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 a part that helps keep the engine cool is always on, even when it's not supposed to be. It's like a fan that won't stop spinning.
The engine control module (ECM) has detected that the control circuit for the secondary coolant pump is stuck in the 'on' position.
P261E is a diagnostic trouble code that indicates a malfunction in the control circuit of the secondary coolant pump. The ECM monitors the status of this circuit and expects it to turn on and off as needed. If the circuit remains on when it should not, the ECM triggers this code.
• Check Engine Light is on
• Engine overheating
• Reduced engine performance
• Faulty coolant pump B
• Short circuit in the wiring
• Faulty ECM
ECM: Engine Control Module
OBD-II: On-Board Diagnostics II
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the coolant pump B for proper operation.
• Replace or repair the wiring harness if damaged.
• Replace coolant pump B if faulty.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Toyota Camry
• Honda Accord
• Ford Fusion
• Regularly inspect cooling system components.
• Ensure coolant levels are maintained.
• Perform routine vehicle diagnostics.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if unsure.
• Monitor engine temperature to prevent overheating.
Check with the vehicle manufacturer as some components may be covered under warranty.
This code has been associated with issues in vehicles with electric coolant pumps, particularly in models with hybrid or advanced cooling systems.
High – Can lead to engine overheating if not addressed promptly.
Driving with an overheating engine can cause significant damage and may void warranties.
• Engine at operating temperature
• Electrical system fully operational
The secondary coolant pump is typically located near the engine or radiator.
Q: Can I drive with a P261E code?
A: It's not recommended as it can lead to engine overheating.
Q: How do I reset the Check Engine Light?
A: After repairs, use an OBD-II scanner to clear the code.
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