LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 930 (Theft Deterrent System) >> Diagnostic Information and Procedures >> DTC B3031: BCM Does Not See A Valid Passlock™ Sensor Code >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. 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 the proper operation of the 12V reference Security Sensor Power circuit, sensor ground circuit, and Passlock™ sensor signal (data) circuit. Troubleshoot the appropriate DTC prior to diagnosing DTC B3031.
    Fig 1: DTC B3031
    G01476753Courtesy of GENERAL MOTORS CORP.

scientia non olet · About LEMON Manuals