Circuit/System Testing
- Ensure no headlamp related DTCs are set and the headlamps otherwise function as expected. Refer to Headlamps Malfunction and return to this step if the headlamps have no other faults.
- Vehicle OFF, disconnect the X1 connector at the K219 Lighting Control Module and the connector at the affected headlamp assembly. If both headlamps are inoperative, choose either headlamp to perform testing.
- Test for less than 10 Ω between the K219 Lighting Control Module X1 terminal 6 and terminal 10 at the headlamp assembly connector.
- If 10 Ω or greater
- If both headlamps are inoperative: Repair the open/high resistance in the circuit 11369 between the K219 lighting control module and the circuit splice.
- If only one headlamp is inoperative: Repair the open/high resistance in the circuit 11369 between the headlamp and the circuit splice.
- Go to next step: If less than 10 Ω
- Inspect both harness and component connectors for contamination, corrosion, and terminal tension. Repair as necessary
- Reconnect the harness connectors at the K219 lighting control module and the headlamp. Verify all connectors/terminals are fully seated.
- Perform the Circuit/System Verification.
- Are the headlamp charge status indicators operating.
- If the BOTH headlamp charge status indicators are still not operating properly
K219 Lighting Control Module - Replace
- Go to next step: If ONE headlamp charge status indicator is still not operating properly
- If the BOTH headlamp charge status indicators are still not operating properly
- Headlamp - Replace
- Go to next step: If the headlamp charge status indicators are now operating properly
- Are the headlamp charge status indicators operating.
- All OK.