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 is saying there's a problem with the electric pump that helps keep the engine cool. It's like if a fan in your room stopped working and the room got hot.
The P261D code indicates that the engine control module (ECM) has detected a high voltage condition in the control circuit of the secondary coolant pump (Coolant Pump B).
The P261D code is triggered when the ECM detects a voltage level that is higher than expected in the control circuit for the secondary coolant pump. This pump is responsible for circulating coolant to help regulate engine temperature, especially under certain operating conditions.
• Check Engine Light illuminated
• Engine overheating
• Reduced engine performance
• Faulty coolant pump B
• Open or shorted wiring in the coolant pump circuit
• Faulty ECM or control module
ECM: Engine Control Module
OBD-II: On-Board Diagnostics, Second Generation
• 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 damaged wiring or connectors.
• Replace the faulty coolant pump B.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $600
Moderate
• Toyota Camry
• Ford F-150
• BMW 3 Series
• Regular maintenance checks of the cooling system
• Ensure coolant levels are adequate
• Inspect wiring for damage periodically
Sensor Issue
• Do not drive the vehicle if overheating occurs.
• Seek professional diagnosis if unsure about the repairs.
Repairs may be covered under the vehicle's powertrain warranty if applicable.
This code has been more common in vehicles with electric water pumps, which have become more prevalent in modern cars.
High – This issue can lead to engine overheating, which can cause severe damage if not addressed promptly.
Driving with an overheating engine can lead to severe engine damage and poses a safety risk.
• Engine at operating temperature
• Electrical system functioning properly
The secondary coolant pump is typically located near the engine or radiator, depending on the vehicle model.
Q: Can I drive with a P261D code?
A: It's not recommended to drive with this code active, as it can lead to engine overheating.
Q: How do I reset the P261D code?
A: After repairs, use an OBD-II scanner to clear the code, but ensure the issue is fixed to prevent recurrence.
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