Intellitec Battery Disconnect BD0 User manual

BATTERY DISCOECT
SERVICE MANUAL
Warning: The Battery Disconnect system connects directly to the vehicle’s positive battery
terminal. Inadvertent shorts across the battery or to ground, may cause severe damage and
injury. Use e treme caution when working with these wires. Always wear safety glasses when
working with the battery connections.
Battery Disconnect provides a simple and safe means of remotely disconnecting
batteries of an RV or boat. With a touch of a remote switch, the batteries will be com-
pletely disconnected, preventing unwanted drain when the RV / boat are put into
storage.
The heart of the system is a unique latching relay developed specifically for this pur-
pose. While this relay is capable of carrying heavy currents, it requires NO power to
stay open or closed. It only draws power during activation. The relay is sealed against
the environments and is designed to withstand the shock and vibration e perienced in
the most severe RV or boat applications.
INTELLITEC
1
PDX RV LLC
Intellitec Battery Disconnect Panel, BD0, 01-00066-004

BATTERY DISCOECT
THE RELAY - How It Works
The Battery Disconnect Relay is a mechanically latching switch that operates by the momen-
tary application of battery voltage to the coil terminals in one direction for latching (closed) or
the other direction for unlatching (open).
To close the relay, +12 volts is applied to the “I” terminal and ground to the “S” terminal of the
relay. When this is done, the plunger is pulled into the coil and the contacts are connected.
While this happens, the rod magnet suspended above the plunger is attracted (opposite poles
attract) to the top of the plunger by the magnetic field. See FIGURE 1
When the voltage is removed from the coil, the plunger gets pushed upward by the return
spring, but cannot move because the rod magnet is in the way. See FIGURE 2
2
INTELLITEC
PDX RV LLC
Intellitec Battery D
isconnect Relay ith No Fuses, 01
-
00055
-
002
http://www.pdxrv.com/catalog/i1362.html

B
TTERY DISCOECT
Relay Closing
Positive polarity applied
to coil. Current flowing
in coil. Plunger pulled in
to coil. Rod magnet
attracted to plunger by
opposite polarity.
Relay Closed
Power removed from coil. Magnet
blocks plunger from coming up,
maintaining contact.
INTELLITEC
3
PDX RV LLC

B
TTERY DISCOECT
To open the relay, +12 volts is applied to the “S” terminal and ground on the “I” terminal. When
this is done, the plunger is again pulled into the coil. However, since the magnetic polarity of the
coil is reversed, the rod magnet is repelled (like poles oppose), and swings out of the way. See
FIGURE 3
When the voltage is removed from the coil, the plunger gets pushed upwards by the return
spring, breaking the connection between the two large terminals. See FIGURE 4.
INTELLITEC
4
PDX RV LLC
Intellitec Battery Disconnect Relay ith Fuses, 01
-
00055
-
000
http://www.pdxrv.com/catalog/i1361.html

B
TTERY DISCOECT
Relay Opening
Negative polarity applied
to coil. Current flowing
in coil. Plunger pulled in.
Rod magnet opposed by
plunger same polarity
magnetic field, swings
out to side of housing.
Relay Open
Power removed. No
current flowing in coil.
Plunger pushed up by
return spring while
magnet is off to the
side. Contacts open.
Magnet comes to rest
at side of plunger.
INTELLITEC
5
PDX RV LLC

B
TTERY DISCOECT
THE SYSTEM
A typical motor
home may use one or two relays to disconnect the batteries. These relays are
usually independent and operate from a switch panel located inside the coach. A harness is
used to connect from the panel to the relays. The Intellitec panels are offered in four models.
They are:
BD0 - Single battery system, with a cable and monitor panel with an on/off indicator
BD1 - Single
battery system, with a cable and monitor panel with an on/off indicator and digital
voltmeter
BD2 -
Dual battery system, with cable and monitor panel with two on/off indicators and ignition
interlock relay.
BD3 -
Dual battery system, with cable and monitor panel with two on/off indicators, digital
voltmeter, and ignition interlock relay.
Note: BD0 panel can be interchanged with BD, and BD2 can be interchanged with BD3
The dual relay panels include an ignition interlock relay that opens the power circuit to the
chassis battery relay when the ignition is turned on, to prevent the battery from being acci-
dently opened when the engine is running.
A typical circuit is sho
wn in FIGURE 5 and FIGURE 6. The switches are each double pole,
double throw, momentary, center off. Operating the switch in either direction will cause the
relays to open or close, depending on the polarity of the voltage applied.
FUSES
There are two 5 Amp fuses for the system, mounted on each relay. Looking at the relay with
cap at the top, the fuse on the right feeds the LED indicator and, if so equipped, the digital
voltmeter. The fuse on the left feeds the power to the switch that operates the solenoid.
INTELLITEC
6
PDX RV LLC
BD0 (BLACK/ ILVER) 01-00066-004 http://www.pdxrv.com/catalog/i2755.html
BD0 (BROWN/GOLD) 01-00066-000 http://www.pdxrv.com/catalog/i1399.html
BD1 (BLACK/ ILVER) 01-00066-005 http://www.pdxrv.com/catalog/i2757.html
BD1 (BROWN/GOLD) 01-00066-001 http://www.pdxrv.com/catalog/i1364.html
BD2 (BLACK/ ILVER) 01-00066-006 http://www.pdxrv.com/catalog/i2758.html
BD2 (BROWN/GOLD) 01-00066-002 http://www.pdxrv.com/catalog/i1363.html
BD3 (BLACK/ ILVER) 01-00066-007 http://www.pdxrv.com/catalog/i2759.html
BD3 (BROWN/GOLD) 01-00066-003 http://www.pdxrv.com/catalog/i1400.html

BATTERY DISCOECT
Trouble Shooting
Possible
Problem
Cause/Solution
House
Relay won't
engage, BD0 & BD1
MODELS ONLY
Check fuses on relay
. If not blown go to step 3, if
blown replace with same size fuse and retest. If fuse /
fuses re-blow go to step 2.
Check battery voltage,
the voltage
must
be greater
than 10.5 Volts DC for the latching relay to close or
open. If batteries are below 10.5 Volts DC, charge
batteries and retest. If the batteries are charged and
are above 10.5 Volts DC go to step 4.
With an assistant, press
and hold momentary
switch, at the same time check for voltage across
the coil terminals (+ on the "I" terminal and
ground on the " " terminal), If 0 volts go to step
5. If voltage is 10.5 VDC or larger between the
“I” & “S” terminals, repla e relay.
INTELLITEC
7
PDX RV LLC
Disconnect
harness
from battery disconnect
panel inside of RV, replace fuse, if fuse re-blows
either attempt to find damage in the harness
and repair or replace harness, (see PARTS
LINK# 1 below). If fuse doesn’t blow then go to
step 3
BDO / BD1 HARNE , 11-00063-000
Parts link: http://www.pdxrv.com/catalog/i2756.html
BD2 / BD2 HARNE , 11-00139-000
Parts link:
http://www.pdxrv.com/catalog/i2761.html
STEP 1
STEP 2
STEP 3
S
TEP 4
Remove battery disconnect panel from cabinet /
console and with a multi-meter set on DC voltage,
measure between the red wire at pin # 3 and the
black wire on pin # 6. The voltage should read the
same approximate value as the batteries. If not
replace harness, refer to PART LINK#1. If the
voltage reading is the same go to step 6.
STEP 5
With a multi
-
meter set on DC voltage, measure
between the red wire at pin # 3 and the brown wire
on pin # 1 while the switch is depressed. The
voltage should read the same approximate value as
the batteries. If not replace disconnect panel, refer
to PART LINK # 2 (page 8). If the reading is the
same go to step 7.
STEP 6
PARTS LINK #1

BATTERY DISCOECT
Trouble Shooting
Problem
Possible
Cause/Solution
8
INTELLITEC
PDX RV LLC
House Relay won't
disengage, BD0 &
BD1 MODELS
ONLY
BD0 (BROWN/GOLD) 01-00066-000
Parts link: http://www.pdxrv.com/catalog/i1399.html
BD0 (BLACK/ ILVER) 01-00066-004
Parts link: http://www.pdxrv.com/catalog/i2755.html
BD1 (BROWN/GOLD) 01-00066-001
Parts link: http://www.pdxrv.com/catalog/i1364.html
BD1 (BLACK/ ILVER) 01-00066-005
Parts link: http://www.pdxrv.com/catalog/i2757.html
BD2 (BROWN/GOLD) 01-00066-002
Parts link: http://www.pdxrv.com/catalog/i1363.html
BD2 (BLACK/ ILVER) 01-00066-006
Parts link: http://www.pdxrv.com/catalog/i2758.html
BD3 (BROWN/GOLD) 01-00066-003
Parts link: http://www.pdxrv.com/catalog/i1400.html
BD3 (BLACK/ ILVER) 01-00066-007
Parts link: http://www.pdxrv.com/catalog/i2759.html
PARTS LINK #2
With a multi
-
meter set on DC voltage, measure
between the black wire at pin # 6 and the white
wire on pin # 4 while the switch is pressed. The
voltage should read the same approximate value as
the batteries. If not replace disconnect panel, refer
to PART LINK # 2 (this page).
STEP 7
Problem
Possible
Cause/Solution
Check fuses on relay
. If not blown go to step 10, if
blown replace with size fuse and retest. If fuse / fuses
re-blow go to step 9.
Disconnect
harness
from battery disconnect
panel inside of RV, replace fuse, if fuse re-blows
either attempt to find damage in the harness
and repair or replace harness, (see P# 1 link
page 7). If fuse doesn’t blow then go to step 10.
STEP 8
STEP 9
Check battery voltage,
the voltage
must be greater
than 10.5 Volts DC for the latching relay to close or
open. If batteries are below 10.5 Volts DC, charge
batteries and retest. If the batteries are charged and
are above 10.5 Volts DC go to step11.
ST
EP 10
House
Relay won't
engage, BD0 & BD1
MODELS ONLY
Trouble Shooting

BATTERY DISCOECT
9
PDX RV LLC
INTELLITEC
Trouble Shooting
Problem
Possible
Cause/Solution
With an assistant, press and hold momentary
switch, at the same time check for voltage across
the coil terminals (+ on the " " terminal and
ground on the "I" terminal), If 0 volts go to step
12. If voltage is 10.5 VDC or larger between the
“S” & “I” terminals, repla e relay.
STEP 11
Remove battery disconnect panel from cabinet /
console and with a multi-meter set on DC voltage,
measure between the red wire at pin # 3 and the
black wire on pin # 6. The voltage should read the
same approximate value as the batteries. If not
replace harness, refer to PART LINK#1 (page 7).
If the voltage reading is the same go to step 13.
STEP 12
With a multi
-
meter set on DC voltage, measure
between the red wire at pin # 3 and the white wire
on pin #4 while the switch is depressed. The
voltage should read the same approximate value as
the batteries. If not replace disconnect panel, refer
to PART LINK # 2 (page 7). If the reading is the
same go to step 14.
STEP 13
With a multi
-
meter set on
DC voltage, measure
between the black wire at pin # 6 and the brown
wire on pin # 1 while the switch is pressed. The
voltage should read the same approximate value as
the batteries. If not replace disconnect panel, refer
to PART LINK # 2 (page 7).
ST
EP 14
Trouble Shooting
House indicator light on
panel remains on although
relay is off. BD0 & BD1
MODELS ONLY
Is coach plugged in, unplug coach and retest
Is engine running, turn engine off and retest
If the panel fails one or both retests then go to step
16.
Possible
Problem
Cause/Solution
STEP 15
House Relay won't
disengage, BD0 &
BD1 MODELS
ONLY

BATTERY DISCOECT
Trouble Shooting
Problem
Possible
Cause/Solution
STEP 16
Remove the battery disconnect panel from cabinet
/ console and with a multi-meter set on DC
voltage, measure between the green wire at pin # 5
and the black wire on pin # 6. The voltage should
read 0 Volts DC. If it reads 0 VDC then replace
switch panel, refer to PART LINK #2 (page 8). If
the voltage reading is the same as the nominal
battery reading then go to step 18.
STEP 17
Verify that the relay is actually in the disengaged
(unlatched) state. With a test light, probe the larger
5/16” stud terminals on each side of the relay. Only
one terminal should be powered up in the
disengaged state. If both studs are powering up the
test light go to step 8. If only one 5/16” terminal is
powered up go to step 17
Leave the battery disconnect switch unplugged. At
the relay location, disconnect the green wire from
the relay. With a test light, probe the fuse for
voltage. If the test light powers up, replace the
relay and retest. If it does not, then probe the green
wire. If there is voltage present replace the harness,
refer to PART LINK #1 (page 7)
Disconnect the plug from the battery disconnect
panel, with a multi-meter set on DC voltage,
measure between the green wire at pin # 5 and the
black wire on pin # 6. The voltage continues to
read 12 Volts DC go to step 19. If it now reads 0
VDC then replace switch panel, refer to PART
LINK #2 (page 8).
Trouble Shooting
Problem
Verify that the relay is actually in the engaged
(latched) state. With a test light, probe the larger
5/16” stud terminals on each side of the relay. Both
terminals should be powered up in the engaged
(latched) state. If only one is powering up the test
light go to step 1. If both 5/16” terminals are
powered up go to step 21.
Possible
Cause/Solution
STEP 18
STEP 19
STEP 20
House indicator light on
panel remains on although
relay is off. BD0 & BD1
MODELS ONLY
House indicator light
is off
although relay is on
(latched). BD0 & BD1
MODELS ONLY
10

BATTERY DISCOECT
Trouble Shooting
Problem
Possible
Cause/Solution
INTELLITEC
PDX RV LLC
11
Remove the battery disconnect panel from cabinet
/ console and with a multi-meter set on DC
voltage, measure between the green wire at pin # 5
and the black wire on pin # 6. The voltage should
read whatever DC voltage as the batteries read
(typically around 12 volts). If it reads 0 VDC then
inspect the harness for damage, or replace harness,
refer to PART LINK #1 (page 7). If the voltage
reading is the same as the nominal battery reading
then replace battery disconnect panel, refer to
PART LINK #2 (page 8)
Check fuses on relay
. If not blown go to step 22, if
blown replace with size fuse and retest. If fuse / fuses
re-blow go to step 9.
STEP 21
STEP 22
House indicator light
is off
although relay is on
(latched). BD0 & BD1
MODELS ONLY
Trouble Shooting
Problem
Possible
Cause/Solution
House
Relay won't
engage, BD2 & BD3
MODELS ONLY
Check fuses on
house
relay
. If not blown go to step
25, if blown replace with size fuse and retest. If fuse /
fuses re-blow go to step 24.
STEP 23
Disconnect
harness
from battery disconnect
panel inside of RV, replace fuse, if fuse re-blows
either attempt to find damage in the harness
and repair or replace harness, (see PARTS
LINK# 1 page 7). If fuse doesn’t blow then go to
step 25.
STEP 24
Check battery voltage,
the vo
ltage
must be greater
than 10.5 Volts DC for the latching relay to close or
open. If batteries are below 10.5 Volts DC, charge
batteries and retest. If the batteries are charged and
are above 10.5 Volts DC go to step 26.
STEP 25
With an assistant, press and hold momentary
switch, at the same time check for voltage across
the coil terminals (+ on the "I" terminal and
ground on the " " terminal), If 0 volts go to step
27. If voltage is 10.5 VDC or larger between the
“I” & “S” terminals, repla e house relay.
STEP 26

BATTTERY DISCOECT
Trouble Shooting
Problem
Remove battery disconnect panel from cabinet /
console and with a multi-meter set on DC voltage,
measure between the red wire at pin # 2 and the
black wire on pin # 12. The voltage should read
the same approximate value as the batteries. If not
replace harness, refer to PART LINK#1 (page 7).
If the voltage reading is the same go to step 28.
Possible
Cause/Solution
House
Relay won't
engage, BD2 & BD3
MODELS ONLY
With a multi
-
meter set on DC voltage, measure
between the red wire at pin # 2 and the brown wire
on pin # 1 while the switch is depressed. The
voltage should read the same approximate value as
the batteries. If not replace disconnect panel, refer
to PART LINK # 2 (next page8). If the reading is
the same go to step 29.
STEP 27
STEP 28
With a
multi
-
meter set on DC voltage, measure
between the black wire at pin # 12 and the white
wire on pin # 4 while the switch is pressed. The
voltage should read the same approximate value as
the batteries. If not replace disconnect panel, refer
to PART LINK
# 2 (page 8).
STEP 29
Trouble Shooting
Problem
Possible
Cause/Solution
House Relay won't
disengage, BD2 &
BD3 MODELS
ONLY
Check fuses on relay
. If
not blown go to step 32, if
blown replace with size fuse and retest. If fuse / fuses
re-blow go to step 31.
STEP 30
Disconnect
harness
from battery disconnect
panel inside of RV, replace fuse, if fuse re-blows
either attempt to find damage in the harness
and repair or replace harness, (see P# 1 link
page 7). If fuse doesn’t blow then go to step 32.
STEP 31
12
INTELLITEC
PDX RV LLC
Check battery voltage,
the voltage
must be greater
than 10.5 Volts DC for the latching relay to close or
open. If batteries are below 10.5 Volts DC, charge
batteries and retest. If the batteries are charged and
are above 10.5 Volts DC go to step33.
STEP 32

BATTERY DISCOECT
13
INTELLITEC
PDX RV LLC
Trouble Shooting
Problem
House Relay won't
disengage, BD2 &
BD3 MODELS
ONLY
Possible
Cause/Solution
With an assistant, press and hold momentary
switch, at the same time check for voltage across
the coil terminals (+ on the " " terminal and
ground on the "I" terminal), If 0 volts go to step
34. If voltage is 10.5 VDC or larger between the
“S” & “I” terminals, repla e house relay.
STEP 33
Remove battery disconnect panel from cabinet /
console and with a multi-meter set on DC voltage,
measure between the red wire at pin # 2 and the
black wire on pin # 12. The voltage should read
the same approximate value as the batteries. If not
replace harness, refer to PART LINK#1 (page 7).
If the voltage reading is the same go to step 35.
With a multi
-
meter set on DC voltage, measure
between the red wire at pin # 2 and the white wire
on pin #4 while the switch is depressed. The
voltage should read the same approximate value as
the batteries. If not replace disconnect panel, refer
to PART LINK # 2 (page 7). If the reading is the
same go to step 36.
STEP
34
STEP 35
With a multi
-
meter set on DC voltage, measure
between the black wire at pin # 12 and the brown
wire on pin # 1 while the switch is pressed. The
voltage should read the same approximate value as
the batteries. If not replace disconnect panel, refer
to PART LINK # 2 (page 7).
STEP 36
Trouble Shooting
Possible
Cause/Solution
Problem
House indicator light on
panel remains on although
relay is off. BD2 & BD3
MODELS ONLY
Is coach plugged in, unplug coach and retest
Is engine running, turn engine off and retest
If the panel fails one or both retests then go to step
38.
STEP 37

BATTERY DISCOECT
INTELLITEC
PDX RV LLC
Trouble Shooting
Problem
Possible
Cause / Solution
Verify that the relay is actually in the disengaged
(unlatched) state. With a test light, probe the larger
5/16” stud terminals on each side of the relay. Only
one terminal should be powered up in the
disengaged state. If both studs are powering up the
test light go to step 8. If only one 5/16” terminal is
powered up go to step 39.
STEP 38
House indicator light on
panel remains on although
relay is off. BD2 & BD3
MODELS ONLY
Remove the battery disconnect panel from cabinet
/ console and with a multi-meter set on DC
voltage, measure between the green wire at pin #
10 and the black wire on pin # 12. The voltage
should read 0 Volts DC. If it reads 0 VDC then
replace switch panel, refer to PART LINK #2
(page 8). If the voltage reading is the same as the
nominal battery reading then go to step 40.
STEP 39
Disconnect the plug from the battery disconnect
panel, with a multi-meter set on DC voltage,
measure between the green wire at pin # 10 and the
black wire on pin # 12. The voltage continues to
read 12 Volts DC go to step 41. If it now reads 0
VDC then replace switch panel, refer to PART
LINK #2 (page 8).
STEP 40
L
eave the battery disconnect switch unplugged. At
the relay location, disconnect the green wire from
the relay. With a test light, probe the fuse for
voltage. If the test light powers up, replace the
relay and retest. If it does not, then probe the green
wire. If there is voltage present replace the harness,
refer to PART LINK #1 (page 7)
STEP 41
14

BATTERY DISCOECT
Trouble Shooting
Problem
Possible
Cause / Solution
House indicator light
is off
although relay is on
(latched). BD2 & BD3
MODELS ONLY
Verify that the relay is actually in the engaged
(latched) state. With a test light, probe the larger
5/16” stud terminals on each side of the relay. Both
terminals should be powered up in the engaged
(latched) state. If only one is powering up the test
light go to step 1. If both 5/16” terminals are
powered up go to step 43.
STEP 42
Check fuses on relay
. If not blown go to step 44, if
blown replace with size fuse and retest. If fuse / fuses
re-blow go to step 9.
Remove the battery disconnect panel from cabinet
/ console and with a multi-meter set on DC
voltage, measure between the green wire at pin # 5
and the black wire on pin # 6. The voltage should
read whatever DC voltage as the batteries read
(typically around 12 volts). If it reads 0 VDC then
inspect the harness for damage, or replace harness,
refer to PART LINK #1 (page 7). If the voltage
reading is the same as the nominal battery reading
then replace battery disconnect panel, refer to
PART LINK #2 (page 8)
STEP 43
STEP 44
15
INTELLITEC
PDX RV LLC
Trouble Shooting
Problem
Possible
Cause / Solution
Chassis Relay won't
engage (latch), BD2
& BD3 MODELS
ONLY
STEP 45
Check fuses on
chassis
relay
. If not blown go to step
47, if blown replace with same size fuse and retest. If
fuse / fuses re-blow go to step 46.
Disconnect
harness
from battery disconnect
panel inside of RV, replace fuse, if fuse re-blows
either attempt to find damage in the harness
and repair or replace harness, (see PARTS
LINK# 1 page 7). If fuse doesn’t blow then go to
step 47.
STEP 46

INTELLITEC PDX RV LLC
BATTERY DISCOECT
Check battery voltage,
the voltage
must be greater
than 10.5 Volts DC for the latching relay to close or
open. If batteries are below 10.5 Volts DC, charge
batteries and retest. If the batteries are charged and
are above 10.5 Volts DC go to step 48.
Possible
Cause / Solution
Trouble Shooting
Problem
Chassis Relay won't
engage (latch), BD2
& BD3 MODELS
ONLY
STEP 47
With an assistant, press and hold momentary
switch, at the same time check for voltage across
the coil terminals of the chassis battery relay(+ on
the "I" terminal and ground on the " " terminal), If
0 volts go to step 49. If voltage is 10.5 VDC or
larger between the “I” & “S” terminals, repla e
hassis relay.
Remove battery disconnect panel from cabinet /
console and with a multi-meter set on DC voltage,
measure between the orange wire at pin # 7 and the
black wire on pin # 12. The voltage should read
the same approximate value as the batteries. If not
replace harness, refer to PART LINK#1 (page 7).
If the voltage reading is the same go to step 50.
STEP 48
STEP 49
STEP 50
With a multi
-
meter set on DC voltage, measure
between the orange wire at pin # 7 and the gray
wire on pin # 8 while the switch is depressed. The
voltage should read the same approximate value as
the batteries. If not replace disconnect panel, refer
to PART LINK # 2 (page8). If the reading is the
same go to step 51.
With a multi
-
meter set on DC
voltage, measure
between the black wire at pin # 12 and the violet
wire on pin # 6 while the switch is pressed. The
voltage should read the same approximate value as
the batteries. If not replace disconnect panel, refer
to PART LINK # 2 (page 8).
STE
P 51
16

17
INTELLITEC PDX RV LLC
BATTERY DISCOECT
Trouble Shooting
Problem
Chassis Relay won't
disengage (unlatch),
BD2 & BD3
MODELS ONLY
Possible
Cause / Solution
Check fuses on relay
. If not blown go to step 54, if
blown replace with same size fuse and retest. If fuse /
fuses re-blow go to step 54.
STEP 52
Disconnect
harness
from battery disconnect
panel inside of RV, replace fuse, if fuse re-blows
either attempt to find damage in the harness
and repair or replace harness, (see P# 1 link
page 7). If fuse doesn’t blow then go to step 55.
STEP 53
STEP 54
Check battery voltage,
the voltage
must be greater
than 10.5 Volts DC for the latching relay to close or
open. If batteries are below 10.5 Volts DC, charge
batteries and retest. If the batteries are charged and
are above 10.5 Volts DC go to step 56.
STEP 55
(OTE
: The BD2 & BD3 panels have an interlock
that will not allow chassis battery bank to be
“unlatched” while ignition is on. This feature
should not be defeated as high voltages from the
alternator can damage sensitive electronics
Is engine running / ignition is on, turn engine off /
switch off ignition and retest.
If the panel fails retests then go to step 53.
STEP 56
Remove battery disconnect panel from cabinet /
console and with a multi-meter set on DC voltage,
measure between the blue wire at pin # 5 and the
black wire on pin # 12. The voltage should read 0
VDC, if your reading a voltage of 10.5 VDC or
greater go to step 57. If the voltage reading is 0
VDC then go to step 58.
STEP 57
(OTE
: The BD2 & BD3 panels have an interlock
that will not allow the chassis battery bank to be
“unlatched” while ignition is on.
Disconnect the plug from the battery disconnect
panel, re-measure between the blue wire and the
black wire. If there is no voltage, replace the
battery disconnect panel, refer to PART LINK # 2
(page 8). If there is voltage on the blue wire, TB H
the ignition circuit as the ignition circuit is still on
and is not being controlled by the ignition switch.

BATTERY DISCOECT
INTELLITEC
PDX RV LLC
With an assistant, press and hold momentary
switch, at the same time check for voltage across
the coil terminals (+ on the " " terminal and
ground on the "I" terminal), If 0 volts go to step
59. If voltage is 10.5 VDC or larger between the
“S” & “I” terminals, repla e hassis relay.
Remove battery disconnect panel from cabinet /
console and with a multi-meter set on DC voltage,
measure between the orange wire at pin # 7 and the
black wire on pin # 12. The voltage should read
the same approximate value as the batteries. If not
replace harness, refer to PART LINK#1 (page 7).
If the voltage reading is the same go to step 60.
Trouble Shooting
Problem
Chassis Relay won't
disengage (unlatch),
BD2 & BD3
MODELS ONLY
Possible
Cause / Solution
STEP 58
STEP 59
With a multi
-
meter set
on DC voltage, measure
between the orange wire at pin # 7 and the violet
wire on pin #6 while the switch is depressed. The
voltage should read the same approximate value as
the batteries. If not replace disconnect panel, refer
to PART LINK # 2 (page 7). If the reading is the
same go to step 61.
STEP 60
With a multi
-
meter set on DC voltage, measure
between the black wire at pin # 12 and the gray
wire on pin # 8 while the switch is pressed. The
voltage should read the same approximate value as
the batteries. If not replace disconnect panel, refer
to PART LINK # 2 (page 7).
STEP 61
Trouble Shooting
Problem
Possible
Cause / Solution
Chassis
indicator light on
panel remains on, although
relay is off. BD2 & BD3
MODELS ONLY
Is engine running / ignition switch on, turn engine
off and retest
If the panel fails retests then go to step 63.
STEP 62
18

Verify that the relay is actually in the disengaged
(unlatched) state. With a test light, probe the larger
5/16” stud terminals on each side of the relay. Only
one terminal should be powered up in the
disengaged state. If both studs are powering up the
test light go to step 52. If only one 5/16” terminal is
powered up go to step 64.
INTELLITEC
PDX RV LLC
BATTERY DISCOECT
Trouble Shooting
Problem
Possible
Cause / Solution
STEP 63
Chassis
indicator light on
panel remains on, although
relay is off. BD2 & BD3
MODELS ONLY
Remove the battery disconnect panel from cabinet
/ console and with a multi-meter set on DC
voltage, measure between the yellow wire at pin #
11 and the black wire on pin # 12. The voltage
should read 0 Volts DC. If it reads 0 VDC then
replace switch panel, refer to PART LINK #2
(page 8). If the voltage reading is the same as the
nominal battery reading then go to step 65.
STEP 64
Disconnect the plug from the battery disconnect
panel, with a multi-meter set on DC voltage,
measure between the yellow wire at pin # 11 and
the black wire on pin # 12. If the voltage continues
to read 12 Volts DC go to step 41. If it now reads 0
VDC then replace switch panel, refer to PART
LINK #2 (page 8).
STEP 65
Leave the battery disconnect switch unplugged. At
the relay location, disconnect the yellow wire from
the relay. With a test light, probe the fuse for
voltage. If the test light powers up, replace the
relay and retest. If it does not, then probe the green
wire. If there is voltage present replace the harness,
refer to PART LINK #1 (page 7)
STEP
66
Chassis
indicator light
is off
although relay is on
(latched). BD2 & BD3
MODELS ONLY
Trouble Shooting
Problem
Possible
Cause / Solution
Verify that the relay is actually in the engaged
(latched) state. With a test light, probe the larger
5/16” stud terminals on each side of the relay. Both
terminals should be powered up in the engaged
(latched) state. If only one is powering up the test
light go to step 45. If both 5/16” terminals are
powered up go to step 68.
STEP 67
19

No voltmeter reading on
battery disconnect panel
display panel. BD3 MODEL
ONLY
INTELLITEC
PDX RV LLC
BATTERY DISCOECT
Chassis
indicator light
is off
although relay is on
(latched). BD2 & BD3
MODELS ONLY
Trouble Shooting
Problem
Possible
Cause / Solution
Check fuses on
chassis
relay
. If not blown
go to step
68, if blown replace with size fuse and retest. If fuse /
fuses re-blow go to step 9.
STEP 67
Remove the battery disconnect panel from cabinet
/ console and with a multi-meter set on DC
voltage, measure between the yellow wire at pin #
11 and the black wire on pin # 6. The voltage
should read whatever DC voltage as the batteries
read (typically around 12 volts). If it reads 0 VDC
then inspect the harness for damage, or replace
harness, refer to PART LINK #1 (page 7). If the
voltage reading is the same as the nominal battery
reading then replace battery disconnect panel, refer
to PART LINK #2 (page 8)
STEP 68
Trouble Shooting
Problem
Possible
Cause / Solution
Check fuse
on
house
relay
that attaches to the green
wire. If not blown go to step 69, if blown replace
with size fuse and retest. If fuse / fuses re-blow go to
step 9.
STEP 68
Remove the battery disconnect panel from cabinet
/ console and with a multi-meter set on DC
voltage, measure between the green wire at pin # 5
and the black wire on pin # 6. The voltage should
read whatever DC voltage as the batteries read
(typically around 12 volts). If it reads 0 VDC then
inspect the harness for damage, or replace harness,
refer to PART LINK #1 (page 7). If the voltage
reading is the same as the nominal battery reading
then replace battery disconnect panel, refer to
PART LINK #2 (page 8)
STEP 69
20