Chrysler Pacifica. Manual — part 129
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Turn the Headlamps off.
Install a substitute Headlamp Bulb in place of the Right High Beam Headlamp Bulb.
Turn the ignition on.
With the DRBIII
t, erase the IPM DTC’s.
Turn the headlamps on.
Switch the headlamps between high beam and low beam several times, pausing for
5 seconds in each position.
With the DRBIII
t, read IPM DTC’s.
Does the DRBIII
t display this DTC?
All
Yes
→ Go To 5
No
→ Replace the original Right High Beam Headlamp Bulb.
Perform BODY VERIFICATION TEST - VER 1.
5
Turn the ignition off.
Inspect the wiring and connectors associated with the Right High Beam 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.
513
EXTERIOR LIGHTING
RIGHT HEADLAMP HIGH BEAM SHORT TO GROUND-IPM —
Continued
Symptom:
RIGHT HEADLAMP LOW BEAM OPEN-IPM
When Monitored and Set Condition:
RIGHT HEADLAMP LOW BEAM OPEN-IPM
When Monitored:
Output is OFF.
Set Condition:
The IPM detects an open fault condition. Time to set is 5 seconds.
POSSIBLE CAUSES
GROUND CIRCUIT OPEN
INTEGRATED POWER MODULE
RIGHT HEADLAMP
RIGHT LOW BEAM DRIVER CIRCUIT OPEN
WIRING HARNESS INSPECTION
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, erase the IPM DTC’s.
Turn the headlamps on.
Switch the headlamps between high beam and low beam several times, pausing for
5 seconds in each position.
With the DRB, read the IPM DTC’s.
Does the DRBIII
t read: Right Headlamp Low Beam Open?
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
514
EXTERIOR LIGHTING
TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Disconnect the Right Headlamp 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 4
No
→ Repair the Ground circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
4
Turn the ignition off.
Disconnect the right Headlamp.
Disconnect the IPM C5 harness connector.
Measure the resistance of the Right Low Beam Driver circuit.
Is the resistance below 10.0 ohms?
All
Yes
→ Go To 5
No
→ Repair the Right Low Beam Driver circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
5
Turn the ignition off.
Disconnect the Right Headlamp harness connector.
Using a 12-volt test light connected to ground, check the Right Low Beam Driver
circuit in the Right Headlamp harness connector.
NOTE: The test light must illuminate brightly. Compare the brightness to
that of a direct connection to the battery.
Turn the low beam headlamps on.
Does the test light illuminate brightly?
All
Yes
→ Replace the Right Headlamp Bulb.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Integrated Power Module.
Perform BODY VERIFICATION TEST - VER 1.
515
EXTERIOR LIGHTING
RIGHT HEADLAMP LOW BEAM OPEN-IPM —
Continued
Symptom:
RIGHT HEADLAMP LOW BEAM SHORT TO GROUND-IPM
When Monitored and Set Condition:
RIGHT HEADLAMP LOW BEAM 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
RIGHT HEADLAMP
RIGHT LOW BEAM DRIVER CIRCUIT SHORTED 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 headlamps on.
Switch the headlamps between high beam and low beam several times, pausing for
5 seconds in each position.
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 Right Headlamp.
Disconnect the Intelligent Power Module C5 harness connector.
Measure the resistance between Ground and the Right Low Beam Driver circuit.
Is the resistance below 100.0 ohms?
All
Yes
→ Repair the Right Low Beam Driver circuit for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 4
516
EXTERIOR LIGHTING
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