Chrysler Pacifica. Manual — part 184
Symptom:
DOME SWITCH INPUT OPEN-BCM
POSSIBLE CAUSES
INTERMITTENT CONDITION
PANEL LAMPS DIMMER SIGNAL CIRCUIT OPEN
BODY CONTROL MODULE
HEADLAMP SWITCH
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, clear all BCM DTC’s.
Turn the Dome Lamps on.
With the DRBIII
t, read the DTC information.
Does the DRBIII
t display: Dome Switch Input Open?
All
Yes
→ Go To 2
No
→ The condition that caused the symptom is currently not present.
Inspect the related wiring for a possible intermittent condition.
Look for any chafed, pierced, pinched, or partially broken wires.
Perform BODY VERIFICATION TEST - VER 1.
2
Turn the ignition off.
Disconnect the Body Control Module C5 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
Yes
→ 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 Body Control Module C5 harness connector.
Measure the voltage of the Panel Lamps Dimmer Signal circuit.
Is the voltage below 4.8 volts?
All
Yes
→ Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Headlamp Switch.
Perform BODY VERIFICATION TEST - VER 1.
733
INTERIOR LIGHTING
Symptom:
DOME SWITCH INPUT SHORT-BCM
POSSIBLE CAUSES
INTERMITTENT CONDITION
PANEL LAMPS DIMMER SIGNAL CIRCUIT SHORT TO GROUND
HEADLAMP SWITCH
BODY CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, clear all BCM DTC’s.
Turn the Dome Lamps on.
With the DRBIII
t, read the DTC information.
Does the DRBIII
t display: Dome Switch Input Short?
All
Yes
→ Go To 2
No
→ The condition that caused the symptom is currently not present.
Inspect the related wiring for a possible intermittent condition.
Look for any chafed, pierced, pinched, or partially broken wires.
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
Yes
→ 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.
Measure the resistance of the Panel Lamps Dimmer Signal Circuit and the
Headlamp Switch MUX Return Circuit to ground.
Is the resistance below 1000 ohms?
All
Yes
→ Replace the Headlamp Switch.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
734
INTERIOR LIGHTING
Symptom:
READING LAMP OUTPUT SHORT-BCM
POSSIBLE CAUSES
INTERMITTENT CONDITION
READING LAMPS DRIVER CIRCUIT SHORT
BODY CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, clear all BCM DTC’s.
Turn the Reading Lamps on.
With the DRBIII
t, read the DTC information.
Does the DRBIII
t display: Reading Lamp Output Short?
All
Yes
→ Go To 2
No
→ The condition that caused the symptom is currently not present.
Inspect the related wiring for a possible intermittent condition.
Look for any chafed, pierced, pinched, or partially broken wires.
Perform BODY VERIFICATION TEST - VER 1.
2
Turn the ignition off.
Disconnect the BCM C3 harness connector.
Turn the reading lamps on.
Does the DTC reset?
All
Yes
→ Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Repair the Reading Lamps Driver Circuit for a short condition.
Perform BODY VERIFICATION TEST - VER 1.
735
INTERIOR LIGHTING
Symptom:
SEAT SWITCH ILLUMINATION OUTPUT SHORT TO BATTERY -
DDM
When Monitored and Set Condition:
SEAT SWITCH ILLUMINATION OUTPUT SHORT TO BATTERY - DDM
When Monitored:
No Accessory power, ignition switch off and accessory power delay
removed.
Set Condition:
If the Illumination Driver circuit is shorted to battery over 10 seconds.
POSSIBLE CAUSES
DTC PRESENT
POWER SEAT SWITCH
DRIVER DOOR SWITCH ILLUMINATION DRIVER SHORT TO BATTERY
DRIVER DOOR MODULE
TEST
ACTION
APPLICABILITY
1
With the DRBIII
t, erase DTCs.
Cycle the ignition switch Off, On and back Off. Open the door (to cancel accessory
power delay).
With the DRBIII
t, read DTCs.
Did the same DTC return?
All
Yes
→ Go To 2
No
→ The conditions required to set the code are currently not present.
Using the wiring diagram/schematic as a guide, inspect the
wiring and connectors.
2
Turn the ignition off.
Disconnect the power seat switch connector.
Turn the ignition on.
Using the DRBIII
t, erase DTC’s.
Cycle the ignition switch back Off and open the door.
With the DRBIII
t, read DTC’s.
Did the same DTC return?
All
Yes
→ Go To 3
No
→ Replace the power seat switch.
3
Turn the ignition off.
Disconnect the Power Seat Switch connector.
Turn the ignition on.
Measure the voltage of the Driver Door Switch Illumination Driver circuit.
Is the voltage above 1.0 volts?
All
Yes
→ Repair the Driver Door Switch Illumination Driver circuit for a
short to voltage.
No
→ Replace the Driver Door Module.
736
INTERIOR LIGHTING
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