Chrysler Pacifica. Manual — part 116

Symptom:

LEFT FOG LAMP OPEN-IPM

When Monitored and Set Condition:

LEFT 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

LEFT FRONT FOG LAMP

LEFT FRONT FOG LAMP DRIVER OPEN

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: Left Fog Lamp Open?

All

Yes

→ Go To 2

No

→ Go To 5

2

Turn the ignition off.
Disconnect the Left 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 Left Front Fog Lamp.
Disconnect the IPM C5 harness connector.
Measure the resistance of the Left Front Fog Lamp Driver circuit.
Is the resistance below 10.0 ohms?

All

Yes

→ Go To 4

No

→ Repair the Left Front Fog Lamp Driver circuit for an open.

Perform BODY VERIFICATION TEST - VER 1.

461

EXTERIOR LIGHTING

TEST

ACTION

APPLICABILITY

4

Turn the ignition off.
Disconnect the Left Front Fog Lamp harness connector.
Using a 12-volt test light connected to ground, check the Left Front Fog Lamp Driver
circuit in the Left 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 Left 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.

462

EXTERIOR LIGHTING

LEFT FOG LAMP OPEN-IPM —

Continued

Symptom:

LEFT FRONT FOG SHORT TO GROUND-IPM

When Monitored and Set Condition:

LEFT FRONT FOG 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

LEFT FRONT FOG LAMP

LEFT FRONT FOG 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 Fog 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 Fog Lamp.
Disconnect the Intelligent Power Module C5 harness connector.
Measure the resistance between Ground and the Left Fog Lamp Driver circuit.
Is the resistance below 100.0 ohms?

All

Yes

→ Repair the Left Front Fog Lamp Driver circuit for a short to

ground.
Perform BODY VERIFICATION TEST - VER 1.

No

→ Go To 4

463

EXTERIOR LIGHTING

TEST

ACTION

APPLICABILITY

4

Turn the ignition off.
Turn the Fog Lamps off.
Install a substitute Fog Lamp Bulb in place of the Left Fog Lamp Bulb.
Turn the ignition on.
With the DRBIII

t, erase the IPM DTC’s.

Turn the Fog 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 Front Fog Lamp Bulb.

Perform BODY VERIFICATION TEST - VER 1.

5

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

464

EXTERIOR LIGHTING

LEFT FRONT FOG SHORT TO GROUND-IPM —

Continued