SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 663 (COMPUTER/INTEGRATING SYSTEMS)DIAGNOSTIC INFORMATION AND PROCEDURESRETAINED ACCESSORY POWER (RAP) ON AFTER TIMEOUT
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6

Retained Accessory Power (RAP) On After Timeout

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Retained Accessory Power (RAP) On After Timeout
WARNING: This page is about a different car, the 2006 GMC Sierra, 2006 GMC Cab & Chassis Sierra, 2006 Chevrolet Silverado, and 2006 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Retained Accessory Power (RAP) On After Timeout

Step Action Yes No
Schematic Reference: Data Link Connector (DLC) Schematics  in Data Link Communications
Connector End View Reference:  Master Electrical Component List  in Wiring Systems 
1 Did you perform the Diagnostic System Check - Vehicle? Go to Step 3  Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2
  1. Observe the following parameters in DDM, PDM and BCM data list:
    • Driver Door Ajar Switch w/o DDM
    • Passenger Door Ajar Switch w/o PDM
    • Door Ajar Switch
    • Left Rear/Rear Cargo Door Ajar Switch
    • Right Rear Door Ajar Sw.
  2. Open and close each door while observing the respective parameter.
Does the scan tool display change from On to Off, respectively?		 Go to Step 3  Go to Symptoms - Lighting Systems in 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 in Wiring Systems Go to Step 4 
4 Inspect for poor connections at the harness connector of the body control module (BCM). 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 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 3 
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.