CHRYSLER VOYAGER 2001 Service Manual

Symptom:
INTERNAL DRIVER FAULT #2
When Monitored and Set Condition:
INTERNAL DRIVER FAULT #2
When Monitored: Continuously with the ignition on.
Set Condition: The Front Control Module has detected an internal malfunction of the
module.
POSSIBLE CAUSES
FRONT CONTROL MODULE INTERNAL MALFUNCTION
INTERMITTENT CONDITION
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, erase the current Front Control Module DTC's.
Turn the ignition off, wait 10 seconds then turn the ignition on.
With the DRBIIIt, read the current Front Control Module DTC's.
Does the DRBIIItdisplay: INTERNAL DRIVER FAULT #2?All
Ye s®Replace the Front Control Module.
Perform BODY VERIFICATION TEST - VER 1.
No®This symptom represents an internal malfunction in the Front
Control Module. The condition that caused this symptom is
currently not present.
Perform BODY VERIFICATION TEST - VER 1.
632
INTELLIGENT POWER MODULE

Symptom:
INTERNAL DRIVER FAULT #3
When Monitored and Set Condition:
INTERNAL DRIVER FAULT #3
When Monitored: Continuously with the ignition on.
Set Condition: The Front Control Module has detected an internal malfunction of the
module.
POSSIBLE CAUSES
FRONT CONTROL MODULE INTERNAL MALFUNCTION
INTERMITTENT CONDITION
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, erase the current Front Control Module DTC's.
Turn the ignition off, wait 10 seconds then turn the ignition on.
With the DRBIIIt, read the current Front Control Module DTC's.
Does the DRBIIItdisplay: INTERNAL DRIVER FAULT #3?All
Ye s®Replace the Front Control Module.
Perform BODY VERIFICATION TEST - VER 1.
No®This symptom represents an internal malfunction in the Front
Control Module. The condition that caused this symptom is
currently not present.
Perform BODY VERIFICATION TEST - VER 1.
633
INTELLIGENT POWER MODULE

Symptom:
DOME LAMP OUTPUT SHORT
When Monitored and Set Condition:
DOME LAMP OUTPUT SHORT
When Monitored: Anytime the Body Control Module is active.
Set Condition: When output voltage status is LOW.
POSSIBLE CAUSES
PANEL LAMPS DIMMER SIGNAL CIRCUIT SHORT
HEADLAMP SWITCH MUX RETURN CIRCUIT SHORT TO GROUND
BODY CONTROL MODULE
COURTESY LAMPS DRIVER DOME CIRCUIT SHORT
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, clear all BCM DTC's.
Turn the Dome Lamps on.
With the DRBIIIt, read the DTC information.
Does the DRBIIItread: Dome Lamp Output Short?All
Ye s®Go To 2
No®Repair the Panel Lamps Dimmer Signal Circuit for a short
condition.
Perform BODY VERIFICATION TEST - VER 1.
2 Turn the ignition off.
Disconnect the Headlamp Switch harness connector.
Disconnect the Body Control Module harness connector.
Measure the resistance of the Headlamp Switch MUX Return Circuit.
Is the resistance below 5.0 ohms?All
Ye s®Repair the Headlamp Switch MUX Return Circuit for a short to
ground.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 3
3 Turn the ignition off.
Disconnect the Body Control Module harness connector.
Measure the resistance of the Courtesy Lamps Driver - Dome Circuit.
Is the resistance below 5.0 ohms?All
Ye s®Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
No®Repair the Courtesy Lamps Driver - Dome Circuit for a short
condition.
Perform BODY VERIFICATION TEST - VER 1.
634
INTERIOR LIGHTING

Symptom:
DOME SWITCH INPUT OPEN
When Monitored and Set Condition:
DOME SWITCH INPUT OPEN
When Monitored: Dome Lamps Off.
Set Condition: When Voltage is below 4.8 volts for 62.5 msec.
POSSIBLE CAUSES
HEADLAMP SWITCH MUX RETURN CIRCUIT OPEN
PANEL LAMPS DIMMER SIGNAL CIRCUIT OPEN
BODY CONTROL MODULE
HEADLAMP SWITCH
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, clear all BCM DTC's.
Turn the Dome Lamps on.
With the DRBIIIt, read the DTC information.
Does the DRBIIItdisplay: Dome Switch Input Open?All
Ye s®Go To 2
No®Repair the Headlamp Switch MUX Return Circuit for an open
condition.
Perform BODY VERIFICATION TEST - VER 1.
2 Turn the ignition off.
Disconnect the Body Control Module harness connector.
Disconnect the Headlamp Switch harness connector.
Measure the resistance of the Panel Lamps Dimmer Signal Circuit.
Is the resistance below 5.0 ohms?All
Ye s®Go To 3
No®Repair the Panel Lamps Dimmer Signal Circuit for an open
condition.
Perform BODY VERIFICATION TEST - VER 1.
3 Turn the ignition off.
Disconnect the Headlamp Switch harness connector.
Disconnect the Body Control Module harness connector.
Measure the voltage of the Headlamp Switch MUX Return Circuit.
Is the voltage below 4.8 volts?All
Ye s®Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
No®Replace the Headlamp Switch.
Perform BODY VERIFICATION TEST - VER 1.
635
INTERIOR LIGHTING

Symptom:
DOME SWITCH INPUT SHORT
When Monitored and Set Condition:
DOME SWITCH INPUT SHORT
When Monitored: Dome Lamps Off.
Set Condition: When Voltage has gone below 0.196 volts for 62.5 msec.
POSSIBLE CAUSES
PANEL LAMPS DIMMER SIGNAL CIRCUIT SHORT
PANEL LAMPS DIMMER SIGNAL CIRCUIT SHORT TO GROUND
HEADLAMP SWITCH MUX RETURN CIRCUIT SHORT TO GROUND
HEADLAMP SWITCH
BODY CONTROL MODULE
TEST ACTION APPLICABILITY
1 Turn the ignition off.
Disconnect the Body Control Module C5 connector.
Measure the resistance between the Panel Lamps Dimmer Signal Circuit and the
Headlamp Switch MUX Return Circuit.
Is either circuit below 1000 ohms?All
Ye s®Go To 2
No®Repair the Panel Lamps Dimmer Signal Circuit shorted to the
Headlamp Switch MUX Return Circuit.
Perform BODY VERIFICATION TEST - VER 1.
2 Turn the ignition off.
Disconnect the Headlamp Switch harness connector.
Disconnect the Body Control Module C5 connector.
Measure the resistance of the Panel Lamps Dimmer Signal Circuit to ground.
Is the resistance below 1000 ohms?All
Ye s®Repair the Panel Lamps Dimmer Signal Circuit for a short to
ground.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 3
3 Turn the ignition off.
Disconnect the Headlamp Switch harness connector.
Disconnect the Body Control Module C5 harness connector.
Measure the resistance of the Headlamp Switch MUX Return Circuit to ground.
Is the resistance below 1000 ohms?All
Ye s®Repair the Headlamp Switch MUX Return Circuit for a short to
ground.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 4
636
INTERIOR LIGHTING

TEST ACTION APPLICABILITY
4 Turn the ignition off.
Disconnect the Headlamp Switch harness connector.
Measure the resistance of the Panel Lamps Dimmer Signal Circuit and the
Headlamp Switch MUX Return Circuit to ground.
Is the resistance of either circuit below 1000 ohms?All
Ye s®Replace the Headlamp Switch.
Perform BODY VERIFICATION TEST - VER 1.
No®Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
637
INTERIOR LIGHTING
DOME SWITCH INPUT SHORT ÐContinued

Symptom:
FRONT COURTESY LAMPS OUTPUT SHORT
When Monitored and Set Condition:
FRONT COURTESY LAMPS OUTPUT SHORT
When Monitored: Anytime the Body Control Module is active.
Set Condition: When the voltage of the Headlamp Switch MUX Return Circuit falls below
5.0 volts for 10 seconds.
POSSIBLE CAUSES
HEALAMP SWITCH MUX RETURN CIRCUIT SHORT TO GROUND
COURTESY LAMPS DRIVER CIRCUIT OPEN
PANEL LAMPS DIMMER SIGNAL CIRCUIT OPEN
BODY CONTROL MODULE
HEADLAMP SWITCH
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, clear all BCM DTC's.
Turn the courtesy lamps on.
With the DRBIIIt, read the DTC information.
Does the DRBIIItread: Front Courtesy Lamps Output Short?All
Ye s®Repair the Headlamp Switch MUX Return Circuit for a short to
ground condition.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 2
2 Turn the ignition off.
Remove and inspect the inoperative courtesy lamp bulb.
With the DRBIIIt, measure the resistance of the Courtesy Lamps Driver- Dome
Circuit.
Is the resistance above 1000 ohms?All
Ye s®Go To 3
No®Repair the Open Courtesy Lamps Driver-Dome Circuit and re-
place the bulb.
Perform BODY VERIFICATION TEST - VER 1.
3 Turn the ignition off.
Disconnect the Headlamp Switch harness connector.
Disconnect the Body Control Module harness connector.
Measure the resistance of the Panel Lamps Dimmer Signal Circuit.
Is the resistance below 5.0 ohms?All
Ye s®Go To 4
No®Repair the Open Panel Lamps Dimmer Signal Circuit.
Perform BODY VERIFICATION TEST - VER 1.
638
INTERIOR LIGHTING

TEST ACTION APPLICABILITY
4 Turn the ignition off.
Disconnect the Headlamp Switch harness connector.
Disconnect the Body Control Module harness connector.
Measure the voltage of the Headlamp Switch MUX Return Circuit.
Is the voltage below 5.0 volts?All
Ye s®Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
No®Replace the Headlamp Switch.
Perform BODY VERIFICATION TEST - VER 1.
639
INTERIOR LIGHTING
FRONT COURTESY LAMPS OUTPUT SHORT ÐContinued

Symptom:
HALO/DOOR/LIFTGATE LAMP OUTPUT SHORT
POSSIBLE CAUSES
COURTESY LAMPS DRIVER - DOOR CIRCUIT SHORT TO GROUND
COURTESY LAMPS DRIVER - LIFTGATE CIRCUIT SHORT TO GROUND
BODY CONTROL MODULE
HALO LAMP DRIVER CIRCUIT SHORT TO GROUND
TEST ACTION APPLICABILITY
1 With the DRBIIIt, clear all present DTC's.
Open the Drivers and Front Passenger door.
With the DRBIIIt, read the DTC information.
Does the DRBIIItread: Halo/Door/Liftgate Lamp Output Short?All
Ye s®Go To 2
No®Repair the Courtesy Lamps Driver - Door Circuit for a short to
ground.
Perform BODY VERIFICATION TEST - VER 1.
2 With the DRBIIIt, clear all present DTC's
Open the Liftgate.
With the DRBIIIt, read the DTC information.
Does the DRBIIItread: Halo/Door/Liftgate Lamp Output Short?All
Ye s®Go To 3
No®Repair the Courtesy Lamps Driver - Liftgate Circuit for a short
condition.
Perform BODY VERIFICATION TEST - VER 1.
3 Turn the ignition off.
Disconnect the Body Control Module harness connector C4.
Measure the resistance of the Halo Lamp Driver Circuit.
Is the resistance below 5.0 ohms?All
Ye s®Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
No®Repair the Halo Lamp Driver Circuit for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
640
INTERIOR LIGHTING

Symptom:
READING LAMP OUTPUT SHORT
When Monitored and Set Condition:
READING LAMP OUTPUT SHORT
When Monitored: Anytime the Body Control Module is active.
Set Condition: When output voltage status is LOW.
POSSIBLE CAUSES
READING LAMPS DRIVER CIRCUIT SHORT
COURTESY LAMPS DRIVER READING LAMPS CIRCUIT SHORT TO GROUND
BODY CONTROL MODULE
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, clear all BCM DTC's.
Turn the reading lamps on.
With the DRBIIIt, read the DTC information.
Does then DRBIIItdisplay : Reading Lamps Output Short?All
Ye s®Go To 2
No®Repair the Reading Lamps Driver Circuit for a short condition.
Perform BODY VERIFICATION TEST - VER 1.
2 Turn the ignition off.
Disconnect the Body Control Module C2 harness connector
Measure the resistance of the Courtesy Lamps Driver Reading Lamps Circuit.
Is the resistance below 5.0 ohms?All
Ye s®Repair the Courtesy Lamps Driver Reading Lamps Circuit for a
short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No®Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
641
INTERIOR LIGHTING