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Home >> GMC >> 1999 >> Forward Control 7.4 J >> Repair and Diagnosis >> External Pages >> Different car >> Section 33 (Computer Relearn Procedures) >> Relearn Procedures (Trucks & Vans) >> Escalade, Pickup, Sierra, SILVERADO, TAHOE, YUKON & YUKON XL >> Password Learn Procedure For Anti-Theft System (4.3L, 4.8L, 5.3L & 6.0L)

Password Learn Procedure For Anti-Theft System (4.3L, 4.8L, 5.3L & 6.0L)

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.
  1. Password relearn procedure must be performed if passlock sensor, Body Control Module (BCM), PCM or Vehicle Control Module (VCM) are replaced. Ensure battery is fully charged.
  2. Using scan tool, erase Diagnostic Trouble Codes (DTC). Turn ignition switch from OFF to CRANK position, allowing vehicle to try and start. Vehicle will start and then stall. Leave ignition on while observing SECURITY indicator on instrument panel. When security indicator turns off (after about 10 minutes), turn ignition off. Wait 10 seconds. Repeat this step 3 more times. New password will be learned on next start attempt.
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