Engine Coolant Temperature Sensor Output Stuck at Low Engine Coolant Temperature

Variation of engine coolant temperature

Less than 3°C (5.4°F)

Engine Coolant Temperature Sensor Output Stuck at High Engine Coolant Temperature:

Variation of engine coolant temperature

1°C (1.8° F) or less

COMPONENT OPERATING RANGE

Engine coolant temperature

Varies with actual engine coolant temperature

WIRING DIAGRAM

Refer to DTC P0115 (See page ES-105).

HINT:

If any of DTCs P0115, P0117, P0118 or P0125 are set simultaneously with DTC P0116, the ECT sensor may have an open or a short circuit. Troubleshoot those DTCs first.

Read freeze frame data using an intelligent tester. Freeze frame data record the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the airfuel ratio was lean or rich, and other data, from the time the malfunction occurred.

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

Don't pay hundreds of dollars to find out what is wrong with your car. This book is dedicated to helping the do it yourself home and independent technician understand and use OBD-II technology to diagnose and repair their own vehicles.

Get My Free Ebook


Post a comment