1

Did you perform the retained accessory power (RAP) diagnostic system check?

Go to Step 2

Go to Diagnostic System Check - Retained Accessory Power

Test the following circuits of the BCM for an open or a short to ground:

Refer to the following:

Did you find and correct condition?

System OK

Go to Step 3

1. Connect a scan tool.
2. With the scan tool, observe all door jamb switches.
3. Open and close each door.

Does the scan tool display change from active to inactive?

Go to Step 4

Go to Diagnostic System Check - Lighting Systems in Lighting Systems

1. With all doors closed, turn the ignition ON with the engine OFF.
2. Turn the ignition OFF.

Do the Radio and Power Windows operate during the 10 minute RAP time period?

Go to Step 11

Go to Step 5

Test for a battery voltage supply, before the ACC relay contacts. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Is battery voltage present?

Go to Step 7

Go to Step 6

Locate and repair the supply voltage malfunction to the ACC relay. Refer to Testing for a Short to Voltage in Wiring Systems.

Was there a inactive supply circuit to the BCM and did you repair it?

Go to Step 11

Go to Step 9

With RAP power mode enabled, test for a battery voltage supply output, after the ACC relay. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you locate and repair the fault?

Go to Step 11

Go to Step 8

Replace the ACC relay.

Is the replacement complete?

Go to Step 11

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Inspect for poor connections or terminal damage at the BCM. 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 BCM. Refer to Body Control Module Replacement in Body Control System.

Did you complete the replacement?

Go to Step 11

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Enable RAP power mode to verify the repair.

Did you correct the condition?

System OK

Go to Step 2