Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
Your car's battery system has a part that is supposed to open and close like a door. Right now, it's stuck closed, which can cause problems with charging the battery.
The negative contactor in the battery charging system is not opening when it should, preventing proper charging control.
The P2BCC code indicates that the Battery Charging System's Negative Contactor B is stuck in the closed position. This contactor is responsible for connecting and disconnecting the battery from the charging system. If it remains closed, it can lead to overcharging or other electrical issues.
• Battery not charging properly
• Warning light on dashboard
• Electrical system malfunctions
• Faulty contactor
• Wiring issues
• Control module malfunction
Contactor: An electrically-controlled switch used for switching an electrical power circuit.
Battery Management System: A system that manages a rechargeable battery by protecting it from operating outside its safe operating area.
• Check for any error codes related to the battery system.
• Inspect the wiring and connections to the contactor.
• Test the contactor for proper operation.
• Replace the faulty contactor.
• Repair or replace damaged wiring.
• Update or reprogram the control module if necessary.
• Multimeter
• OBD-II scanner
• Basic hand tools
$150 - $500
Moderate
• Chevrolet Volt
• Nissan Leaf
• Tesla Model S
• Regular battery system maintenance
• Routine inspection of electrical connections
• Software updates for the vehicle's control systems
Battery Charging System Issue
• Avoid using the vehicle until repaired to prevent further damage.
• Consult with a professional mechanic for a proper diagnosis.
Check with the vehicle manufacturer for warranty coverage on battery system components.
This code has been reported in electric and hybrid vehicles, highlighting issues with battery management systems.
High – This issue can lead to battery damage or failure if not addressed promptly.
Driving with a malfunctioning battery system can lead to unexpected vehicle shutdowns and is not recommended.
• Vehicle in 'ON' position
• Battery charging system active
The negative contactor is located within the battery management system, typically near the battery pack.
Q: Can I drive my car with this code?
A: It's not recommended to drive with this code as it may lead to battery damage.
Q: How do I reset the code?
A: Fix the underlying issue and use an OBD-II scanner to clear the code.
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