What are the possible causes of the P1296 code?
- Low coolant level
- Faulty Engine Coolant Temperature (ECT) sensor
- Faulty engine coolant thermostat
- Engine Coolant Temperature (ECT) sensor harness is open or shorted
- Poor electrical connection in the Engine Coolant Temperature (ECT) sensor circuit
How to repair the P1296 code?
Start by checking the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
What are the possible symptoms of the P1296 code?
- Check Engine Light on (or Service Engine Soon warning light)
What does the P1296 code mean?
The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. The sensor modifies a voltage signal from the Engine Control Module (ECM). The modified signal returns to the ECM as an engine coolant temperature input. The sensor uses a thermistor that is sensitive to temperature change. The electrical resistance of the thermistor decreases as the temperature increases.