Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
Your car has a sensor that checks how warm or cold the battery is. This code means the sensor thinks the battery is too cold.
This code indicates that the temperature reading from the second battery sensor is below the expected range.
The P14AB code is triggered when the Engine Control Module (ECM) detects that the temperature reading from Battery Sensor 2 is lower than the predetermined threshold. This could indicate a fault in the sensor, wiring issues, or an actual low temperature condition.
• Check Engine Light is on
• Possible battery performance issues
• Reduced fuel efficiency
• Faulty battery temperature sensor
• Wiring issues or poor connections
• Actual low battery temperature
ECM: Engine Control Module
OBD-II: On-Board Diagnostics II
• Use an OBD-II scanner to confirm the code.
• Inspect the battery temperature sensor and its wiring.
• Check the actual battery temperature.
• Replace the faulty battery temperature sensor.
• Repair or replace damaged wiring or connectors.
• Ensure the battery is operating within the correct temperature range.
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $300
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regular maintenance of battery and sensors.
• Ensure battery is insulated in cold weather.
• Check wiring and connections periodically.
Sensor Issue
• Avoid extreme temperatures to prolong battery life.
• Regularly check battery health and performance.
Check with your vehicle manufacturer for warranty coverage on battery sensors.
This code has become more common with the increased use of electric and hybrid vehicles, where battery management is critical.
Moderate – While not immediately critical, it should be addressed to prevent potential battery issues.
Driving with a faulty battery sensor can lead to reduced vehicle performance and efficiency.
• Vehicle at normal operating temperature
• Ambient temperature within normal range
The battery temperature sensor is typically located near or on the battery pack.
Q: Can I drive with a P14AB code?
A: Yes, but it is recommended to address the issue soon to avoid potential battery problems.
Q: How can I prevent this code from appearing?
A: Regular maintenance and avoiding extreme temperatures can help prevent this issue.
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