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Home >> Chevrolet >> 2001 >> Cavalier LS, 2.2 4 >> Repair and Diagnosis >> External Pages >> Different car >> Section 348 (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

Test Description

WARNING: This page is about a different car, the 2003 Pontiac Sunfire and 2003 Chevrolet Cavalier. 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.

Tests for the proper operation of the 12v sensor power circuit, sensor ground circuit, and Passlock™ data circuit. Troubleshoot the appropriate DTC prior to diagnosing DTC B3031.

Fig 1: Diagnostic System Check - DTC B3031
G01559347Courtesy of GENERAL MOTORS CORP.
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