What does a coolant temperature sensor malfunction mean?

Engine Coolant Temperature Sensor Circuit Malfunction What does that mean? This diagnostic trouble code (DTC) is considered generic because it applies to all 1996-newer OBD-II equipped vehicles. Specific troubleshooting and repair steps may vary slightly depending on make/model.

What is the coolant sensor code on a Subaru Impreza?

Other coolant engine light codes: P0115, P0116, P0117, P0118, P0119, P0125, P0128 95 Subaru Impreza, auto transmission, 2.2 L engine. ODB Code P0115. Replaced ECT Sensor. Code returned.

Can a bad coolant sensor cause a car to not start?

Some cars use the engine coolant temperature sensor to control the electric cooling fans. You have two separate temperature sensors for the fans, dashboard gauge, and engine management in most cars. However, if your car has a single sensor, a bad engine coolant temperature sensor may result in your fans won’t start at all.

How can I tell if my temperature sensor is bad?

If the temperature is about 0 def. F., the resistance will be over 10,000 Ohms. With this test you should be able to tell if the resistance of the sensor matches the temperature of the engine. If it’s not accurate according to your engine’s temperature, then you probably have a bad sensor. 3.

Other coolant engine light codes: P0115, P0116, P0117, P0118, P0119, P0125, P0128 95 Subaru Impreza, auto transmission, 2.2 L engine. ODB Code P0115. Replaced ECT Sensor. Code returned.

What should coolant temp be on p0115 engine?

Temp guage takes quite a while to move but does work. scanner says temp is 280 regardless if its warmed up or not. unplugging the ect harness drops reading to -40. typically that would indicat… Runs good got 105K on it Replaced EGR & O2 upstream and these are the codes I have now.