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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1184 (Door System, Mirror System & Window System) >> Diagnostic Information and Procedures >> DTC B2278, B2279: Overcurrent Condition >> Test Description

Test Description

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The numbers below refer to the step numbers on the diagnostic table.

  1. This tests if a door switch for an internal short to voltage or ground.
  2. This tests a door switch illumination circuits for a short to voltage or ground.
Fig 1: DTC B2278-B2279
G01451095Courtesy of GENERAL MOTORS CORP.