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 the electric coolant pump is stuck in the 'on' position and won't turn off.
The vehicle's engine control module (ECM) has detected that the electric coolant pump is continuously running when it should not be.
The P261F code is triggered when the ECM detects that the control circuit for the electric coolant pump (Coolant Pump A) is stuck in the 'on' position. This could be due to a malfunction in the pump, a wiring issue, or a problem with the ECM itself.
• Check Engine Light is on
• Engine overheating
• Battery drain due to the pump running continuously
• Faulty electric coolant pump
• Short circuit in the wiring
• Faulty engine control module (ECM)
ECM: Engine Control Module
OBD-II: On-Board Diagnostics II
• Use an OBD-II scanner to confirm the P261F code.
• Inspect the wiring and connectors to the coolant pump 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 ECM if it is determined to be faulty.
• OBD-II scanner
• Multimeter
• Wrench set
$200 - $600
Moderate
• Toyota Camry
• Ford Focus
• Chevrolet Cruze
• Regularly inspect coolant pump wiring for damage.
• Ensure proper coolant levels are maintained.
• Perform routine vehicle maintenance checks.
Engine Performance
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional mechanic.
Check with the vehicle manufacturer for warranty coverage on the coolant pump.
This code has been associated with vehicles that use electric coolant pumps to improve fuel efficiency.
Moderate – While the vehicle may still be drivable, continuous operation of the pump can lead to battery drain or engine overheating.
Driving with a malfunctioning coolant pump can lead to engine overheating, which is a safety hazard.
• Engine running
• Coolant pump operation
The electric coolant pump is typically located near the front of the engine, close to the radiator.
Q: Can I drive with a P261F code?
A: It's not recommended to drive for long periods with this code, as it can lead to engine overheating.
Q: How do I reset the P261F code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue is fixed, the code should not return.
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