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

RAP Diagnostic System Check

Step

Action

Normal Result(s)

Abnormal Result(s)*

1
  1. Start engine and allow vehicle to idle in Park.
  2. Open the LH window by depressing the LH Window button.
  3. Open the RH window by depressing the RH Window button.
  4. Turn the Radio to ON and set the volume to medium.
    • LF window opens.
    • RH window opens.
    • Radio display illuminates and sound is heard from speakers.

2
  1. Turn the ignition switch to the OFF position.
  2. Remove key from ignition.
  3. Keep all doors closed.

Radio continues to play.

3

Depress the LH window switch and close the LH window.

LH window closes.

4

Depress the RH window switch and close the RH window.

RH window closes.

5

Open either the left or right side door.

Radio turns OFF and window power is removed.

Retained Accessory Power (RAP) Inoperative

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