GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Retained Accessory Power (RAP) System Check?

--

Go to Step 2

Go to Retained Accessory Power (RAP) System Check

2

Verify the fault is present.

Does the system operate normally?

--

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

Go to Step 3

3

  1. Turn the ignition switch to the LOCK position.
  2. Disconnect the RAP relay.
  3. Inspect the power windows, and the radio for correct operation.

Do the radio and the power windows operate?

--

Go to Step 4

Go to Step 5

4

Repair the short to battery in the power windows and the radio feed circuit. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Step 9

--

5

  1. Open one of the car doors.
  2. Remove the ignition key.
  3. Using a test lamp connected to a battery, probe the RAP relay control circuit.

Does the test lamp illuminate?

--

Go to Step 7

Go to Step 6

6

Replace the RAP relay.

Did you complete the repair?

--

Go to Step 9

--

7

Test the RAP relay control circuit 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 9

Go to Step 8

8

  1. Replace the body control module. Refer to Body Control Module Replacement in Body Control System.
  2. Perform the set up procedure for the new body control module. Refer to Body Control Module (BCM) Programming/RPO Configuration in Body Control System.

Did you complete the replacement and the set up procedure?

--

Go to Step 9

--

9

Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Go to Step 2