Accord LX Sedan L4-2156cc 2.2L SOHC MFI (1997)
Temperature Sensor (Gauge): Testing and Inspection
1. Disconnect the YEL/GRN wire from the ECT sending unit.
Engine Coolant Temperature (ECT) Gauge - ECT Sending Unit Test
2. With the engine cold, use an ohmmeter to measure resistance between the positive terminal and the engine (ground).
3. Check the temperature of the coolant.
Engine Coolant Temperature (ECT) Gauge - ECT Sending Unit Test
4. Run the engine, and measure the change in resistance with the engine at operating temperature (the radiator fan comes on).
5. If the obtained readings are substantially different from the specifications above, replace the sending unit.
