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 thinks the temperature of the second battery sensor is too hot.
The vehicle's computer monitors the temperature of the battery through sensors. When it detects that the temperature of the second battery sensor is too high, it triggers this code.
The P14AA code indicates that the temperature reading from the second battery temperature sensor has exceeded the maximum threshold set by the manufacturer. This could be due to a malfunctioning sensor, an actual overheating issue, or wiring problems.
• Check engine light on
• Battery warning light on
• Possible reduced battery performance
• Unusual battery temperature readings
• Faulty battery temperature sensor
• Actual battery overheating
• Wiring issues or poor connections
• Faulty battery management system
Battery Sensor: A device that monitors the temperature and other parameters of a vehicle's battery.
OBD-II: On-Board Diagnostics, a standardized system for vehicle self-diagnostics and reporting.
• Check for any other related codes.
• Inspect the battery and surrounding area for signs of overheating.
• Test the battery temperature sensor for proper function.
• Inspect wiring and connections to the sensor.
• Replace the faulty battery temperature sensor.
• Repair or replace damaged wiring or connectors.
• Ensure the battery cooling system is functioning properly.
• Replace the battery if it is overheating.
• OBD-II scanner
• Multimeter
• Thermal camera or infrared thermometer
$100 - $500
Moderate
• Chevrolet Volt
• Nissan Leaf
• Toyota Prius
• Regularly inspect battery and sensor connections.
• Ensure proper battery cooling system maintenance.
• Avoid excessive heat exposure to the vehicle.
Sensor Issue
• Avoid driving the vehicle until the issue is diagnosed and repaired.
• Consult with a professional mechanic for accurate diagnosis.
Check with the vehicle manufacturer for warranty coverage on battery components.
This code is more common in hybrid and electric vehicles due to their complex battery management systems.
High – Overheating can lead to battery damage or failure.
Driving with a malfunctioning battery sensor can lead to safety issues. Always address such codes promptly.
• Engine running
• Battery under load
The battery temperature sensor is typically located near or on the vehicle's battery pack.
Q: Can I drive with a P14AA code?
A: It's not recommended to drive with this code as it may indicate a serious battery issue.
Q: How do I reset the P14AA code?
A: After repairs, use an OBD-II scanner to clear the code, but ensure the issue is resolved first.
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