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Test Description

WARNING: This page is about a different car, the 2003 Pontiac Grand Prix. 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. Always perform the lighting diagnostic system check before attempting to diagnose DTC 3.
  2. Tests for a short to voltage in the courtesy lamps low control circuit.
Fig 1: DTC 003 Diagnostic Table
G01503159Courtesy of GENERAL MOTORS CORP.
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