PERFECTPASS DWB Operating instructions

Tige 2006
Troubleshooting
(Electronic Throttle Engines)
The PerfectPass “Drive by Wire” (DBW) system for new electronic throttle
engines results in a simplified and enhanced version of PerfectPass. From the
drivers seat, PerfectPass operation is virtually identical to the present mechanical
systems. PerfectPass is now comprised of just three main parts:
1. DBW Master Control Module
2. DBW Plug & Play Engine Wiring Harness
(PCM)
3. In-Dash Display
Engine Display
Harness Harness
How it Operates:
The ECM of an electronic throttle engine allows an external device such as
PerfectPass to control the engine rpm using the throttle servo motor when all
control signals are valid and manual throttle lever position exceeds the rpm level
request of PerfectPass.
Just three individual wires in the PerfectPass DBW wiring harness connect the
speed control to the engine ECM.
1. The Request Line from PerfectPass requests the ECM to allow PerfectPass
to take control.
2. The Status Line from the ECM indicates PerfectPass now has control of the
engine. The Status Line is the signal that confirms engagement (beeper) and
system control.
3. The VGOV Line establishes the engine RPM level as set by PerfectPass.
Problems with PerfectPass should be rare given the few components that now
make up the system. Most troubleshooting will simply involve voltage/continuity
testing on the PerfectPass engine harness.
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Wiring Identification
2006 PCM Ti
g
e DBW Harness
To Master Module
Deutsch 14 Pin Amp Seal
Connector Color Function Connector
Pin # Pin #
1 Red +12V 4
2 Black Ground 13
5 Brown RQST 12
6 Orange STAT 1
8 Blue VGOV 10
9 Green Paddle Wheel 8
10 White Tach RPM 9
Problems with PerfectPass Controlling/Not Controlling
Open connection/broken wire) symptoms of a PerfectPass DBW system
Problem #1 RQST Line Open – PerfectPass never takes control in any mode,
the engine is controlled only by the manual throttle handle.
Problem #2 VGOV Line Open (RQST Line OK) – With the PerfectPass system
control ON, the engine will not go above idle no matter how far the manual
throttle is pushed. With PerfectPass control OFF, the engine is controlled as
normal by manual throttle handle.
Problem #3 STAT Line Open (RQST Line and VGOV Lines OK) – Engine
operates normally with PerfectPass control ON, the engine RPM’s become
limited at speed slightly above system set point, but there is no proper control
and speed remains one or two mph above setpoint. The PerfectPass does not
beep to acknowledge engagement and the underline characters never appear.
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(Boat must be on water and running with a paddle signal for this
test to work on a Marine Power Engine).
TESTING
To enter the Test Mode, press the Menu & UP Keys together and scroll down to
“Device Test”. Rope Test will first appear, press menu to enter Servo/Control
Test.
CONTROL 1.0
R RPM
In this test mode. Perfect
Pass requests control of the
ECM and maintains a
constant 2-volt level.
SERVO TEST
CONTROL 2.0
R RPM
SERVO TEST
CONTROL 2.0
R S
RPM
In this screen, the “S”
appears which indicates the
system is working properly.
TEST
(Use UP Key and set control voltage to 2.0)
With engine ON, drive boat and advance the throttle handle to 2800 RPM or
more. When all is working correctly an “S” will appear next to the “R” and the
engine will hold at approximately 2800 RPM. If the RPM is holding at 2800 but
the “S” is not on the display, there is a problem with the “STAT” line. Pressing
the UP Key will change the output voltage by 0.1 volt as shown on the display
and the RPM will increase by 140 RPM for each 0.1 volt increase.
If the RPM does not hold at 2800 the “RQST” line may not be connected. Either
the Request Line or the VGOV Line has lost continuity.
If the engine holds RPM at approximately 2800, but the S does not appear on
screen, then check continuity of the Status Line.
Locate the 14-pin engine connector on the PerfectPass Module. You will need to
apply test tee connectors or insert small test pins beside the wires as they exit
the connector to be able to measure the voltage present on each wire.
-Measure the voltage on the RQST (request line) which should measure less
than 1 volt. (0 to 1 volt)
-Measure voltage on VGOV (vgov line) which should measure about 2 volt.
(1.8 to 2.2 volts)
-Measure voltage on STAT (stat line) which should be 10 + volts.
-Press the OFF key and the “R” will disappear. Now measure voltage on
RQST wire again which should now measure more than 4.5 volts, this
confirms proper operation of PerfectPass Request driver and ECM
connection.
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Trouble Shooting DBW
Problem – System shows rpm & speed on Display, but does not engage &
take control.
Check- Perform Open Circuit tests as described on previous page.
Problem – No speed reading on PerfectPass Display / Very Low Reading
Check – Paddle wheel signal on green wire coming into the Master Module on
Amp Seal Connector. If paddle is spun slowly, you should see 0 volts / 12 volts
as wheel slowly turns. As wheel is spun quickly, you will see an average of 6
volts. (If voltage is good, perform a “System Reset”).
Problem – No rpm reading on PerfectPass display
Check – The RPM signal wire at the Amp Seal connector coming into Master
Module. With engine off you should see about 9 volts. (With engine running, you
should see a normal tach pulse signal) If no signal, check the pin at ECM.
Problem – PerfectPass in Wakeboard mode is set at 22 mph and digital
speedometer shows 22, but actual speed is 24.
Check – Use Menu Key to highlight Menu Arrow Icon and press Down Key to
reach “SPEEDOMETER ADJUST”, quickly press down key several times and
lower speed by 2 mph. All Wakeboard speeds now calibrated.
Problem – Key is on, but PerfectPass screen does not become active and
show data.
Check – PerfectPass requires 12+ volts for start up. Check voltage on red wire
(12 v) power source to Master Module.
Problem – Button on PerfectPass Display does not work.
Check - If system was just installed, unplug Display from harness and inspect all
brass pins on connector to ensure they are inline. If problem occurs after much
use, the Display will require repairs by PerfectPass.
Problem - System not smooth in RPM Mode.
Check – Confirm whether the correct engine selection was made on initial set
up. Press Menu & Up keys together. Menu through until ”System Info” appears. It
will show either [ 5.7 / MPI ] or [ 6.0 / 8.1 ] If it was selected incorrectly, do a
System Reset and select properly.
Problem – In Wakeboard/Trick mode, system sluggish or exhibits some
surging.
Check – Inspect paddle wheel. If paddle appears OK, go into adjustable
parameters by highlighting menu arrow icon, press UP and Wakeboard will
appear. Press DOWN for settings.
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KDW will appear. This value represents how firm the system will control. Heavily
loaded boats may need higher settings. (Typical values 60 – 200)Press Menu to
proceed.
NNW will appear. This is the filter factor of paddle. The higher the value, the
more filtering is done prior to making a speed change.(Typical values 80 – 180)
Problem – The boat accelerates past set speed too far in Wakeboard Mode
before settling in.
Check – Go to “Control Settings” and lower the “CS” value.
Software Adjustments
System Reset – To reset the entire system back to original factory values, press
& hold ON/OFF & MENU Keys together as you turn key on to power
PerfectPass. Continue holding for a few seconds until [ System Reset ^ = Yes ]
appears. Then simply answer questions as they appear.
Switching WakeboardPro <> DigitalPro – If you system was selected
incorrectly, perform a system reset. As you proceed through this process, you
will be asked [Wakeboard Only ^ = YES]. Answer YES for WakeboardPro, and
NO for DigitalPro
Engine Selection – On initial start up or during a system reset, PerfectPass will
ask if you have a standard 5.7 litre engine. This will appear as [ 5.7 / MPI ^ =
Yes ] This means press UP for 5.7 and DOWN for Big Block 6L or 8.1L.
To confirm if correct engine was selected, press Menu & Up Keys together to get
into back ground screen and go to system settings. Following battery voltage, etc
you will see which engine was selected. If incorrect, perform a system reset.
(An incorrectly selected engine can cause unsettled control in rpm mode only)
WakeboardPro to/ DigitalPro – The Master Module for both systems are
identical. The only difference is in the way they were initialized, i.e. as a
DigitalPro or WakeboardPro. You can change the way it was set by performing a
system reset.
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