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 a pump that helps keep the engine cool isn't working right. It's like when a fan stops spinning on a hot day.
The P2D27 code indicates a problem with the control circuit for the Coolant Pump F, suggesting it is not operating as expected or is stuck in the 'off' position.
The Coolant Pump F is responsible for circulating coolant through the engine to maintain optimal temperature. The control circuit monitors and manages the pump's operation. If the circuit detects that the pump is not performing as expected or is stuck off, it triggers the P2D27 code.
• Engine overheating
• Check engine light illuminated
• Reduced engine performance
• Faulty coolant pump
• Damaged wiring or connectors in the control circuit
• Malfunctioning control module
Coolant: A fluid that absorbs heat from the engine and helps maintain a safe operating temperature.
Control Circuit: An electrical circuit that manages the operation of a component.
• Check for any blown fuses related to the coolant pump.
• Inspect wiring and connectors for damage or corrosion.
• Test the coolant pump for proper operation.
• Replace the faulty coolant pump.
• Repair or replace damaged wiring or connectors.
• Replace the malfunctioning control module.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $600
Moderate
• Vehicle 1
• Vehicle 2
• Vehicle 3
• Regular maintenance checks of the cooling system.
• Ensure coolant levels are adequate.
• Inspect wiring for wear and tear periodically.
Engine Performance
• Do not ignore the check engine light.
• Monitor engine temperature closely.
• Seek professional diagnosis if unsure.
Check with the vehicle manufacturer for specific warranty coverage on cooling system components.
This code has been associated with vehicles experiencing cooling system failures, particularly in models with electric coolant pumps.
High – Engine overheating can lead to severe damage if not addressed promptly.
Operating a vehicle with an overheating engine can cause significant damage and may void warranties.
• Engine at operating temperature
• Vehicle stationary
The coolant pump is typically located near the front of the engine, connected to the engine block or cylinder head.
Q: Can I drive my car with this code?
A: It's not recommended to drive with this code as it can lead to engine overheating.
Q: How can I reset the check engine light?
A: Fix the issue causing the code, then use an OBD-II scanner to clear the code.
Pro · Four-system diagnostics
A handheld scanner aimed at engine, transmission, ABS, and airbag diagnostic work.
Chassis and ABS faults usually need a scanner that can read brake-system data directly.
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