Left Headlamp High Beam Open-IPM

LEFT HEADLAMP HIGH BEAM 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 5 seconds.





Diagnostic Test

1. VERIFY CONDITION
Turn the ignition on.
With the scan tool, erase the IPM DTC's.
Turn the headlamps on.
Switch the headlamps between high beam and low beam several times, pausing for 5 seconds in each position.
With the scan tool, read the IPM DTC's.
Does the scan tool read: Left Headlamp High Beam Open?

Yes

- Go To2

No

- Go To5

2. (Z102) GROUND CIRCUIT OPEN
Turn the ignition off.
Disconnect the Left Headlamp harness connector.
Using a 12-volt test light connected to 12-volts, check the (Z102) 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 (Z102) Ground circuit for an open.
- Perform BODY VERIFICATION TEST - VER 1.Body Verification Test

3. L37) LEFT HIGH BEAM DRIVER CIRCUIT OPEN
Turn the ignition off.
Disconnect the Left Headlamp.
Disconnect the IPM C5 harness connector.
Measure the resistance of the (L37) Left High Beam Driver circuit.
Is the resistance below 10.0 ohms?

Yes

- Go To4

No

- Repair the (L37) Left High Beam Driver circuit for an open.
- Perform BODY VERIFICATION TEST - VER 1.Body Verification Test

4. LEFT HIGH BEAM HEADLAMP
Turn the ignition off.
Disconnect the Left Headlamp harness connector.
Using a 12-volt test light connected to ground, check the Left High Beam Driver circuit in the Left Headlamp harness connector.

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

Turn the High Beam headlamps on.
Does the test light illuminate brightly?

Yes

- Replace the Left High Beam Headlamp 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.