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Home >> GMC >> 2002 >> Jimmy 2D Utility, Automatic, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1577 (Lighting Systems) >> Diagnostic Information and Procedures >> DTC B2625: Display Dimming Pulse Width Modulation (PWM) Output Circuit >> Test Description
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Test Description

WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. 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. This step test determines if the problem exists in the wiring or the BCM.
  2. 3. After replacement of the BCM you must calibrate the new module for proper operation.
Fig 1: DTC B2625 - Diagnostic Chart
G01640397Courtesy of GENERAL MOTORS CORP.
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