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 a sensor that tells it where a part of the generator is. It's like if you have a toy with moving parts, and one of the parts is not where it should be.
The vehicle's computer monitors the generator position sensor to ensure it is providing accurate information about the generator's position. When it detects a low voltage signal from the sensor circuit B, it triggers this code.
The P0C6B code indicates that the powertrain control module (PCM) has detected a low voltage condition in the generator position sensor circuit B. This sensor is responsible for providing feedback on the generator's rotor position, which is crucial for proper charging system operation.
• Check Engine Light is on
• Charging system warning light may be illuminated
• Battery not charging properly
• Faulty generator position sensor
• Wiring issues such as short circuits or open circuits
• Faulty PCM
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to verify the code and check for other related codes.
• Inspect the generator position sensor and its wiring for damage or disconnections.
• Test the voltage and ground signals at the sensor connector.
• Replace the faulty generator position sensor.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the PCM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Toyota Prius
• Chevrolet Volt
• Ford Fusion Hybrid
• Regularly inspect and maintain the vehicle's electrical system.
• Ensure all connectors are secure and free from corrosion.
• Perform routine checks on the vehicle's charging system.
Sensor Issue
• Do not ignore the warning lights on the dashboard.
• Have the vehicle inspected by a professional if you are not comfortable with diagnostics.
• Regular maintenance can prevent such issues.
Check with the vehicle manufacturer for specific warranty coverage on electrical components.
This code has been reported in hybrid and electric vehicles where generator position sensors play a critical role in the charging system.
Moderate – While the vehicle may still be drivable, it could lead to battery charging issues if not addressed.
Driving with a malfunctioning charging system can lead to battery failure and potential vehicle breakdown.
• Engine running
• Battery charged
The generator position sensor is typically located near the generator or alternator, often mounted directly to it.
Q: Can I drive my car with a P0C6B code?
A: It's possible, but not recommended as it can lead to battery charging issues.
Q: How can I prevent this code from appearing?
A: Regular maintenance and inspection of the vehicle's electrical system can help prevent this issue.
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