Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer thinks the pump that moves coolant around the engine isn't spinning at the right speed.
The engine control module (ECM) monitors the RPM of the coolant pump. If it detects that the RPM is outside the expected range, it triggers this code.
The P15D0 code is set when the ECM detects that the coolant pump's RPM is not within the specified range. This could be due to a malfunctioning pump, electrical issues, or a problem with the ECM itself.
• Check Engine Light illuminated
• Engine overheating
• Reduced engine performance
• Faulty coolant pump
• Electrical issues in the coolant pump circuit
• Faulty engine control module (ECM)
ECM: Engine Control Module
RPM: Revolutions Per Minute
• Use an OBD-II scanner to confirm the code and check for other related codes.
• Inspect the coolant pump and its electrical connections for damage or corrosion.
• Test the coolant pump's operation and RPM.
• Replace the faulty coolant pump.
• Repair or replace damaged wiring or connectors in the coolant pump circuit.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$200 - $600
Moderate
• Chevrolet Malibu
• Buick Regal
• GMC Terrain
• Regularly inspect and maintain the cooling system.
• Ensure coolant levels are adequate.
• Check for leaks and repair them promptly.
Engine Performance
• Do not ignore the Check Engine Light.
• Monitor engine temperature closely.
• Seek professional diagnostic help if unsure.
Check with the vehicle manufacturer for warranty coverage on the cooling system components.
This code has been known to appear in vehicles with high mileage or those that have experienced cooling system neglect.
High – This issue can lead to engine overheating, which may cause severe engine damage if not addressed promptly.
Driving with an overheating engine can be dangerous and may lead to legal liabilities if it results in an accident.
• Engine at operating temperature
• Coolant system pressurized
The coolant pump is typically located at the front of the engine, near the serpentine belt.
Q: Can I drive with a P15D0 code?
A: It's not recommended to drive with this code as it can lead to engine overheating.
Q: What happens if I ignore the P15D0 code?
A: Ignoring this code can result in severe engine damage due to overheating.
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