GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Isuzu 🢒 1999 🢒 S/T Isuzu - 4WD 🢒 Body and Accessories 🢒 Retained Accessory Power 🢒 Retained Accessory Power (RAP)System Check

Step

Action

Normal Result(s)

Abnormal Result(s)*

1
  1. Close all of the doors.
  2. Cycle the ignition switch from the RUN position to the OFF position.
  3. Operate the following systems:
    4. • The power windows
    • The radio

All of the systems listed should operate normally for up to 20 minutes if all of the doors remain closed.

2
  1. Close all of the doors.
  2. Cycle the ignition switch from the RUN position to the OFF position.
  3. Operate the following systems:
    4. • The power windows
    • The radio
  4. Open any of the vehicle's doors.

All of the systems listed should shut down once the door opens.

Retained Accessory Power (RAP) Inoperative

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