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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1639 (Theft Deterrent System) >> Diagnostic Information and Procedures >> DTC B3033: BCM Is Reading A Tamper Code From Passlock™ Sensor >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 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.

3. Tests for a magnetic field near the ignition lock cylinder.

Fig 1: DTC B3033
G01577528Courtesy of GENERAL MOTORS CORP.
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