Left Rear Park/Marker Lamp Short To Ground-IPM

LEFT REAR PARK/MARKER LAMP SHORT TO GROUND-IPM

For a complete wiring diagram Consult Diagrams/Electrical

- When Monitored:
The output is ON.

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





Diagnostic Test

1. VERIFY CONDITION
Turn the ignition on.
With the scan tool, clear the IPM DTC's.
Turn the Park Lamps on.
With the scan tool, read IPM DTC's.
Is this DTC present?

Yes

- Go To3

No

- Go To2

2. 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

- Go To3

3. (L71) LEFT TAIL LAMP DRIVER SHORT TO GROUND
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 (L71) Left Tail Lamp Driver circuit.
Is the resistance below 100.0 ohms?

Yes

- Repair the (L71) Left Rear Tail Lamp Driver circuit for a short to ground.
- Perform BODY VERIFICATION TEST - VER 1.Body Verification Test

No

- Go To4

4. LEFT REAR PARK/MARKER LAMPS
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 scan tool, erase the IPM DTC's.
Turn the Park Lamps on.
With the scan tool, read IPM DTC's.
Does the scan tool display this DTC?

Yes

- Go To5

No

- Replace the original Left Rear Park/Marker Lamp Bulbs.
- Perform BODY VERIFICATION TEST - VER 1.Body Verification Test

5. WIRING PROBLEM
Turn the ignition off.
Inspect the wiring and connectors associated with the (L71) Left Tail Lamp Driver circuit.
Were any problems found?

Yes

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

No

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