GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 1999 🢒 Grand Prix 🢒 Body and Accessories 🢒 Retained Accessory Power 🢒 Retained Accessory Power (RAP) Inoperative

Step

Action

Value(s)

Yes

No

The following components are inoperative at all times, even with the ignition switch in the RUN position:

    • The radio
    • The power windows
    • The power mirrors
    • The power sunroof (if equipped)

Or the following components operate when the ignition switch is in RUN, but do not operate for 10 minutes after the ignition switch is turned to the OFF or the ACC position with all of the vehicle doors closed:

    • The radio
    • The power windows
    • The power mirrors
    • The power sunroof (if equipped)

1

Was the RAP System Check performed?

--

Go to Step 2

Go to Retained Accessory Power (RAP) System Check

2

Are all components inoperative even when the ignition switch is in the RUN position?

--

Go to Step 3

Go to Step 4

3

Was the BCM Diagnostic System Check performed?

--

Go to Step 5

Go to Diagnostic System Check - Body Control System in Body Control System

4

Was the BCM Diagnostic System Check performed?

--

Go to Step 25

Go to Diagnostic System Check - Body Control System in Body Control System

5

Inspect the RAP Fuse located in the fuse block.

Is the RAP Fuse open?

--

Go to Step 6

Go to Step 7

6
  1. Replace the RAP Fuse.
  2. Inspect the RAP Fuse again.

Is the RAP Fuse open again?

--

Go to Step 15

Go to Step 7

7

Inspect the IGN MAIN 2 MaxiFuse® located in the underhood accessory wiring junction block.

Is the IGN MAIN 2 MaxiFuse® open?

--

Go to Step 8

Go to Step 9

8
  1. Replace the IGN MAIN 2 MaxiFuse®.
  2. Inspect the IGN MAIN 2 MaxiFuse® again.

Is the IGN MAIN 2 MaxiFuse® open again?

--

Go to Step 16

Go to Step 9

9
  1. Disconnect the RAP relay.
  2. Connect a test light between the RAP relay harness connector terminal C2 and ground.

Did the test light illuminate?

--

Go to Step 10

Go to Step 17

10

Connect a test light between the RAP relay harness connector terminal A2 and ground.

Did the test light illuminate?

--

Go to Step 11

Go to Step 18

11

Connect a 40A fused jumper between the RAP relay harness connector terminal A2 and terminal C1.

Does the fused jumper open upon connecting the fused jumper?

--

Go to Step 19

Go to Step 12

12

Test the operation of the radio and the power windows.

Do the radio and the power windows operate?

--

Go to Step 13

Go to Step 20

13
  1. Remove the 40A fused jumper from between the RAP relay harness connector terminal A2 and terminal C1.
  2. Disconnect the Body Control Module (BCM) connector C2.
  3. Use a DMM in order to measure the resistance between the following terminals:
    4. • The BCM harness connector C2 terminal D9
    • The RAP harness connector terminal A1

Is the resistance within the specified range?

Less than 2ohms

Go to Step 14

Go to Step 21

14
  1. Reconnect the RAP relay.
  2. Connect a 10A fused jumper between the BCM harness connector C2 terminal D9 and ground.
  3. Test the operation of the radio and the power windows.

Do the radio and the power windows operate?

--

Go to Step 22

Go to Step 23

15

Repair the short to ground in circuit 540.

Is the repair complete?

--

Go to Step 24

--

16

Repair the short to ground in circuit 142.

Is the repair complete?

--

Go to Step 24

--

17

Repair the poor connection or the open in circuit 540.

Is the repair complete?

--

Go to Step 24

--

18

Repair the poor connection or the open in circuit 142.

Is the repair complete?

--

Go to Step 24

--

19

Repair the short to ground in circuit 75.

Is the repair complete?

--

Go to Step 24

--

20

Repair the poor connection or the open in circuit 75.

Is the repair complete?

--

Go to Step 24

--

21

Repair the poor connection or the open in circuit 707.

Is the repair complete?

--

Go to Step 24

--

22
  1. Inspect the BCM connector C2 terminal D9 for a poor terminal contact. Repair as needed.
  2. If the BCM connector C2 terminal D9 is OK, then replace the BCM. Refer to Body Control Module Replacement in Body Control System.

Is the repair complete?

--

Go to Step 24

--

23

Replace the RAP relay.

Is the repair complete?

--

Go to Step 24

--

24
  1. Turn the ignition switch to the OFF position.
  2. Reinstall the connectors/components removed.
  3. Turn the ignition switch to the RUN position for 6 seconds.
  4. Turn the ignition switch to the OFF position.
  5. Remove the MALL PGM Fuse.
  6. Turn the ignition to the ACC position. (The BCM sounds the chime a number of times equivalent to the BCM type installed on the vehicle).
  7. Within 1 second, turn the ignition switch from the ACC position, to the OFF position, then back to the ACC position. (The BCM sounds any DTCs stored).

Are there any BCM DTCs present?

--

Go to Diagnostic System Check - Body Control System in Body Control System

Go to Retained Accessory Power (RAP) System Check

25
  1. Turn OFF the IP dimmer switch.
  2. Turn Of the left and the right roof rail courtesy/reading lamps.
  3. Turn OFF the windshield header courtesy/reading lamps.
  4. Turn the ignition switch to the RUN position.
  5. While observing the interior courtesy lights, close all of the vehicle doors.

Are the interior courtesy lights OFF?

--

Go to Step 26

Go to Step 27

26

Replace the BCM. Refer to Body Control Module Replacement in Body Control System.

Is the repair complete?

--

Go to Step 24

--

27

Refer to Interior Lamps System Check in Lighting, to further diagnose a condition that causes the courtesy lights to stay on, thus disengaging the RAP feature.

Is the action complete?

--

Go to Step 24

--