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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 924 (Lighting Systems) >> Diagnostic Information and Procedures >> DTC B2537: Rear Fog Lamp Switch Signal Circuit Is Shorted To Ground >> 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 numbers below refer to the step numbers on the diagnostic table.

  1. 2. OFF is the normal state of the switch before activation.
  2. 4. OFF is the normal state of the switch before activation.
  3. 5. This step tests for a short to ground on the signal circuit.
  4. 8. After replacement of the BCM you must calibrate the new module for proper operation.
    Fig 1: DTC B2537
    G01476183Courtesy of GENERAL MOTORS CORP.
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