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Home >> Chevrolet >> 2001 >> Cavalier LS, 2.2 4 >> Repair and Diagnosis >> External Pages >> Different car >> Section 344 (Body Control System) >> Diagnostic Information and Procedures >> DTC B1372: Ignition 1 Input To The BCM Is Not Active >> 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 numbers listed below refer to the numbers on the diagnostic table.

  1. This step determines if the ignition 1 input is shorted to ground.
  2. This step determines if the BCM is internally shorted.
  3. This step determines if the instrument cluster is internally shorted.
  4. This step determines if voltage is supplied from the battery to the BCM/CLU fuse.
    Fig 1: Diagnostic System Check - DTC B1372 (1 Of 2)
    G01559181Courtesy of GENERAL MOTORS CORP.
Fig 2: Diagnostic System Check - DTC B1372 (2 Of 2)
G01559182Courtesy of GENERAL MOTORS CORP.
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