2003 Chevrolet Venture LT, AWDFACTORY OEM SERVICE PROCEDURE

Body Control Module DTCS

BODY CONTROL MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC Description
DTC B1000 ECU Malfunction
DTC B1004 Keep Alive Memory (KAM)
DTC B1009 EEPROM Checksum Mismatch
DTC C0550 Electronic Control Unit (ECU) Performance
Factory Service Tools

Use the Manual With the Right Hardware

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

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When to See a Mechanic

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

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