Did you perform the Lighting Systems Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Lighting Systems

1. Install a scan tool.
2. Turn ON the ignition, with the engine OFF.
3. With a scan tool, observe the reverse relay status.

Does the scan tool display OFF status?

Go to Step 3

Go to Step 6

1. Turn OFF the ignition.
2. Disconnect the reverse relay.
3. Turn ON the ignition, with the engine OFF.

Did the backup lamps turn OFF?

Go to Step 4

Go to Step 8

Connect a test lamp between the control circuit of the reverse relay and the coil side feed circuit of the reverse relay.

Does the test lamp illuminate?

Go to Step 5

Go to Step 9

Test the control circuit of the reverse relay for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 11

Go to Step 6

Inspect for poor connections at the rear integration module (RIM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 11

Go to Step 7

Replace the rear integration module (RIM). Refer to Rear Integration Body Control Module Replacement in Body Control System.

Did you complete the replacement?

Go to Step 11

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Repair the short to power in the backup lamp power feed circuit. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 11

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Inspect for poor connections at the reverse relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 11

Go to Step 10

Replace the reverse relay.

Did you complete the replacement?

Go to Step 11

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Operate the system in order to verify the repair.

Did you find and correct the condition?

System OK

Go to Step 2