Engine Coolant Temperature Gauge

GAUGE TEST - ENGINE COOLANT TEMPERATURE GAUGE

Preliminary Setup:

1. Disconnect water temperature indicator sender unit C1061. Connect one lead of Instrument Gauge System Tester to water temperature indicator sender unit C1061, circuit 39 (RD/WH), harness side and the other lead to ground.

Check C (Cold) Indication:

2. Set Instrument Gauge System Tester to 300 ohms. Key ON. Wait one minute. The engine coolant temperature gauge should indicate C (cold). Key OFF.

Check Normal Range Indication:

3. Set Instrument Gauge System 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.

Check H (Hot) Indication:

4. Set Instrument Gauge System 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. Pinpoint Tests - Instrument Cluster