Engine Coolant Temperature Gauge

GAUGE TEST - ENGINE COOLANT TEMPERATURE GAUGE







1. Disconnect water temperature indicator sender unit C1061. Connect one lead of the tester to water temperature indicator sender unit C1061, circuit 39 (RD/WH), and the other lead to ground.







2. Set the tester to 300 ohms. Key ON. Wait one minute. The engine coolant temperature gauge should indicate C (cold). Key OFF.







3. Set the tester to 45 ohms. Key ON. Wait one minute. The engine coolant temperature gauge pointer should be in the one-quarter range to mid-range. Key OFF.







4. Set the tester to 18 ohms. Key ON. Wait one minute. The engine coolant temperature gauge should indicate H (hot). Key OFF. Return to the Pinpoint Test.