Pinpoint Test G - Temp Gauge Displays 2 Top & 2 Bottom Bars
- Disconnect connector from Engine Coolant Temperature (ECT) sensor. Turn ignition on. Wait until prove-out is completed. Temperature gauge should indicate cold; only bottom bar should appear. If temperature gauge does not indicate as specified, go to next step. If temperature gauge indicates as specified, replace ECT sensor.
- Disconnect negative battery cable. Remove instrument cluster. See INSTRUMENT CLUSTER under REMOVAL & INSTALLATION. Measure resistance between connector C1, pin No. 8 (Black/White wire) and connector C2, pin No. 23 (Red/White wire). See Figure and Figure . If resistance is greater than 10 k/ohms, temporarily substitute known-good EIC, then retest system. If resistance is 10 k/ohms or less, repair short on Red/White wire to ECT sensor.