Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the part of the car that helps control the battery's charging. It's like a switch that isn't working right, so the battery might not charge properly.
The P0D14 code indicates that there is a high voltage detected in the control circuit of the negative contactor for the battery charging system. This could mean that the circuit is not functioning as expected.
The negative contactor is a component in the battery charging system that helps manage the flow of electricity. A 'Control Circuit High' condition suggests that there is an unexpected high voltage present, which may be due to a fault in the wiring, a defective contactor, or an issue with the control module.
• Battery not charging properly
• Warning light on the dashboard
• Possible reduced vehicle performance
• Faulty battery negative contactor
• Damaged or corroded wiring or connectors
• Defective control module
Contactor: An electrically controlled switch used for switching a power circuit.
Control Circuit: The circuit that controls the operation of a device or system.
• Check for any loose or corroded connections in the battery charging system.
• Inspect the wiring and connectors for damage.
• Test the negative contactor for proper operation.
• Replace the faulty negative contactor.
• Repair or replace damaged wiring or connectors.
• Replace the defective control module if necessary.
• Multimeter
• OBD-II scanner
• Wrench set
$150 - $500
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regularly inspect battery connections for corrosion.
• Ensure all electrical components are properly maintained.
• Perform routine diagnostics on the battery charging system.
Battery Charging System Issue
• Have your vehicle inspected by a professional if you see this code.
• Avoid using high electrical loads until the issue is resolved.
Check your vehicle's warranty to see if battery components are covered.
This code has been more common in hybrid and electric vehicles as they rely heavily on battery systems.
Moderate – It should be addressed soon to prevent battery charging issues and potential vehicle performance problems.
Ignoring battery charging system issues can lead to reduced vehicle performance and potential safety hazards. Always address these issues promptly.
• Vehicle at operating temperature
• Battery charging system active
The negative contactor is typically located near the battery or within the battery management system.
Q: Can I drive my car with this code?
A: It's not recommended to drive for long periods with this code, as it could lead to battery charging issues.
Q: How can I prevent this issue?
A: Regular maintenance and inspection of your vehicle's electrical systems can help prevent this issue.
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