GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1999 🢒 Regal (China) (CNG) 🢒 Body and Accessories 🢒 Retained Accessory Power 🢒 Retained Accessory Power (RAP)System Check

Step

Action

Normal Result(s)

Abnormal Result(s)*

1
  1. Open the driver's door.
  2. Turn the ignition switch to the LOCK position.
  3. Attempt to turn on the radio.
  4. Press any of the power window switches.

The following do not operate:

    • The radio
    • The power windows

Retained Accessory Power (RAP) On After Timeout

2
  1. Turn the ignition switch to the RUN position.
  2. Turn on the radio.
  3. Lower the driver's window.

The following do operate:

    • The radio
    • The power windows

Retained Accessory Power (RAP) Inoperative

3
  1. Close all the vehicle doors.
  2. Turn the ignition switch to the LOCK position.

The following remain operational for 10 minutes:

    • The radio
    • The power windows

Retained Accessory Power (RAP) Inoperative

4

Within 10 minutes of Step 3, open the driver's door.
    • The radio turns off.
    • The power windows

Retained Accessory Power (RAP) On After Timeout

* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.