Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer is having trouble getting a steady reading from one of the temperature sensors in the hybrid or electric car's battery. It's like trying to listen to a radio station that's cutting in and out.
The P0C85 code indicates an issue with the temperature sensor 'H' in the hybrid or electric vehicle's battery pack. The sensor is sending signals that are not consistent, which could affect battery performance.
The P0C85 code is triggered when the Powertrain Control Module (PCM) or Battery Energy Control Module (BECM) detects an intermittent or erratic signal from the temperature sensor 'H' in the hybrid/EV battery pack. This sensor is critical for monitoring the battery's temperature to ensure optimal performance and safety.
• Check Engine Light is on
• Reduced fuel efficiency
• Possible battery overheating
• Faulty battery temperature sensor
• Wiring issues or loose connections
• Faulty PCM or BECM
PCM: Powertrain Control Module
BECM: Battery Energy Control Module
• Use an OBD-II scanner to confirm the code.
• Inspect the battery temperature sensor and its wiring for damage.
• Check for loose or corroded connections.
• Replace the faulty temperature sensor.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the PCM/BECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regularly check battery connections.
• Ensure proper maintenance of the hybrid/EV system.
• Avoid extreme temperatures when possible.
Sensor Issue
• Avoid driving the vehicle aggressively until the issue is resolved.
• Monitor the vehicle's performance and report any changes to a mechanic.
Check with your vehicle manufacturer, as some hybrid/EV components may be covered under extended warranty.
This code has become more common as hybrid and EV vehicles have become more prevalent, highlighting the importance of battery management systems.
Moderate – While the vehicle can still be driven, it is important to address the issue to prevent potential battery damage.
Ignoring this code could lead to battery damage or reduced vehicle performance. Always consult a professional mechanic for diagnosis and repair.
• Vehicle in a safe environment.
• Battery at normal operating temperature.
The battery temperature sensor is typically located within the battery pack of the hybrid or electric vehicle.
Q: Can I drive with a P0C85 code?
A: While the vehicle may still be operable, it's best to address the issue promptly to avoid potential battery damage.
Q: How can I prevent this code from appearing?
A: Regular maintenance and checks of the battery system can help prevent issues with the temperature sensor.
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