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 power is seeing too much electricity. It's like when you try to fill a cup with water, but you pour too much and it overflows.
The P14AE code indicates that the voltage reading from the second battery sensor is higher than the expected range.
This code is triggered when the vehicle's powertrain control module (PCM) or battery management system detects that the voltage from Battery Sensor 2 is above the predetermined threshold. This could indicate a problem with the sensor, wiring, or the battery itself.
• Check engine light is on
• Battery warning light may appear
• Possible electrical issues or battery drain
• Faulty battery sensor
• Wiring issues or poor connections
• Overcharging of the battery
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code.
• Inspect the battery sensor and its connections.
• Check the battery voltage and charging system.
• Replace the faulty battery sensor.
• Repair or replace damaged wiring or connectors.
• Check and adjust the charging system if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$100 - $300
Moderate
• Chevrolet Volt
• Nissan Leaf
• Toyota Prius
• Regularly check battery connections.
• Monitor battery voltage levels.
• Ensure proper battery maintenance.
Sensor Issue
• Avoid driving with electrical issues.
• Have the vehicle inspected by a professional.
• Regularly maintain the battery system.
Check with the vehicle manufacturer as battery sensors may be covered under warranty.
This code has been more common in hybrid and electric vehicles due to their complex battery management systems.
Moderate – Addressing this issue promptly can prevent further electrical problems.
Ignoring battery issues can lead to vehicle breakdowns or electrical hazards.
• Vehicle ignition on
• Battery under load
The battery sensor is typically located near the battery or integrated into the battery management system.
Q: Can I drive with the P14AE code?
A: It's not recommended as it could lead to battery or electrical system issues.
Q: How do I reset the P14AE code?
A: Fix the underlying issue and use an OBD-II scanner to clear the code.
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