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No Coolant Temperature Display, Coolant Temperature Gauge

INCORRECT, OR GAUGE DOES NOT VARY

NOTE: The "C", "H" and "TEMP" will not be lit if there is an open in the coolant temperature circuit.
  1. Unplug coolant temperature sensor connector. Sensor is on the top front of engine block. Connect Tester (J-33431-A) to center and outer terminal of the coolant temperature sensor connector. Use Red rheostat leads.
  2. Set resistance to 1600 ohms. Turn ignition on. Cluster should display a cold engine. With ignition still on, set resistance to 60 ohms. Cluster should gradually change to full hot. "HOT" lamp and "X" should flash on and off.
  3. If all tests in step 2) are good, replace coolant sensor. If cluster does not respond as outlined, remove left front speaker cover. Disconnect negative battery cable.
  4. Unplug cluster connector harness. Connect a jumper wire between pins A (Yellow wire) and U (Black wire) of harness connector. Hook up an ohmmeter between temperature sensor connector center and outer terminals. Check for shorts or opens in wiring. If wiring is good, replace cluster.
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