P2AFF
Engine Coolant Temperature Sensor 4 Circuit High
P2AFF is an OBD-II diagnostic trouble code meaning: Engine Coolant Temperature Sensor 4 Circuit High. Common causes: short circuit in the sensor circuit, coolant temperature sensor malfunction. Estimated repair cost: $6–28.
Symptoms
- Unstable engine operation
- Increased fuel consumption
- Incorrect temperature readings on the dashboard
- Engine overheating
- Check Engine Light Illuminates
Causes
- Short circuit in the sensor circuit
- Coolant temperature sensor malfunction
- Broken or damaged wiring
- Poor contact in the sensor connector
- Problems with the engine control unit
How to Fix
- Check the integrity of the wiring and connectors
- Measure the resistance of the temperature sensor
- Check the voltage in the sensor circuit
- Replace the coolant temperature sensor if necessary
- Reset the error code and check if it returns
Related codes
Error P2AFF by Vehicle Brand
FAQ
What does the P2AFF code mean?
P2AFF is an OBD-II diagnostic trouble code that indicates: Engine Coolant Temperature Sensor 4 Circuit High
What causes a P2AFF error code?
The most common causes of P2AFF include: Short circuit in the sensor circuit; Coolant temperature sensor malfunction; Broken or damaged wiring; Poor contact in the sensor connector.
How do I fix a P2AFF diagnostic trouble code?
To fix P2AFF: Check the integrity of the wiring and connectors. Measure the resistance of the temperature sensor. Check the voltage in the sensor circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2AFF?
Limited driving only, diagnose soon
How much does it cost to fix P2AFF?
The estimated repair cost for P2AFF is $6–28. Actual cost depends on your vehicle, location, and labor rates.
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