P0E81
Auxiliary Cooling System Coolant Temperature Sensor A Circuit
P0E81 is an OBD-II diagnostic trouble code meaning: Auxiliary Cooling System Coolant Temperature Sensor A Circuit. Common causes: coolant temperature sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $17–56.
Symptoms
- Check Engine Light Is On
- Incorrect operation of the cooling system
- Components may overheat
- Reduced cooling efficiency
- Errors in climate control operation (if related to the system)
Causes
- Coolant temperature sensor malfunction
- Open or short circuit in the sensor circuit
- Poor contact in connectors
- Low coolant level
- Problems with the engine control unit
How to Fix
- Check coolant level
- Visually inspect the sensor and its connections
- Check sensor resistance at different temperatures
- Check the integrity of wiring and connectors
- If necessary, replace the temperature sensor
Related codes
Error P0E81 by Vehicle Brand
FAQ
What does the P0E81 code mean?
P0E81 is an OBD-II diagnostic trouble code that indicates: Auxiliary Cooling System Coolant Temperature Sensor A Circuit
What causes a P0E81 error code?
The most common causes of P0E81 include: Coolant temperature sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in connectors; Low coolant level.
How do I fix a P0E81 diagnostic trouble code?
To fix P0E81: Check coolant level. Visually inspect the sensor and its connections. Check sensor resistance at different temperatures. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0E81?
Limited driving only, diagnose soon
How much does it cost to fix P0E81?
The estimated repair cost for P0E81 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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