Step | Action | Yes | No |
|---|---|---|---|
1 | Did you perform the Lighting Systems Diagnostic System Check? | Go to Step 2 | Go to A Diagnostic System Check - Lighting Systems |
2 |
Does the indicator illuminate during the bulb check? | Go to Step 3 | Go to Step 7 |
3 |
Does the indicator illuminate? | Go to Testing for Intermittent and Poor Connections in Wiring Systems | Go to Step 5 |
5 | Test the high beam signal circuit between the headlamp switch and the inverter module for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 12 | Go to Step 6 |
6 | Test the high beam signal circuit between the inverter module and the body control module (BCM) for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 12 | Go to Step 8 |
7 | Replace the instrument cluster (IPC). Refer to IP Cluster Replacement in Instrument Panel, Gauges and Console. Did you complete the repair? | Go to Step 12 | -- |
8 | Inspect for poor connections at the harness connectors of the BCM and the inverter module. Refer to Testing for Intermittent and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 12 | Go to Step 9 |
9 |
Does the high beam indicator illuminate and remain on? | Go to Step 10 | Go to Step 11 |
10 | Replace the inverter module. Did you complete the replacement? | Go to Step 12 | -- |
11 | Replace the BCM. Refer to Body Control Module Replacement in Body Control System. Important: Perform the setup procedure for the BCM. Refer to BCM Programming/RPO Configuration in Body Control System. Did you complete the replacement? | Go to Step 12 | -- |
12 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
