Left Front Side Marker Lamp Open-IPM

LEFT FRONT SIDE MARKER LAMP OPEN-IPM

For a complete wiring diagram Consult Diagrams/Electrical

- When Monitored:
Output is OFF.

- Set Condition:
The IPM detects an open fault condition. Time to set is 1 second.





Diagnostic Test

1. VERIFY CONDITION
Turn the ignition on.
With the scan tool, erase the IPM DTC's.
Turn the Side Marker Lamps on.
With the scan tool, read the IPM DTC's.
Does the scan tool read: Left Front Side Marker Lamp Open?

Yes

- Go To2

No

- Go To5

2. (Z377) GROUND CIRCUIT OPEN




Turn the ignition off.
Disconnect the Left Front Side Marker Lamp harness connector.
Using a 12-volt test light connected to 12-volts, check the (Z377) 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?

Yes

- Go To3

No

- Repair the (Z377) Ground circuit for an open.
- Perform BODY VERIFICATION TEST - VER 1.Body Verification Test

3. (L77) LEFT FRONT SIDE MARKER LAMP DRIVER CIRCUIT OPEN




Turn the ignition off.
Disconnect the Left Front Side Marker Lamp.
Disconnect the IPM C5 harness connector.
Measure the resistance of the (L77) Left Front Side Marker Lamp Driver circuit.
Is the resistance below 10.0 ohms?

Yes

- Go To4

No

- Repair the (L77) Left Front Side Marker Lamp Driver circuit for an open.
- Perform BODY VERIFICATION TEST - VER 1.Body Verification Test

4. LEFT FRONT SIDE MARKER LAMP
Turn the ignition off.
Disconnect the Left Front Side Marker Lamp harness connector.
Using a 12-volt test light connected to ground, check the (L77) Left Front Side Marker Lamp Driver circuit in the Left Front Side Marker Lamp harness connector.

NOTE: The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery.

Turn the Side Marker Lamps on.
Does the test light illuminate brightly?

Yes

- Replace the Left Front Side Marker Lamp Bulb.
- Perform BODY VERIFICATION TEST - VER 1.Body Verification Test

No

- Replace the Integrated Power Module.
- Perform BODY VERIFICATION TEST - VER 1.Body Verification Test

5. INTERMITTENT WIRING PROBLEM
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: Search for any Technical Service Bulletins (TSB) that may apply.

Were any problems found?

Yes

- Repair as necessary.
- Perform BODY VERIFICATION TEST - VER 1.Body Verification Test

No

- Test Complete.