SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN PASSENGER EXTENDED, 5.0 MREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 793 (BODY CONTROL SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESON-BOARD DIAGNOSTIC FEATURESENTERING BCM DIAGNOSTICS
2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 M

Entering BCM Diagnostics

2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 MSECTION Entering BCM Diagnostics
WARNING: This page is about a different car, the 2002 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.

To enter the self-test mode and retrieve DTCs from the body control module (BCM), perform the following:

  1. Make sure the ignition switch is OFF.
  2. Make sure that the hood, trunk and all doors are closed.
  3. Turn the instrument panel dimmer switch to OFF.
  4. Remove the fuse labeled MALL PGM.
  5. Turn the ignition switch from OFF to ACC.
    • The BCM will sound the type number of the BCM on the chime generator. (2 through 4) Check to see if the BCM type number matches the option codes for the vehicle.
      • Base vehicle - BCM type 2
      • RPO AU0 - BCM type 3
      • RPO AU0 and UA6 - BCM type 4
    • If the BCM does not sound the chime to indicate the type, refer to Cannot Enter BCM Diagnostics  .
  6. Turn the ignition from ACC to OFF and back to ACC, taking no more that 1 second to complete the action.
    • The BCM now flashes the seat belt indicator and sounds the chime to indicate the stored DTCs in the BCM.
    • The BCM reports the stored DTCs in numerical order from the lowest to the highest.
    • The BCM repeats the series of stored DTCs three times.
    • If the BCM does not flash the seat belt indicator or sound the chime, there are no DTCs stored.
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.