Engine-CodesGeneric – P0C0C

P0C0C Code - Drive Motor 'A' Inverter Power Supply Circuit Low

Quick Answer

The P0C0C diagnostic trouble code (DTC) refers to the Drive Motor 'A' Inverter Power Supply Circuit Low. Common causes include Faulty Drive Motor 'A' Inverter, Wiring or connection issues in the power supply circuit, Malfunctioning high-voltage battery. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0C0C indicates Drive Motor 'A' Inverter Power Supply Circuit Low.
Common causes
Common causes include Faulty Drive Motor 'A' Inverter, Wiring or connection issues in the power supply circuit, Malfunctioning high-voltage battery.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0C0C Description

The P0C0C diagnostic trouble code (DTC) refers to the Drive Motor 'A' Inverter Power Supply Circuit Low. This code is specifically related to hybrid electric vehicles (HEVs) and plug-in hybrid electric vehicles (PHEVs) that utilize an electric drive motor in their powertrain system. The Drive Motor 'A' Inverter is responsible for converting direct current (DC) power from the high-voltage battery into alternating current (AC) power to drive the electric motor. When the power supply circuit is detected to be operating at a lower voltage than expected, the P0C0C code is triggered.

OBDII Code P0C0C - Drive Motor 'A' Inverter Power Supply Circuit Low
P0C0C Code - Drive Motor 'A' Inverter Power Supply Circuit Low

Common Causes of P0C0C

  1. Faulty Drive Motor 'A' Inverter.
  2. Wiring or connection issues in the power supply circuit.
  3. Malfunctioning high-voltage battery.
  4. Software glitches in the hybrid system.
  5. Environmental factors such as water intrusion or corrosion.

Symptoms of P0C0C

  1. Reduced power and acceleration.
  2. Decreased fuel efficiency.
  3. Vehicle stalling or not starting.
  4. Warning light illuminated on the dashboard.
  5. Unusual noises coming from the electric drive motor.

How to Fix P0C0C

  1. Perform a thorough inspection of the Drive Motor 'A' Inverter and power supply circuit.
  2. Check for any loose or damaged wiring connections and repair as necessary.
  3. Test the high-voltage battery for proper voltage output.
  4. Update software in the hybrid system to the latest version.
  5. Clear the DTC and reset the system to see if the code returns after repairs.

Cost to Fix P0C0C

The typical repair costs for addressing the P0C0C code can vary depending on the specific cause of the issue. In general, the replacement of the Drive Motor 'A' Inverter or high-voltage battery can range from $1000 to $3000, including parts and labor. Additional costs may apply for diagnostic testing and any other necessary repairs. It is recommended to consult with a professional mechanic or dealership for an accurate estimate based on your vehicle's make and model. Keep in mind that labor rates can vary significantly based on location and the service provider.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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