Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer is having trouble getting a steady reading from one of the sensors that checks the temperature of the hybrid or electric vehicle's battery.
This code indicates that the temperature sensor for the hybrid or electric vehicle's battery is sending signals that are not consistent or are fluctuating.
The P0ACE code is triggered when the Powertrain Control Module (PCM) or Battery Management System (BMS) detects an intermittent or erratic signal from the battery temperature sensor C circuit. This sensor is crucial for monitoring the battery's temperature to ensure optimal performance and safety.
• Check Engine Light is on
• Reduced fuel efficiency
• Possible overheating of the battery
• Faulty battery temperature sensor
• Damaged or corroded wiring or connectors
• Faulty Battery Management System (BMS)
PCM: Powertrain Control Module
BMS: Battery Management System
• Use an OBD-II scanner to verify the code.
• Inspect the battery temperature sensor and its wiring for damage.
• Check the connectors for corrosion or loose connections.
• Replace the faulty battery temperature sensor.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the Battery Management System if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regular maintenance checks
• Ensure battery cooling system is functioning
• Inspect wiring and connectors periodically
Sensor Issue
• Avoid driving aggressively until the issue is resolved.
• Monitor battery temperature if possible.
Check with your vehicle manufacturer for specific warranty coverage on hybrid/EV components.
This code has become more common with the increased use of hybrid and electric vehicles, as battery management is crucial for performance and safety.
Moderate – It is important to address this issue to prevent potential battery damage or reduced vehicle performance.
Ignoring this code can lead to battery overheating, which may pose safety risks.
• Vehicle in 'Ready' mode
• Battery at normal operating temperature
The battery temperature sensor is typically located within or near the battery pack.
Q: Can I drive my car with a P0ACE code?
A: It's possible to drive, but it's not recommended as it may lead to battery damage.
Q: How do I reset the P0ACE code?
A: After repairing the issue, use an OBD-II scanner to clear the code.
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