Chrysler Pacifica. Manual — part 124
Symptom:
LICENSE PLATE LAMP OUTPUT SHORT TO GROUND-IPM
When Monitored and Set Condition:
LICENSE PLATE LAMP OUTPUT SHORT TO GROUND-IPM
When Monitored:
Output is ON.
Set Condition:
The IPM detects a short fault condition. Time to set is 1 second.
POSSIBLE CAUSES
INTEGRATED POWER MODULE
LICENSE PLATE LAMP
LICENSE PLATE LAMP DRIVER SHORT TO GROUND
WIRING PROBLEM
WIRING HARNESS INSPECTION
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, clear the IPM DTC’s.
Turn the License Plate Lamp on.
With the DRBIII
t, read IPM DTC’s.
Is this DTC present?
All
Yes
→ Go To 3
No
→ Go To 2
2
Turn the ignition off.
NOTE: Visually inspect the related wiring harness and circuits. Look for
any chafed, pierced, pinched, or partially broken wires.
NOTE: Visually inspect the related wiring harness connectors. Look for
broken, bent, pushed out, or corroded terminals.
NOTE: Refer to any Technical Service Bulletins (TSB) that may apply.
Were any problems found?
All
Yes
→ Repair as necessary.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 3
3
Turn the ignition off.
Disconnect the License Plate Lamp.
Disconnect the Intelligent Power Module C9 harness connector.
Measure the resistance between Ground and the License Plate Lamp Driver circuit.
Is the resistance below 100.0 ohms?
All
Yes
→ Repair the License Plate Lamp Driver circuit for a short to
ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 4
493
EXTERIOR LIGHTING
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Turn the License Plate Lamp off.
Install a substitute License Plate Lamp Bulb in place of the License Plate Lamp
Bulb.
Turn the ignition on.
With the DRBIII
t, erase the IPM DTC’s.
Turn the License Plate Lamp on.
With the DRBIII
t, read IPM DTC’s.
Does the DRBIII
t display this DTC?
All
Yes
→ Go To 5
No
→ Replace the original License Plate Lamp Bulb.
Perform BODY VERIFICATION TEST - VER 1.
5
Turn the ignition off.
Inspect the wiring and connectors associated with the License Plate Lamp Driver
circuit.
Were any problems found?
All
Yes
→ Repair as necessary.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Integrated Power Module.
Perform BODY VERIFICATION TEST - VER 1.
494
EXTERIOR LIGHTING
LICENSE PLATE LAMP OUTPUT SHORT TO GROUND-IPM —
Continued
Symptom:
RIGHT FOG LAMP OPEN-IPM
When Monitored and Set Condition:
RIGHT FOG LAMP OPEN-IPM
When Monitored:
Output is OFF.
Set Condition:
The IPM detects an open fault condition. Time to set is 1 second.
POSSIBLE CAUSES
GROUND CIRCUIT OPEN
INTEGRATED POWER MODULE
RIGHT FOG LAMP DRIVER OPEN
RIGHT FRONT FOG LAMP
WIRING HARNESS INSPECTION
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, erase the IPM DTC’s.
Turn the Fog Lamps on.
With the DRB, read the IPM DTC’s.
Does the DRBIII
t read: Right Fog Lamp Open?
All
Yes
→ Go To 2
No
→ Go To 5
2
Turn the ignition off.
Disconnect the Right Front Fog Lamp harness connector.
Using a 12-volt test light connected to 12-volts, check the Ground circuit.
NOTE: The test light must illuminate brightly. Compare the brightness to
that of a direct connection to the battery.
Does the test light illuminate brightly?
All
Yes
→ Go To 3
No
→ Repair the Ground circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
3
Turn the ignition off.
Disconnect the Right Front Fog Lamp.
Disconnect the IPM C5 harness connector.
Measure the resistance of the Right Front Fog Lamp Driver circuit.
Is the resistance below 10.0 ohms?
All
Yes
→ Go To 4
No
→ Repair the Right Fog Lamp Driver circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
495
EXTERIOR LIGHTING
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Disconnect the Right Front Fog Lamp harness connector.
Using a 12-volt test light connected to ground, check the Right Front Fog Lamp
Driver circuit in the Right Front Fog Lamp harness connector.
NOTE: The test light must illuminate brightly. Compare the brightness to
that of a direct connection to the battery.
Turn the Fog Lamps on.
Does the test light illuminate brightly?
All
Yes
→ Replace the Right Front Fog Lamp Bulb.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Integrated Power Module.
Perform BODY VERIFICATION TEST - VER 1.
5
Turn the ignition off.
NOTE: Visually inspect the related wiring harness and circuits. Look for
any chafed, pierced, pinched, or partially broken wires.
NOTE: Visually inspect the related wiring harness connectors. Look for
broken, bent, pushed out, or corroded terminals.
NOTE: Refer to any Technical Service Bulletins (TSB) that may apply.
Were any problems found?
All
Yes
→ Repair as necessary.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Test Complete.
496
EXTERIOR LIGHTING
RIGHT FOG LAMP OPEN-IPM —
Continued
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