P0C99
Hybrid/EV Battery Temperature Sensor L Circuit Low
P0C99 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Temperature Sensor L Circuit Low. Common causes: open or short circuit in the temperature sensor circuit, faulty battery temperature sensor. Estimated repair cost: $28–94.
Symptoms
- Hybrid system power reduction
- Check Engine Light Illuminated
- Error messages on the instrument panel
- Reduced battery efficiency
- System transition to emergency mode
Causes
- Open or short circuit in the temperature sensor circuit
- Faulty battery temperature sensor
- Poor connection or corroded connectors
- Damage to the wiring harness near the battery
- Battery management module (BMS) malfunction
How to Fix
- Visual inspection of the temperature sensor wiring and connectors
- Checking the resistance and voltage in the sensor circuit
- Checking the correctness of sensor readings using a diagnostic scanner
- Replacing a faulty temperature sensor
- Repair or replace damaged wiring
Related codes
Error P0C99 by Vehicle Brand
FAQ
What does the P0C99 code mean?
P0C99 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Temperature Sensor L Circuit Low
What causes a P0C99 error code?
The most common causes of P0C99 include: Open or short circuit in the temperature sensor circuit; Faulty battery temperature sensor; Poor connection or corroded connectors; Damage to the wiring harness near the battery.
How do I fix a P0C99 diagnostic trouble code?
To fix P0C99: Visual inspection of the temperature sensor wiring and connectors. Checking the resistance and voltage in the sensor circuit. Checking the correctness of sensor readings using a diagnostic scanner. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0C99?
Limited driving only, diagnose soon
How much does it cost to fix P0C99?
The estimated repair cost for P0C99 is $28–94. Actual cost depends on your vehicle, location, and labor rates.
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