Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's coolant pump got too hot and turned off to protect itself.
The coolant pump has an internal temperature sensor that monitors its heat level. If it gets too hot, it shuts down to prevent damage.
The P15D1 code indicates that the internal temperature of the coolant pump has exceeded the threshold limit, causing the pump to cut off to prevent overheating and potential damage.
• Engine overheating
• Coolant warning light on
• Reduced engine performance
• Blocked coolant passages
• Faulty coolant pump
• Low coolant level
Coolant: A fluid that circulates through the engine to absorb and dissipate heat.
Coolant Pump: A device that circulates coolant through the engine and radiator.
• Check coolant level and top up if necessary.
• Inspect coolant pump for blockages or damage.
• Test the temperature sensor on the coolant pump.
• Replace the coolant pump if faulty.
• Clear any blockages in the coolant system.
• Refill and bleed the coolant system.
• Coolant pressure tester
• Multimeter
• Wrench set
$200 - $600
Moderate
• Chevrolet Cruze
• Buick Encore
• GMC Terrain
• Regularly check coolant levels.
• Perform routine coolant system maintenance.
• Inspect the coolant pump during service intervals.
Engine Performance
• Do not drive the vehicle if the engine is overheating.
• Seek professional diagnosis and repair promptly.
Check vehicle warranty for coverage on coolant system components.
This code has been associated with certain models prone to coolant pump issues due to design flaws.
High – Continuing to drive can cause engine damage.
Operating a vehicle with an overheating engine can lead to severe engine damage and safety hazards.
• Engine at operating temperature
• Coolant system under pressure
The coolant pump is typically located at the front of the engine, near the radiator.
Q: Can I drive with a P15D1 code?
A: It's not recommended to drive with this code as it can lead to engine overheating and damage.
Q: How do I know if my coolant pump is failing?
A: Signs include engine overheating, coolant leaks, and unusual noises from the pump area.
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