1

Did you perform the Lighting Systems Diagnostic System Check?

Go to Step 2

Go to A Diagnostic System Check - Lighting Systems

Test the high beam signal circuit between the body control module and the inverter module for a short to ground.

Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

System OK

Go to Step 3

1. Disconnect the BCM connector C2.
2. Turn the high beam headlamps on.
3. Backprobe the inverter module to test for ground at terminal E (Do not disconnect the inverter module). Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Is ground present at the terminal?

Go to Step 4

Go to Step 5

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 6

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Replace the inverter module.

Did you complete the replacement?

Go to Step 6

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2