P0E84
Auxiliary Cooling System Coolant Temperature Sensor A Circuit High
P0E84 is an OBD-II diagnostic trouble code meaning: Auxiliary Cooling System Coolant Temperature Sensor A Circuit High. Common causes: coolant temperature sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $17–56.
Symptoms
- Check Engine light comes on
- Incorrect operation of the cooling system
- Engine overheating in some operating modes
- Reduced cooling efficiency
- Possible reduction in engine power
Causes
- Coolant temperature sensor malfunction
- Open or short circuit in the sensor circuit
- Poor contact in sensor circuit connectors
- Engine control unit malfunction
- Problems in the additional cooling system
How to Fix
- Check the continuity of the coolant temperature sensor circuit
- Check the sensor readings using a diagnostic tool
- Replace the coolant temperature sensor if necessary
- Check and restore contacts in the circuit connectors
- Check the operation of the additional cooling system
Related codes
Error P0E84 by Vehicle Brand
FAQ
What does the P0E84 code mean?
P0E84 is an OBD-II diagnostic trouble code that indicates: Auxiliary Cooling System Coolant Temperature Sensor A Circuit High
What causes a P0E84 error code?
The most common causes of P0E84 include: Coolant temperature sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in sensor circuit connectors; Engine control unit malfunction.
How do I fix a P0E84 diagnostic trouble code?
To fix P0E84: Check the continuity of the coolant temperature sensor circuit. Check the sensor readings using a diagnostic tool. Replace the coolant temperature sensor if necessary. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0E84?
Limited driving only, diagnose soon
How much does it cost to fix P0E84?
The estimated repair cost for P0E84 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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