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Home >> Isuzu >> 2007 >> Ascender RWD >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Wiring Systems And Power Management - Troubleshooting & Diagnosis >> Retained Accessory Power (RAP) On After Timeout

Retained Accessory Power (RAP) On After Timeout

Retained Accessory Power (RAP) On After Timeout

Step Action Yes No
Schematic Reference: Power Moding Schematics
Connector End View Reference: Master Electrical Component List
1 Did you perform the Diagnostic System Check - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle
2
  1. Observe the following parameters in body control module (BCM), driver door module (DDM), passenger door module (PDM) and Liftgate Control Module (LGM) data list:
    • Left Rear Door Ajar Sw.
    • Right Rear Door Ajar Sw.
    • Door Ajar Switch
    • Liftgate Ajar Switch
    • Liftglass Ajar Switch
  2. Open and close each door while observing the respective parameter.
Does the scan tool display change from On/Closed to Off/Ajar?
Go to Step 3  Go to Symptoms - Lighting Systems
3
  1. Install a scan tool. Select diagnostic circuit check and then class 2 power mode.
  2. Close all the doors.
  3. Turn ON the ignition, with the engine OFF.
  4. Wait 5 seconds then turn the ignition OFF.
  5. Wait the time-out for retained accessory power (RAP).
Did the scan tool display the RAP power mode, then time-out and display Off-Awake power mode?
Go to Testing for Intermittent Conditions and Poor Connections  Go to Step 4 
4 Inspect for poor connections at the harness connector of the BCM. Refer to Testing for Intermittent Conditions and Poor Connections  and Connector Repairs .
Did you find and correct the condition?
Go to Step 6  Go to Step 5 
5 Replace the BCM. Refer to Control Module References for replacement, setup and programming.
Did you complete the procedure?
Go to Step 6  -
6 Operate the system in order to verify the repair.
Did you correct the condition?
System OK Go to Step 2