P0C42
Hybrid/EV Battery Pack Coolant Temperature Sensor A Circuit
P0C42 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Pack 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
- Reduced performance of the hybrid system
- Error message on the dashboard
- The battery is overheating
- Reduced power or range (for electric vehicles)
Causes
- Coolant temperature sensor malfunction
- Open or short circuit in the sensor circuit
- Poor contact in sensor connectors
- Wiring harness damage
- Problems with the hybrid system control module
How to Fix
- Check the integrity of the sensor circuit
- Inspect the connectors and contacts of the sensor
- Check the resistance of the temperature sensor
- Replace the faulty sensor if necessary
- Reset error code after repair
Related codes
Error P0C42 by Vehicle Brand
FAQ
What does the P0C42 code mean?
P0C42 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Pack Coolant Temperature Sensor A Circuit
What causes a P0C42 error code?
The most common causes of P0C42 include: Coolant temperature sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in sensor connectors; Wiring harness damage.
How do I fix a P0C42 diagnostic trouble code?
To fix P0C42: Check the integrity of the sensor circuit. Inspect the connectors and contacts of the sensor. Check the resistance of the temperature sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0C42?
Limited driving only, diagnose soon
How much does it cost to fix P0C42?
The estimated repair cost for P0C42 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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