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 has detected a problem with the electrical circuit that controls one of the coolant pumps. It's like a switch isn't working properly to turn on the pump that helps keep the engine cool.
The P26F5 code is triggered when the engine control module (ECM) detects a low voltage or poor electrical connection in the control circuit of the third coolant pump (Coolant Pump C).
The Coolant Pump C is responsible for circulating coolant through the engine to maintain optimal operating temperature. The control circuit for this pump is monitored by the ECM, and if it detects a voltage lower than expected, it triggers the P26F5 code. This can be due to wiring issues, a faulty pump, or a problem with the ECM itself.
• Check Engine Light is on
• Engine overheating
• Reduced engine performance
• Unusual noise from the engine bay
• Faulty Coolant Pump C
• Poor electrical connection in the control circuit
• Damaged wiring or connectors
• Faulty ECM
ECM: Engine Control Module, the computer that controls the engine's operation.
Coolant: A fluid that circulates through the engine to absorb and dissipate heat.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the voltage at the coolant pump connector.
• Check the operation of the coolant pump.
• Repair or replace damaged wiring or connectors.
• Replace the faulty coolant pump.
• Check and replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $500
Moderate
• Ford Focus
• Chevrolet Cruze
• Toyota Camry
• Regularly inspect and maintain coolant system components.
• Ensure coolant levels are adequate.
• Check electrical connections for corrosion.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if you notice overheating.
• Regular maintenance can prevent such issues.
Check with your vehicle manufacturer for warranty coverage on emissions-related components.
This code has been reported in vehicles with complex cooling systems that use multiple pumps for enhanced engine cooling.
High – Engine overheating can cause severe damage if not addressed promptly.
Driving with an overheating engine can cause severe damage and may not comply with emission regulations.
• Engine at operating temperature
• Coolant system pressurized
The Coolant Pump C is typically located near the engine block or radiator, depending on the vehicle model.
Q: Can I drive with a P26F5 code?
A: It's not recommended to drive with this code as it can lead to engine overheating and damage.
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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