......................................328
Fault Reason 0x08faff ......................................329
Fault Reason 0x0afae0, 0x0afaf0 ....................330
Fault Reason 0x233302...................................331
Fault Reason 0x233608, 0x233708, 0x233808
......................................................................333
Fault Reason 0x233B0A ..................................334
Fault Reason 0x234101...................................335
Fault Reason 0x234606, 0x234705 .................336
Fault Reason 0xa1f8ec ....................................337
Fault Reason 0xa3f8ec ....................................338
Fault Reason 0xa4f8f2.....................................339
Fault Reason 0xa4f8ff ......................................341
Fault Reason 0xa5f8f0.....................................342
Fault Reason 0xa6f8f0.....................................344
Fault Reason 0xa7f8ec ....................................346
Fault Reason 0xcef9f0, 0xd1f9ef .....................348
Fault Reason 0xd5f9f0, 0xd6f9e1 ....................350
Fault Reason 0xd9f9e2....................................352
Fault Reason 0xdaf9e2....................................354
Fault Reason 0xdcf9f0, 0xddf9f0, 0xdef9f0 .....348
Fault Reason 0xfef9ff .......................................356
F0001...................................................................357
F0002
Fault Reason 0x00faff ......................................358
Fault Reason 0x01faff ......................................359
Fault Reason 0x03faff ......................................360
Fault Reason 0x04f9e2....................................361
Fault Reason 0x04faff ......................................363
Fault Reason 0x06faff ......................................364
Fault Reason 0x09faff ......................................365
Fault Reason 0x232802...................................366
Fault Reason 0x232B01 ..................................369
Fault Reason 0x232C01 ..................................370
Fault Reason 0x232D09, 0x232E09 ................371
Fault Reason 0x232F01, 0x233001.................372
Fault Reason 0x234209...................................374
Fault Reason 0x234309, 0x234409, 0x234509
......................................................................375
Fault Reason 0x23480A, 0x234907................ 378
Fault Reason 0x3cf8e3 ................................... 379
Fault Reason 0x3df8ff ..................................... 380
Fault Reason 0x4ff8e4 .................................... 381
Fault Reason 0x74f7ec, 0x75f7ed .................. 386
Fault Reason 0xa1f8e2 ................................... 387
Fault Reason 0xa2f8ec ................................... 390
Fault Reason 0xa5f8e0 ................................... 391
Fault Reason 0xa6f8e0 ................................... 392
Fault Reason 0xd0f9e4 ................................... 393
Fault Reason 0xd3f9e4 ................................... 396
Fault Reason 0xd4f9e2 ................................... 399
Fault Reason 0xe2f9e4 ................................... 400
Fault Reason 0xe3f9e4 ................................... 401
Fault Reason 0xe4f9e4 ................................... 402
F0003.................................................................. 162
F0004.................................................................. 163
F0005, F0006, F0007
Charge end reason 1 ...................................... 164
Charge end reason 2 ...................................... 166
Charge end reason 3 ...................................... 168
Charge end reason 4 ...................................... 170
Charge end reason 5 ...................................... 172
Charge end reason 6 ...................................... 174
Charge end reason 7 ...................................... 175
Charge end reason 8 ...................................... 177
Charge end reason 9 ...................................... 179
Charge end reason 10 .................................... 181
Charge end reason 11 .................................... 183
Charge end reason 12 .................................... 185
Charge end reason 13 .................................... 187
Charge end reason 14 .................................... 189
Charge end reason 15 .................................... 191
Charge end reason 16 .................................... 194
Charge end reason 17 .................................... 196
Charge end reason 18 .................................... 199
Charge end reason 19 .................................... 202
Charge end reason 20 .................................... 205
Charge end reason 21 .................................... 208
Charge end reason 22 .................................... 211
Charge end reason 23 .................................... 213
Charge end reason 24 .................................... 215
Charge end reason 25 .................................... 217
Charge end reason 26 .................................... 219
Charge end reason 27 .................................... 221
Charge end reason 28 .................................... 223
Charge end reason 29 .................................... 224
Charge end reason 30 .................................... 226
Charge end reason 31 .................................... 228
Charge end reason 32 .................................... 230
Charge end reason 33 .................................... 232
Charge end reason 34 .................................... 234
Charge end reason 35 .................................... 236
Charge end reason 36 .................................... 238

9
Error Code Index
F0008
Fault Reason 1.................................................418
Fault Reason 2.................................................422
Fault Reason 3.................................................423
Fault Reason 4.................................................426
Fault Reason 5.................................................427
Fault Reason 6.................................................429
Fault Reason 7.................................................430
Fault Reason 8.................................................431
Fault Reason 9.................................................432
Fault Reason 10...............................................433
Fault Reason 11...............................................434
Fault Reason 12...............................................435
Fault Reason 13...............................................436
Fault Reason 14...............................................437
Fault Reason 15...............................................441
Fault Reason 16...............................................446
F0009...................................................................451
F0010...................................................................481
F0012
Fault Reason 4301, 4302.................................498
Fault Reason 5001...........................................499
Fault Reason 5102...........................................500
Fault Reason 5201...........................................502
Fault Reason 5202...........................................504
Fault Reason 5401...........................................506
F0014
Fault Reason 0101...........................................482
Fault Reason 2403, 2404, 2405, 2406 ............483
Fault Reason 3602...........................................484
Fault Reason 3604...........................................486
Fault Reason 3610...........................................489
Fault Reason 3703, 3704.................................492
Fault Reason 3707...........................................486
Fault Reason 3802...........................................495
Fault Reason 5402...........................................509
F0015...................................................................701
F0016.....................................................................20
F0017.....................................................................26
F0018.....................................................................28
F0019
Fault Reason 1...................................................31
Fault Reason 4...................................................31
Fault Reason 10.................................................31
Fault Reason 13.................................................31
Fault Reason 32.................................................32
Fault Reason 34.................................................33
Fault Reason 48.................................................35
Fault Reason 49.................................................36
F0020
Fault Reason 2...................................................37
Fault Reason 5...................................................37
Fault Reason 11.................................................37
Fault Reason 14.................................................37
Fault Reason 19.................................................38
Fault Reason 21.................................................39
Fault Reason 22.................................................40
Fault Reason 23 ................................................ 41
Fault Reason 25 ................................................ 42
Fault Reason 27 ................................................ 43
Fault Reason 30 ................................................ 44
Fault Reason 47 ................................................ 48
Fault Reason 50 ................................................ 52
Fault Reason 51 ................................................ 53
F0022.................................................................... 55
F0023.................................................................... 56
F0024.................................................................... 57
F0025.................................................................... 58
F0026
Fault Reason 1, 2, 3.......................................... 59
Fault Reason 4, 5, 6.......................................... 61
Fault Reason 7 .................................................. 63
Fault Reason 8, 9, 10........................................ 64
Fault Reason 11, 12, 13 .................................... 67
Fault Reason 14, 15, 16 .................................... 69
Fault Reason 17 ................................................ 74
Fault Reason 18, 19, 20 .................................... 75
Fault Reason 22, 23, 24 .................................... 77
Fault Reason 25, 26, 27 .................................... 79
Fault Reason 28 ................................................ 80
Fault Reason 29 ................................................ 81
Fault Reason 30 ................................................ 82
Fault Reason 32, 33, 34 .................................... 84
Fault Reason 35 ................................................ 86
Fault Reason 36 ................................................ 89
Fault Reason 37 ................................................ 94
Fault Reason 38 ................................................ 95
Fault Reason 39 ................................................ 96
Fault Reason 40, 41, 42, 43.............................. 97
Fault Reason 44 ................................................ 99
Fault Reason 45 .............................................. 100
Fault Reason 46 .............................................. 101
Fault Reason 47 .............................................. 102
Fault Reason 48 .............................................. 105
Fault Reason 49–70 ........................................ 107
Fault Reason 71 .............................................. 108
Fault Reason 73 .............................................. 109
Fault Reason 74 .............................................. 110
Fault Reason 75, 76, 77 .................................. 111
Fault Reason 78 .............................................. 112
Fault Reason 100 ............................................ 113
Fault Reason 102, 103, 104............................ 115
F0027.................................................................. 116
F0028.................................................................. 117
F0029.................................................................. 118
F0030.................................................................. 119
F0032.................................................................. 120
F0033.................................................................. 121
F0034.................................................................. 122
F0035.................................................................. 123
F0036.................................................................. 124
F0037.................................................................. 125
F0038.................................................................. 126
F0039.................................................................. 127

10
Error Code Index
F0040...................................................................128
F0041...................................................................129
F0042...................................................................130
F0043...................................................................131
F0044...................................................................132
F0045...................................................................133
F0046...................................................................135
F0047...................................................................136
F0048...................................................................137
F0049...................................................................138
F0050...................................................................603
F0051...................................................................604
F0052...................................................................604
F0053
Fault Reason 1, 2.............................................523
Fault Reason 3.................................................524
Fault Reason 4, 5.............................................523
Fault Reason 6, 7.............................................526
Fault Reason 8.................................................523
F0054...................................................................527
F0055...................................................................535
F0057...................................................................605
F0058...................................................................606
F0059...................................................................672
F0060...................................................................677
F0061...................................................................614
F0062...................................................................614
F0063...................................................................616
F0064–F0079 ......................................................466
F0080–F0087 ......................................................474
F0088...................................................................240
F0092...................................................................618
F0095...................................................................619
F0097, F0098
Fault Reason 1.................................................271
Fault Reason 2.................................................273
Fault Reason 3.................................................277
Fault Reason 4.................................................280
Fault Reason 5.................................................283
Fault Reason 6.................................................284
Fault Reason 7.................................................286
Fault Reason 8.................................................290
Fault Reason 9.................................................293
Fault Reason 10...............................................296
Fault Reason 11...............................................297
F0099...................................................................299
F0100
Fault Reason 1.................................................310
Fault Reason 2.................................................311
Fault Reason 3.................................................315
Fault Reason 4.................................................317
F0102...................................................................318
F0103...................................................................320
F0104...................................................................321
F0105...................................................................536
F0107...................................................................139
F0108...................................................................627
F0109.................................................................. 683
F0110.................................................................. 684
F0111.................................................................. 550
F0119.................................................................. 140
F0129.................................................................. 143
F0130.................................................................. 628
F0131.................................................................. 260
F0132.................................................................. 512
F0133.................................................................. 551
F0134.................................................................. 552
F0135.................................................................. 553
F0136.................................................................. 554
F0137.................................................................. 631
F0139.................................................................. 707
F0140.................................................................. 403
F0141.................................................................. 562
F0142.................................................................. 565
F0143.................................................................. 570
F0144.................................................................. 452
F0145.................................................................. 633
F0146.................................................................. 145
F0147.................................................................. 635
F0148.................................................................. 641
F0149.................................................................. 642
F0150.................................................................. 643
F0151.................................................................. 644
F0152.................................................................. 645
F0153.................................................................. 147
F0154.................................................................. 148
F0155.................................................................. 149
F0156
Signal Validity Code 1, 2 ................................. 646
Signal Validity Code 12 ................................... 650
Signal Validity Code 13, 14, 15....................... 652
Signal Validity Code 16 ................................... 654
Signal Validity Code 17 ................................... 656
Signal Validity Code 18 ................................... 659
Signal Validity Code 19, 20, 21....................... 648
Signal Validity Code 22 ................................... 661
Signal Validity Code 23 ................................... 663
Signal Validity Code 24 ................................... 654
Signal Validity Code 25 ................................... 665
Signal Validity Code 26, 27, 28....................... 661
Signal Validity Code 29, 30 ............................. 667
Signal Validity Code 3, 4, 5, 6, 7, 8, 9, 10, 11, 03
..................................................................... 648
Signal Validity Code 31 ................................... 646
Signal Validity Code 32, 33 ............................. 654
Signal Validity Code 34, 35, 36....................... 661
Signal Validity Code 37, 38, 39....................... 654
Signal Validity Code 40 ................................... 665
Signal Validity Code 41 ................................... 656
Signal Validity Code 42, 43, 44, 45, 46, 47, 48, 49
..................................................................... 648
Signal Validity Code 50 ................................... 652
F0158.................................................................. 571
Heating circuit investigation ................................ 748

11
Error Code Index
OBC no contact ...................................................266
Override currently active......................................669
Power Steering no contact ..................................513
Powertrain cooling pump No contact...................685
Radiator Fan 01 no contact .................................576
Radiator Fan 02 no contact .................................583
Relay investigation.............................................. 756
Supervisory Controller no contact....................... 670
Telemetry No Contact OR Fleet owner is receiving
empty telemetry data files ............................... 691
Traction Inverter no contact ................................ 324

12
General Information
General Information
PACCAR vehicle
The PACCAR vehicle is driven by an electric
powertrain. High voltage batteries supply all onboard
systems.
Various electrical systems are installed on the
vehicle. These systems are interconnected by
means of low voltage (LV) and high voltage (HV)
electrical networks, CAN buses, and hydraulic,
pneumatic, and coolant piping.
The vehicle produces its own hydraulic and
pneumatic energy onboard as needed.
Key Features
The vehicle systems include diagnostic capabilities
to help identify and solve problems:
•Diagnostics
•Operational data
Diagnostics
The Vehicle Control Unit (VCU) provides self-
diagnosis during operation. If the system detects a
problem, it will display an error message on the
Human-Machine Interface (HMI) to notify the driver.
These error messages are the primary information
source to troubleshoot function losses on the
vehicle.
Operational Data
The HMI is also able to display a variety of key
operating parameters for vehicle systems and
components such as voltage, temperature, and
power usage. These data can provide useful
information for troubleshooting.

13
General Information
Vehicle System Overview
This section provides a brief overview of the main
systems on the vehicle. More detailed information is
provided in the specific section for each system,
which can be found on the page indicated.
Additional information is also available in the vehicle
service manual.
ESS … page 19
The Energy Storage System (ESS) is the vehicle
battery pack. It includes the Battery Management
System (BMS) and heating and cooling circuits to
help maintain the proper operating temperature in
cold weather.
Charging System …page 161
The charging system converts electrical energy input
to charge the ESS. It can accept either alternating
current (AC) or direct current (DC) input. The
vehicle is charged using a charger that is attached to
the electrical power grid. The charger is referred to
in this manual as an EVSE (Electric Vehicle Supply
Equipment).
Propulsion System … page 270
The propulsion system converts electrical energy
from the ESS into mechanical energy to propel the
truck. It consists of an electric motor and a Traction
inverter. The propulsion system is available in two
configurations medium duty and heavy duty.
Brake System … page 325
The brake system is responsible for stopping the
vehicle. The brakes are operated by compressed air
supplied by an onboard compressor.
DCDC System … page 417
The DCDC system accepts high voltage (HV) input
from the ESS and converts it to 24V low voltage (LV)
to charge the two LV batteries, which power the 12V
and 24V equipment throughout the vehicle.
Low Voltage Distribution System … page 465
The low voltage distribution system distributes 12V
and 24V power throughout the vehicle to power
onboard equipment and accessories.
Power Steering System … page 480
The power steering system is an electro-hydraulic
system which produces supplemental steering force
to assist the driver in steering the vehicle.
HVAC System … page 522
The Heating, Ventilation and Air Conditioning
(HVAC) system provides heating, cooling, and
ventilation to the driver cab.
VCU-HMI System … page 602
The Vehicle Control Unit (VCU) is the main
processing unit which monitors and controls most of
the systems and equipment on the vehicle. It
interfaces with other equipment either through the
CAN network or by means of dedicated low-voltage
signals. The Human-Machine Interface (HMI)
provides a communication interface between the
VCU and the driver.
Powertrain Cooling System … page 671
The cooling system helps to maintain the proper
operating temperature for the equipment connected
to the cooling circuit. It consists of a cooling loop,
radiator, pump, and fans.
Telemetry System … page 690
The telemetry system collects and transmits
operational data from the various vehicle systems to
remote servers where they can be accessed by
operators for monitoring purposes.
ePTO System … page 700
The electric power take-off (ePTO) system provides
an electrical power output which can be used to
operate aftermarket onboard accessories.
PINOVO+
Is a separate vehicle controller that comprises two
major function. That of the supervisory controller,
(FSVCU) where its function is to monitor vehicle
systems on CAN-A, CAN-B, CAN-C, and CAN-D.
Should the selected devices perform an unsafe
function the supervisory controller provides a safe
shutdown sequence. The PINOVO+ also functions
as a charge controller, managing the charging
process when the vehicle is connected to an EVSE.

14
Diagnostics
Diagnostics
Fault Codes
The HMI provides various error messages which are
the primary means of identifying and troubleshooting
problems on the vehicle.
Error messages on the HMI are in the format
Fxxxx - Error message text.
Each message includes a diagnostic error code
which is numbered between F0000 and F9999.
Additionally, the HMI provides a short text
description to help the technician understand the
nature of the problem.
Fault Reasons
When variety of related errors are grouped under the
same error code the HMI will provide an additional
fault reason code which gives more information
about the specific cause of the error. The fault
reason appears on the error message under the
main error code:
Fxxxx - Error message text.
Fault Reason 0
The exact text and format of the fault reason
message varies by subsystem.
Fault Log
Multiple error messages may be raised at once.
Some error messages are latching and will remain
displayed on the HMI until the vehicle is reset by
turning the ignition off and on. Some latching faults
may require a component service tool to reset the
fault. Other error messages will be cleared as soon
as the underlying fault is resolved.
The HMI provides an error log which lists all errors
raised in chronological order. This can be useful
when multiple errors are raised at once or when
error messages have been cleared from the main
HMI display. Note that the Fault codes and reasons
on device faults are time stamped in the VCU fault
log.
The fault code trouble tree should be used for
troubleshooting faults displayed on the HMI or found
in the fault logs.
In the event a service (wrench) or stop (red) lamp is
illuminated on the main instrument cluster of the
truck, check the HMI touch screen to the right of the
steering wheel for any popup messages faults.
When no popup messages are visible, access the
fault log memory of the VCU using the HMI touch
screen. A fault summary of active DTCs and detailed
fault information for various subsystems may be
accessed by service personnel using the diagnostic
pages of the HMI.
Operational Data
The HMI also provides diagnostic screens which are
accessible to technicians. These screens display the
most important signals of each system, which can be
useful for troubleshooting.
An example of a diagnostic screen giving data about
the ESS is shown here:
This illustration is an example and might not
represent the exact display interface of the vehicle.
Refer to Dana's Diagnostic Guide for more
information on HMI screen operation and error code
retrieval.

15
Diagnostics
Multimeter
Based upon electrical schematics and aided by
component-specific error messages, a multimeter
can be used to check sensor and solenoid
resistances and to find wiring harness faults. The
multimeter can be used to check:
•Continuity
•Ground
•Broken wires
•Open circuits
•Short circuits
•Incorrect battery voltage

16
Diagnostics
Troubleshooting Tips
This checklist outlines some general hints and
guidelines that will be helpful in tracking down and
correcting operating problems.
Dealing with multiple errors
If multiple errors are raised at once, the
corresponding error messages will stack on the
HMI display with the highest priority message on
top.
It is recommended to photograph or otherwise
record each error message before clearing it from
the HMI. Then consult the fault log to determine
which of these errors was raised first and begin
troubleshooting by locating the entry for that error.
Going through the troubleshooting trees
It is recommended to follow the order of actions
suggested by the troubleshooting trees when
troubleshooting to ensure a systematic process.
Since systems interact with each other, specific
troubleshooting trees might refer to other trees,
therefore, it is always required to recheck the initial
troubleshooting tree after having switched to
another tree.
Systems not provided by Dana are not
covered in this guide
Systems that are not provided or selected by Dana
are not covered by this troubleshooting guide and
might require use of additional external
documentation.
Root causes outside the scope of this guide
This guide is meant to cover a dealership / garage
level of troubleshooting. Some root causes require
specialized troubleshooting or other support from
Dana. If the troubleshooting tree does not provide
a solution to troubleshoot or solve an issue, please
contact Dana for further investigation.
A cleared code alone does not indicate a
corrected problem
An error code is set by a specific fault condition
and may be cleared by switching the ignition off
and then on. It is possible to clear an error
message only to have it appear again when the
fault condition reoccurs. To make sure an issue is
fixed, be sure to run the system through the same
operating modes that caused the issue and verify
that the error code does not reappear.
Errors during charging
If an error was found after the vehicle has been
charging unattended, always consult the fault log to
find all errors raised during the charging session.
Disconnect the Vehicle Control Unit
connector with ignition off
To avoid setting electrical fault codes, make sure
that the ignition is switched off before
disconnecting the wire harness connection.
Connect the connector before switching on the
ignition.
Inspecting wiring for continuity failure
When inspecting LV, HV, or CAN wiring, continuity
failure includes visible defects like broken cables or
connector defects. If needed, further investigation
will be undertaken at the request of Dana experts.
If the problem can be traced to a continuity failure,
repair or replace the wiring or connectors
accordingly. During inspection of any system
wiring, also pay attention to the system grounding,
it may be a cause of the fault.
Intermittent faults
If an error appears intermittently or if the error
disappeared on the way to the dealership, gather
as much information as possible about the
circumstances in which the error appeared and
perform a test drive under similar circumstances to
see if the error reappears.
Faults that do not appear in the guide
If any fault appears which is not covered in this
guide, please contact Dana for further
investigation.

17
Diagnostics
Troubleshooting
How to Use This Guide
To troubleshoot an error, locate the error code in this
guide.
The error codes are grouped by system. If you are
not sure which system the error code belongs to,
consult the Error Code Index at the front of this
guide.
Each system section describes the main
components of the system. It is recommended to
familiarize yourself with this material before
beginning to troubleshoot.
Each error entry is formatted as shown below:
Error Code
Error Description Possible Causes Possible Solutions
Details the dysfunctional event that
occurs on the unit.
List of the possible root causes
that might be the source of the
dysfunctional event (determined
through the troubleshooting tree).
List of the possible solutions to
each possible cause (determined
through the troubleshooting tree).
This section contains any additional information that
is pertinent to troubleshooting the error. This material
is intended to provide context and insight to
accompany the troubleshooting tree. The
troubleshooting tree is the main diagnostic
procedure the technician should follow.
This section also includes:
•Diagrams of any connectors the technician may
need to disconnect during troubleshooting.
•Any relevant note, caution, or warning
messages.
Troubleshooting Tree
A step-by-step procedure to
guide the technician through the
troubleshooting process.

18
Troubleshooting
Troubleshooting Tree Legend
Within the troubleshooting trees, different shapes denote different types of actions:
Start & End Indicates the beginning or end of a troubleshooting
procedure.
Action Indicates a troubleshooting action to be performed
by the technician.
Decision Indicates a decision point between two paths in the
tree.
External
Reference
Refers the technician to an external troubleshooting
process. This can be either another tree within this
guide or an external document such as a supplier
manual.
Subtree
Reference
Refers the technician to a subtree within this guide.
Subtrees cover general procedures which may
apply to many different errors (i.e., troubleshooting
problems with connectors, relays, or the CAN
network). The subtree entries are at the end of the
guide starting on page 715. After completing the
subtree, the technician should return to the original
tree.
Split
For legibility, some branches of the tree may be split
off to be displayed on a later page. Split branches
are labeled alphabetically (A, B, C…). When a
branch terminates in (A), the technician should
locate the corresponding (A) indicator on a
subsequent page of the tree and continue
troubleshooting.

19
Troubleshooting
ESS
The Energy Storage System (ESS) is the vehicle
battery pack. It includes the Battery Management
System (BMS) and heating and cooling circuits to
help maintain the proper operating temperature in
cold weather.
Component descriptions
High Voltage Batteries
The high voltage batteries are available in three
configurations: 141 kWh, 209 kWh, and 282 kWh.
In the 141 kWh configuration, the ESS consists of
two battery packs designated Pack 1 and Pack 2. In
the 282 kWh configuration, the ESS consists of four
packs designated Pack 1 through Pack 4. Each
battery pack includes an internal heating circuit and
cooling loop. The layout of the 209 kWh option is not
yet defined.
S-Box
The S-Box is the interface between the ESS and the
other vehicle systems. It includes the Battery
Management System (BMS) which manages and
balances the charging and discharging of the
batteries.
ESS Cooling System
The ESS cooling system helps to maintain the
proper operating temperature in the ESS. It uses a
chiller and pump to circulate coolant through the
battery packs. It is one of three coolant loops on the
vehicle along with the cooling system and the heater.
Chiller
The chiller uses a refrigeration cycle to remove heat
from the ESS coolant circuit. It is powered by 24V
low voltage and communicates via the CAN network.
It also receives analog feedback from a coolant level
sensor in the coolant reservoir. The chiller includes
the Thermal Management System (TMS) which
manages the battery temperature.
Chiller Tank
The chiller tank is the reservoir for the ESS cooling
system. It has an internal sensor which reports the
fluid level to the chiller.
Cooling Circuit
The cooling circuit runs through each ESS battery
pack. For the 141 kWh ESS configuration, there is a
single cooling loop which runs through both battery
packs. For the 282 kWh configuration, there are two
parallel cooling loops which each run through two of
the four battery packs. The layout of the 209 kWh
option is not yet defined.
Warning: The high voltage batteries are
NOT serviceable and should NEVER be
opened
.Only the MSDs and HV cable
connections should be accessed according
to repair and safety procedures.

20
Troubleshooting
F0016 - High Voltage system fault, Vehicle set to neutral
Error Description Possible Causes Possible Solutions
The VCU has lost communication
with the BMS.
1)
Defective MPDM relay K1.
2)
Defective MPDM relay K6.
3)
Defective relay K007.
4)
Loss of continuity due to
defective LV connector or
harness.
5)
Cut loop broken or faulty cut
loop wiring.
6)
CAN communication problem.
7)
Shutdown requested by
powertrain safety system.
8)
Loss of power to MPDM or
MPDM internal failure.
9)
VCU internal failure.
1)
Replace MPDM relay K1.
2)
Replace MPDM relay K6
.
3)
Replace relay K007.
4)
Repair or replace LV
connector or harness.
5)
Repair or replace cut loop
wiring.
6)
Resolve
CAN communication
problem.
7)
Troubleshoot specific
error.
8)
Troubleshoot specific error.
9)
Replace VCU.
Connector C11 (black)
Connector C40
Connector C44
Connector C50