Temperature Gauge Test

Turn ignition off. Disconnect temperature sensor connector. Connect instrument gauge system tester to temperature sensor harness connector Red/White wire. Set tester at 300 ohms. Turn ignition on, wait 60 seconds and read gauge. Temperature gauge should read "C" (cold). Set tester at 45 ohms. Turn ignition on, wait 60 seconds and read gauge. Temperature gauge should read within 1/4 and 1/2 range. Turn ignition off. Set tester to 18 ohms. Turn ignition on, wait 60 seconds. Temperature gauge should read "H" (hot). If temperature gauge does not function as specified, go to COOLANT TEMPERATURE READS INACCURATELY  under SYMPTOM TESTS.