GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Corvette 🢒 Body and Accessories 🢒 Retained Accessory Power 🢒 Retained Accessory Power (RAP) Inoperative

Diagnostic Aids

All Retained Accessory Power (RAP) functions on this vehicle are controlled by the Body Control Module (BCM) using Class 2 serial data. If Class 2 communication between the Radio, BCM and Data Link Connector is functioning properly, and the door ajar switches are working properly, replace the BCM.

Step

Action

Yes

No

Schematic Reference: Retained Accessory Power (RAP) Schematics

1

Did you perform a Diagnostic System Check - Retained Accessory Power?

Go to Step 2

Go to Diagnostic System Check - Retained Accessory Power

2

Verify that the doors are closed and perform the following:

  1. Turn ON the ignition, engine OFF for 5 seconds.
  2. Turn OFF the ignition.

Do the RAP functions operate normally?

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

Go to Step 3

3
  1. Install a scan tool.
  2. Verify the doors are closed.
  3. With the scan tool, verify the Driver Door Ajar and Passenger Door Ajar switch inputs indicate Closed.

Do both switch inputs indicate Closed?

Go to Step 4

Go to Door Ajar Indicator Inoperative in Doors

4

Important:: Perform the set up procedure for the control module after replacement if needed.

Replace the Body Control Module. Refer to Body Control Module Replacement .

Did you complete the replacement?

System OK

--