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HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 33 (COMPUTER RELEARN PROCEDURES)RELEARN PROCEDURES (TRUCKS & VANS)BLAZER, BRAVADA, ENVOY, JIMMY, PICKUP & SONOMABCM PROGRAMMING
1999 GMC Forward Control 5.7 R, Automatic

BCM Programming

1999 GMC Forward Control 5.7 R, AutomaticSECTION BCM Programming
WARNING: This page does not describe the selected car, but rather 67 other vehicles, including the 2000 Saturn SW2, 2000 Saturn SL2, 2000 Saturn SL1, 2000 Saturn SL, and 2000 Saturn SC2. However, it is still accessible from the selected car via links, so may be relevant.

This procedure requires Techline terminal and equipment. Ensure battery is fully charged. Ensure battery and lighter connectors are secure. Ensure DLC is accessible. Turn ignition on. Refer to Techline terminal and equipment user's instructions.

If BCM fails to program, check all BCM connections, check Techline terminal and equipment for latest software version. Retry programming. If BCM fails to program again, replace BCM. See BODY CONTROL MODULES - BLAZER, BRAVADA, ENVOY, JIMMY, SONOMA & S10 PICKUP article in ACCESSORIES & EQUIPMENT. Clear DTCs after programming.

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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.