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

Test Description

  1. Tests for a fault in the door jamb switches or driver door module (DDM). Go to Courtesy Lamps Always On in Lighting Systems if the interior lights stay on longer than 25 seconds.

Step

Action

Yes

No

Schematic Reference: Retained Accessory Power (RAP) Schematics

Connector End View Reference: Master Electrical Component List

1

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

Go to Step 2

Go to Diagnostic System Check - Retained Accessory Power

2

  1. Close all the doors.
  2. Wait 25 seconds.

Are the interior lights still ON?

Go to Courtesy Lamps Always On in Lighting Systems

Go to Step 3

3
  1. Install a scan tool.
  2. Close all the doors.
  3. Turn ON the ignition with the engine OFF.
  4. Wait 5 seconds, then turn OFF the ignition.
  5. Observe the remote control door lock receiver (RCDLR) Accessory 1 status.

Does the Accessory 1 status indicate Off?

Go to Step 4

Go to Step 12

4

Observe the RAP Output parameters in the remote function actuation data list.

Does the RAP Output indicate ON?

Go to Step 5

Go to Step 13

5
  1. Turn ON the ignition, with the engine OFF.
  2. With the scan tool, command the RAP relay ON and OFF.

Does the RAP relay turn ON and OFF with each command?

Go to Step 9

Go to Step 6

6
  1. Turn OFF the ignition.
  2. Disconnect the RAP relay.
  3. Turn ON the ignition, with the engine OFF.
  4. Probe the coil side feed circuit of the RAP relay with a test lamp that is connected to a good ground.

Does the test lamp illuminate?

Go to Step 7

Go to Step 14

7
  1. Connect a test lamp between the coil control circuit of the RAP relay and the coil side feed circuit of the RAP relay.
  2. With the scan tool, command the RAP relay ON and OFF.

Does the test lamp turn ON and OFF with each command?

Go to Step 9

Go to Step 8

8

Test the control circuit of the RAP relay for a high resistance, an open or a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 17

Go to Step 13

9

Test the load output circuit of the RAP relay for a short to ground, high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 17

Go to Step 10

10

Test the load input circuit of the RAP relay for a short to ground, high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 17

Go to Step 11

11

Inspect for poor connections and terminal tension at the RAP 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 17

Go to Step 15

12

Test the RCDLR accessory positive voltage circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 17

Go to Step 13

13

Inspect for poor connections and terminal tension at the harness connector of the RCDLR. 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 17

Go to Step 16

14

Repair the coil side feed circuit of the RAP relay. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 17

--

15

Replace the RAP relay.

Did you complete the replacement?

Go to Step 17

--

16

Replace the RCDLR. Refer to Remote Control Door Lock Receiver Replacement in Keyless Entry.

Did you complete the replacement?

Go to Step 17

--

17

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2