Mountaineer 2WD V6-245 4.0L VIN X SFI (2000)
Temperature Gauge: Testing and Inspection
Magnetic Gauge Testing
The Instrument Gauge System Tester is used to diagnose concerns with the instrument cluster magnetic gauges.
To test the magnetic gauges:
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Disconnect the connector from the appropriate sender and connect the signal wire to the Instrument Gauge System Tester.
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Turn the vehicle ignition switch lock cylinder to the ON position.
1. Disconnect water temperature indicator sender unit C104. Connect one lead of Instrument Gauge System Tester to water temperature indicator
sender unit C104, circuit 39 (RD/WH), and the other lead to ground.
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.
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.
