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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 257 (Theft Deterrent System) >> Diagnostic Information and Procedures >> DTC B3033: BCM Is Reading A Tamper Code From The Passlock™ Sensor >> Test Description

Test Description

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2003 GMC Savana Special, 2003 GMC Savana Camper Special, 2003 GMC Savana, 2003 Chevrolet RV Cutaway, and 2003 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

The number below refers to the step number on the diagnostic table.

  1. 3. Tests for a magnetic field near the ignition lock cylinder.
    Fig 1: Identifying DTC B3033 Diagnostic Table
    G02422728Courtesy of GENERAL MOTORS CORP.
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