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Home >> Pontiac >> 2001 >> Aztek Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 715 (Theft Deterrent System) >> Diagnostic Information and Procedures >> DTC B3031: BCM Is In Learn Mode But Does Not See A Valid Passlock™ Sensor Code >> Test Description
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Test Description

WARNING: This page is about a different car, the 2002 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

  1. 3.  Tests for the proper operation of the 12 V sensor power circuit, sensor ground circuit, and Passlock™ data circuit. Troubleshoot the appropriate DTC prior to diagnosing DTC B3031.
Fig 1: Identifying DTC B3031 Diagnostic Table
G01779974Courtesy of GENERAL MOTORS CORP.