Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This means the car's computer thinks the pump that helps cool the turbo is getting too much power.
The P15CC code indicates that the engine control module (ECM) has detected a high voltage condition in the turbocharger coolant pump control circuit.
The turbocharger coolant pump is responsible for circulating coolant to prevent the turbocharger from overheating. The ECM monitors the voltage in the pump's control circuit to ensure it operates correctly. A 'high' signal indicates an unexpected increase in voltage, suggesting a possible short circuit or electrical fault.
• Check Engine Light is on
• Overheating turbocharger
• Reduced engine performance
• Faulty turbocharger coolant pump
• Wiring issues such as short circuits
• Faulty ECM
ECM: Engine Control Module, the computer that controls engine functions.
Turbocharger: A device that increases an engine's efficiency and power by forcing extra air into the combustion chamber.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage.
• Test the turbocharger coolant pump for proper operation.
• Replace the turbocharger coolant pump if faulty.
• Repair or replace damaged wiring or connectors.
• Replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $600
Moderate
• Volkswagen Golf
• Audi A4
• BMW 3 Series
• Regularly inspect and maintain the cooling system.
• Ensure wiring is intact and free from corrosion.
• Use quality coolant as per manufacturer specifications.
Sensor Issue
• Do not ignore the Check Engine Light.
• Seek professional diagnosis if unsure.
• Avoid driving the vehicle if overheating occurs.
Check with your vehicle manufacturer for warranty coverage on emissions-related components.
This code is relatively common in turbocharged vehicles, especially those with high mileage or poor maintenance records.
Moderate – Addressing this issue promptly can prevent engine damage.
Driving with an overheating turbocharger can lead to engine damage and is not recommended.
• Engine running
• Turbocharger under load
The turbocharger coolant pump is typically located near the turbocharger, often on the engine block or nearby.
Q: Can I drive with the P15CC code?
A: It's not recommended to drive for long periods with this code, as it can lead to overheating and engine damage.
Q: How can I prevent this code from appearing?
A: Regular maintenance and inspections of the cooling system can help prevent this code.
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