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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1225 (Instrument Panel, Gauges & Console) >> Diagnostic Information and Procedures >> Engine Coolant Temperature Gage Inaccurate or Inoperative >> Test Description

Test Description

WARNING: This page is about a different car, the 2002 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.

The number(s) below refer to the step number(s) on the diagnostic table.

  1. 3. This step tests for a short to ground in the signal circuit.
  2. 4. This step tests for an open, a high resistance, or a short to voltage in the signal circuit.
  3. 14. DTCs will be set in the PCM when you perform this diagnostic table.
    Fig 1: Engine Coolant Temperature Gage Inaccurate Or Inoperative (1 Of 2)
    G01616436Courtesy of GENERAL MOTORS CORP.
    Fig 2: Engine Coolant Temperature Gage Inaccurate Or Inoperative (2 Of 2)
    G01616437Courtesy of GENERAL MOTORS CORP.