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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 713 (Theft Deterrent System) >> Diagnostic Information & Procedures >> DTC B3033: BCM is reading a tamper code from the Passlock™ Sensor >> Test Description

Test Description

WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. 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: DTC B3033 Diagnosis
G01712886Courtesy of GENERAL MOTORS CORP.
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