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 saying that the sensor checking the battery's voltage isn't getting enough power. It's like a flashlight with weak batteries; it can't shine bright.
This code indicates that the voltage reading from the second battery sensor is below the expected range, suggesting a potential issue with the sensor or the battery itself.
The P14AF code is triggered when the powertrain control module (PCM) detects a voltage level from Battery Sensor 2 that is below the manufacturer's specified threshold. This could be due to a faulty sensor, wiring issues, or a problem with the battery itself.
• Check Engine Light illuminated
• Battery warning light on
• Difficulty starting the vehicle
• Faulty battery sensor
• Poor electrical connections
• Degraded battery performance
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code
• Inspect battery sensor and connections for damage
• Test battery voltage and condition
• Replace faulty battery sensor
• Repair or replace damaged wiring
• Replace the battery if necessary
• OBD-II scanner
• Multimeter
• Wrench set
$100 - $300
Moderate
• Chevrolet Volt
• Cadillac ELR
• Buick LaCrosse
• Regularly inspect battery terminals and connections
• Ensure battery is properly maintained
• Check sensor connections periodically
Sensor Issue
• Have your battery and sensors checked regularly
• Address warning lights promptly to avoid further issues
Check with your vehicle manufacturer for warranty coverage on sensors and battery components.
This code has been reported in hybrid and electric vehicles, where battery management is crucial.
Moderate – Addressing this issue promptly can prevent further electrical problems.
Ignoring battery-related issues can lead to vehicle breakdowns and safety hazards.
• Vehicle at operating temperature
• Battery fully charged
Battery Sensor 2 is typically located near the battery, often integrated into the battery management system.
Q: Can I drive with a P14AF code?
A: It's not recommended as it may lead to battery issues or vehicle starting problems.
Q: How can I prevent this code from appearing?
A: Regular maintenance of your battery and electrical system can help prevent this issue.
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