What Does the P0C16 Code Mean?
The P0C16 code indicates that the Drive Motor “B” Inverter Phase W has encountered an over-temperature condition. This code is part of the OBD-II system and signifies a serious malfunction in the vehicle’s electric drive motor inverter.
What Causes the P0C16 Code?
The P0C16 code can be triggered by several issues, primarily related to the cooling system and the inverter control module. Common causes include:
- Coolant system leak
- Drive motor generator power inverter control module failure
- Engine cooling fan failure
- Water pump failure
What Are the Symptoms of the P0C16 Code?
When the P0C16 code is present, you may notice the following symptoms:
- The high voltage system may not operate
How Serious Is the P0C16 Code?
The P0C16 code is classified as urgent, meaning immediate action is necessary. Failure to address this issue can lead to significant damage to the vehicle’s high voltage system and may pose risks to the driver and passengers.
How to Diagnose the P0C16 Code
To properly diagnose the P0C16 code, a mechanic should:
- Use an OBD-II scanner to confirm the P0C16 code and check for any related codes.
- Inspect the coolant system for leaks.
- Test the drive motor generator power inverter control module.
- Check the operation of the engine cooling fan and the water pump.
Common Repairs for the P0C16 Code
Repair options may include:
- Repairing or replacing leaking coolant components
- Replacing a faulty drive motor generator power inverter control module
- Repairing or replacing the engine cooling fan or water pump
How Much Does It Cost to Fix the P0C16 Code?
The cost to fix the P0C16 code can vary widely based on the specific cause of the issue. Repairs can range from $100 to $200 for minor fixes such as coolant system repairs, to over $1,000 for replacing the inverter control module.
Can I Fix the P0C16 Code Myself?
While some aspects of the P0C16 code can be addressed by a knowledgeable DIYer, such as checking for coolant leaks, it is recommended to seek professional help for a complete diagnosis and repair. Ignoring the code can lead to further damage and costly repairs.
