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 checks the flow of electricity in a part of the car that helps power things like lights and radio.
The P0C9C code indicates an issue with the circuit of the current sensor B in the 14 Volt Power Module, which is responsible for monitoring the electrical current flow.
The 14 Volt Power Module is part of the vehicle's electrical system, and it includes sensors to monitor current flow. The Current Sensor B Circuit is one of these sensors, and it helps ensure that the power module is operating correctly by measuring the current. If the sensor or its circuit malfunctions, it can lead to incorrect readings or no readings at all, triggering the P0C9C code.
• Check engine light on
• Electrical components not functioning properly
• Reduced fuel efficiency
• Faulty current sensor
• Wiring issues such as open or short circuits
• Faulty 14 Volt Power Module
OBD-II: On-Board Diagnostics, a standardized system in vehicles for self-diagnosing and reporting.
Current Sensor: A device that detects and converts current to a measurable output.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors related to the current sensor B.
• Test the current sensor B for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the faulty current sensor B.
• Replace the 14 Volt Power Module if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Chevrolet Volt
• Toyota Prius
• Ford Fusion Hybrid
• Regular maintenance checks of the electrical system
• Ensuring all electrical connections are secure
• Using quality replacement parts
Sensor Issue
• Have the vehicle inspected by a professional if the check engine light is on.
• Avoid using high electrical loads until the issue is resolved.
Check with the vehicle manufacturer for specific warranty coverage related to the electrical system.
This code has been reported in hybrid and electric vehicles where precise electrical management is crucial.
Moderate – Addressing this issue is important to prevent further electrical problems.
Ignoring this code may lead to electrical failures, which could affect vehicle safety.
• Vehicle at operating temperature
• Electrical load applied (e.g., lights, radio on)
The 14 Volt Power Module is typically located in the engine bay or under the vehicle's rear seat.
Q: Can I drive with a P0C9C code?
A: It's not recommended to drive for extended periods with this code, as it may lead to electrical issues.
Q: How do I reset the P0C9C code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue is resolved, it should not return.
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