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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1622 (Instrument Panel System Displays & Gauges) >> Diagnostic Information and Procedures >> Engine Coolant Temperature Indicator Malfunction >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, verify that the engine coolant temperature indicator performs a bulb test when the ignition is turned ON.
    • If the engine coolant temperature indicator does not perform a bulb test, replace the IPC.
  2. Ignition ON, verify that the scan tool Engine Coolant Temperature (ECT) Sensor parameter is less than 248°F (120°C).
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