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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1247 (Cruise Control System) >> Diagnostic Information and Procedures >> Diagnostic System Check - Cruise Control >> Test Description

Test Description

WARNING: This page is about a different car, the 2002 GMC Safari and 2002 Chevrolet Astro. 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. Lack of communication may be due to a partial malfunction of the class 2 serial data circuit or due to a total malfunction of the class 2 serial data circuit. The specified procedure will determine the particular condition.
  2. 3. The symptom list in Symptoms will determine the correct diagnostic procedure to use.
    Fig 1: Diagnostic System Check - Cruise Control
    G02506423Courtesy of GENERAL MOTORS CORP.
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