For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
1 | Did you perform the Lighting Systems Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Lighting Systems
2 |

1. Place the headlamp switch in the OFF position.
2. Turn ON the ignition, with the engine OFF.
3. Observe the high beam indicator on the instrument cluster.

Does the indicator illuminate during the bulb check?

Go to Step 3

Go to Step 6

3 |

1. Place the headlamp switch in the HEAD position.
2. Turn the high beams on.
3. Observe the high beam indicator.

Does the indicator illuminate?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 5

5 | Test the high beam signal circuit (1200) between the headlamp switch 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? | System OK | Go to Step 7
6 | Replace the instrument cluster (IPC). Refe Instrument Cluster Replacement . Did you complete the repair? | System OK | --
7 | Inspect for poor connections at the harness connector of the BCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | System OK | Go to Step 8
8 |

Important: Perform the set up procedure for the body control module.

1. Refer to Body Control Module (BCM) Programming/RPO Configuration .
2. Replace the body control module. Refer to Body Control Module Replacement in Body Control System.

Did you complete the replacement?

System OK

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