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 the sensor that checks how fast the coolant pump is spinning isn't working right.
The P2CC9 code is triggered when the Engine Control Module (ECM) detects a problem with the range or performance of the coolant pump speed sensor.
The coolant pump speed sensor monitors the rotational speed of the coolant pump. The ECM uses this data to ensure the pump is operating within the expected range. If the sensor provides readings outside the normal range or inconsistent data, the ECM will log the P2CC9 code.
• Check Engine Light is on
• Engine overheating
• Erratic temperature gauge readings
• Faulty coolant pump speed sensor
• Wiring issues or poor electrical connections
• Malfunctioning coolant pump
ECM: Engine Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connections to the coolant pump speed sensor.
• Test the coolant pump speed sensor for proper operation.
• Replace the faulty coolant pump speed sensor.
• Repair or replace damaged wiring or connectors.
• Replace the coolant pump if it is malfunctioning.
• OBD-II scanner
• Multimeter
• Wrench set
$150 - $400
Moderate
• BMW 3 Series
• Audi A4
• Volkswagen Passat
• Regular maintenance of the cooling system.
• Ensure all electrical connections are secure and free of corrosion.
• Replace coolant pump and sensor at recommended intervals.
Sensor Issue
• Do not ignore the Check Engine Light.
• Monitor engine temperature closely.
• Have the vehicle inspected by a professional if overheating occurs.
Check with your vehicle manufacturer for warranty coverage on the cooling system components.
This code is relatively uncommon but can occur in vehicles with aging cooling systems or those that have experienced electrical issues.
Moderate – Addressing this issue promptly can prevent engine overheating.
Driving with an overheating engine can cause severe damage and may not be safe.
• Engine at operating temperature
• Vehicle stationary or at idle
The coolant pump speed sensor is typically located near the engine's coolant pump.
Q: Can I drive with a P2CC9 code?
A: It's not recommended to drive for long periods with this code as it may lead to engine overheating.
Q: How do I reset the Check Engine Light after fixing the issue?
A: Use an OBD-II scanner to clear the code after repairs are completed.
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