Chrysler Pacifica. Manual — part 122

TEST

ACTION

APPLICABILITY

4

Turn the ignition off.
Disconnect the Left Rear Park Lamp harness connector.
Using a 12-volt test light connected to ground, check the Left Tail Lamp Driver
circuit in the Left Rear Park Lamp harness connector.
NOTE: The test light must illuminate brightly. Compare the brightness to
that of a direct connection to the battery.
Turn the Park Lamps on.
Does the test light illuminate brightly?

All

Yes

→ Replace the Left Rear Park 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.

485

EXTERIOR LIGHTING

LEFT REAR PARK/MARKER LAMP OPEN-IPM —

Continued

Symptom:

LEFT REAR PARK/MARKER LAMP SHORT TO GROUND-IPM

When Monitored and Set Condition:

LEFT REAR PARK/MARKER LAMP SHORT TO GROUND-IPM

When Monitored:

The output is ON.

Set Condition:

The IPM detects a short fault condition. Time to set is 1 second.

POSSIBLE CAUSES

INTEGRATED POWER MODULE

LEFT REAR PARK/MARKER LAMPS

LEFT TAIL 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 Park Lamps 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 Left Rear Park/Marker Lamp.
Disconnect the Intelligent Power Module C9 harness connector.
Measure the resistance between Ground and the Left Tail Lamp Driver circuit.
Is the resistance below 100.0 ohms?

All

Yes

→ Repair the Left Rear Tail Lamp Driver circuit for a short to

ground.
Perform BODY VERIFICATION TEST - VER 1.

No

→ Go To 4

486

EXTERIOR LIGHTING

TEST

ACTION

APPLICABILITY

4

Turn the ignition off.
Turn the Park Lamps off.
Install substitute Park/Marker Lamp Bulbs in place of the Left Rear Park/Marker
Lamp Bulbs.
Turn the ignition on.
With the DRBIII

t, erase the IPM DTC’s.

Turn the Park Lamps 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 Left Rear Park/Marker Lamp Bulbs.

Perform BODY VERIFICATION TEST - VER 1.

5

Turn the ignition off.
Inspect the wiring and connectors associated with the Left Tail 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.

487

EXTERIOR LIGHTING

LEFT REAR PARK/MARKER LAMP SHORT TO GROUND-IPM —

Continued

Symptom:

LEFT REAR TURN SIGNAL OUTPUT OPEN-BCM

POSSIBLE CAUSES

INTERMITTENT CONDITION

GROUND CIRCUIT OPEN

TURN SIGNAL LAMP OPEN

LEFT REAR TURN SIGNAL LAMP DRIVER CIRCUIT OPEN

BODY CONTROL MODULE

TEST

ACTION

APPLICABILITY

1

Turn the ignition on.
With the DRBIII

t, clear all BCM DTC’s.

Actuate the Turn Signals.
With the DRBIII

t, read the DTC information.

Does the DRBIII

t read: Left Rear Turn Signal Output 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 Left Rear Turn Signal harness connector.
Using a 12-volt test light connected to 12-volts, check the ground circuit.
Does the test light illuminate brightly?

All

Yes

→ Go To 3

No

→ Repair the Ground Circuit.

Perform BODY VERIFICATION TEST - VER 1.

3

Turn the ignition off.
Disconnect the Left Rear Turn Signal Lamp connector.
Turn the ignition on.
Turn the Left Turn Signal on.
Using a 12-volt test light connected to ground, check the Left Rear Turn Signal
Output circuit.
Does the test light illuminate brightly?

All

Yes

→ Replace the Turn Signal Lamp.

Perform BODY VERIFICATION TEST - VER 1.

No

→ Go To 4

488

EXTERIOR LIGHTING