License Plate Lamp Output Open-IPM

LICENSE PLATE LAMP OUTPUT 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 License Plate Lamp on.
With the scan tool, read the IPM DTC's.
Does the scan tool read: License Plate Lamp Output Open?

Yes

- Go To2

No

- Go To5

2. GROUND CIRCUIT OPEN
Turn the ignition off.
Disconnect the License Plate 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?

Yes

- Go To3

No

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

3. LICENSE PLATE LAMP DRIVER CIRCUIT OPEN
Turn the ignition off.
Disconnect the License Plate Lamp.
Disconnect the IPM C9 harness connector.
Measure the resistance of the (L3) License Plate Lamp Driver circuit.
Is the resistance below 10.0 ohms?

Yes

- Go To4

No

- Repair the (L3) License Plate Lamp Driver circuit for an open.
- Perform BODY VERIFICATION TEST - VER 1.Body Verification Test

4. LICENSE PLATE LAMP
Turn the ignition off.
Disconnect the License Plate Lamp harness connector.
Using a 12-volt test light connected to ground, check the (L3) License Plate Lamp Driver circuit in the License Plate Lamp harness connector.

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

Turn the License Plate Lamp on.
Does the test light illuminate brightly?

Yes

- Replace the License Plate 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.