Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer has detected a problem with the charging system. It's like when you plug in your phone to charge, but it doesn't charge because something is wrong with the plug or the charger.
The P0CFB code indicates that there is a high voltage condition in the Control Pilot Charging Switch A circuit, which is part of the electric vehicle charging system.
The Control Pilot Charging Switch A circuit is responsible for managing the charging process in electric vehicles. A 'Circuit High' condition means that the voltage level detected is higher than the expected range, possibly due to a short circuit, faulty wiring, or a malfunctioning component.
• Charging system warning light on
• Vehicle not charging properly
• Intermittent charging issues
• Faulty Control Pilot Charging Switch
• Wiring issues in the charging circuit
• Malfunctioning charging port
Control Pilot: A signal used in electric vehicle charging to communicate between the vehicle and the charging station.
Circuit High: A condition where the voltage in a circuit is higher than expected.
• Check for any loose or damaged wiring in the charging circuit.
• Inspect the Control Pilot Charging Switch for faults.
• Test the charging port for proper operation.
• Replace the faulty Control Pilot Charging Switch.
• Repair or replace damaged wiring.
• Replace the charging port if necessary.
• Multimeter
• OBD-II scanner
• Basic hand tools
$200 - $500
Moderate
• Chevrolet Volt
• Nissan Leaf
• Tesla Model S
• Regularly inspect charging cables and ports.
• Ensure proper connection during charging.
• Avoid charging in extreme weather conditions.
Charging System Issue
• Avoid using the vehicle until the issue is resolved to prevent further damage.
• Consult with a professional mechanic or dealership for accurate diagnosis and repair.
Check with your vehicle manufacturer for warranty coverage on charging system components.
This code has become more common with the increased use of electric vehicles and the complexity of their charging systems.
High – Charging issues can prevent the vehicle from operating properly and should be addressed promptly.
Driving with a malfunctioning charging system can lead to vehicle performance issues and may violate emissions regulations.
• Vehicle in Park
• Charging cable connected
The Control Pilot Charging Switch is typically located near the vehicle's charging port.
Q: Can I drive my car with code P0CFB?
A: It's not recommended to drive the vehicle until the issue is resolved, as it may not charge properly.
Q: Will this code clear itself?
A: The code may clear itself if the issue is resolved, but it's best to have it checked by a professional.
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