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 thinks there's a problem with a pump that helps keep the engine cool. It's like when a fan doesn't turn on to cool you down on a hot day.
The P2C49 code indicates an issue with the control circuit of the coolant pump D, which is not performing as expected or is stuck in the 'off' position.
The engine control module (ECM) monitors the operation of the coolant pump D. If the ECM detects that the pump is not operating within the expected parameters or is stuck off, it triggers the P2C49 code. This can affect the engine's cooling system performance.
• Engine overheating
• Check Engine Light illuminated
• Reduced engine performance
• Faulty coolant pump D
• Wiring issues in the coolant pump circuit
• Faulty ECM or software issue
ECM: Engine Control Module, the computer that controls engine functions.
Coolant Pump: A device that circulates coolant to keep the engine at the correct temperature.
• Scan the vehicle for codes and freeze frame data.
• Inspect the wiring and connectors for damage or corrosion.
• Test the coolant pump D for proper operation.
• Replace the faulty coolant pump D.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $600
Moderate
• BMW 3 Series
• Mercedes-Benz C-Class
• Audi A4
• Regular maintenance of the cooling system
• Check for leaks and ensure proper coolant levels
• Inspect electrical connections periodically
Engine Performance
• Avoid driving the vehicle if overheating occurs.
• Regularly check coolant levels and top up if necessary.
Check with the vehicle manufacturer for warranty coverage on the cooling system components.
This code has been associated with issues in vehicles with complex cooling systems, especially in European models.
High – Addressing this issue promptly is important to prevent engine damage due to overheating.
Driving with an overheating engine can cause severe damage and is unsafe. Address this issue promptly.
• Engine at operating temperature
• Vehicle stationary or in a safe testing environment
The coolant pump is typically located at the front of the engine, near the radiator.
Q: Can I drive my car with a P2C49 code?
A: It's not recommended to drive with this code, as it may lead to engine overheating.
Q: How can I prevent this code from appearing?
A: Regular maintenance of the cooling system and checking for leaks can help prevent this issue.
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