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 is saying there is a problem with the electric pump that helps keep the engine cool. It's not getting enough power to work right.
The P2602 code is triggered when the engine control module (ECM) detects a low voltage condition in the control circuit of the auxiliary coolant pump.
The P2602 code indicates a malfunction in the control circuit of the auxiliary electric coolant pump. This pump is responsible for circulating coolant through the engine to maintain optimal operating temperatures. A 'low' condition suggests insufficient voltage or a break in the circuit, preventing the pump from functioning correctly.
• Engine overheating
• Check Engine Light illuminated
• Reduced engine performance
• Faulty coolant pump
• Blown fuse or bad relay
• Wiring issues or poor electrical connections
ECM: Engine Control Module
Auxiliary Coolant Pump: An electric pump that helps circulate coolant through the engine.
• Check for any blown fuses related to the coolant pump circuit.
• Inspect the wiring and connectors for damage or corrosion.
• Test the coolant pump for proper operation and voltage supply.
• Replace the faulty coolant pump.
• Repair or replace damaged wiring or connectors.
• Replace blown fuses or faulty relays.
• Multimeter
• OBD-II scanner
• Basic hand tools
$150 - $500
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect and maintain the cooling system.
• Ensure electrical connections are clean and secure.
• Replace coolant pump at recommended intervals.
Sensor Issue
• Do not ignore the Check Engine Light.
• Avoid driving the vehicle if it shows signs of overheating.
• Consult a professional mechanic for a thorough diagnosis.
Check with your vehicle's manufacturer for warranty coverage on the cooling system components.
The P2602 code has been associated with issues in vehicles where auxiliary coolant pumps are used to enhance engine cooling efficiency.
High – Driving with an overheating engine can cause severe damage.
Ignoring this code can lead to engine overheating, which may result in costly repairs and potential safety hazards.
• Engine at operating temperature
• Ignition in the 'On' position
The auxiliary coolant pump is typically located near the engine or radiator, depending on the vehicle model.
Q: Can I drive my car with a P2602 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 P2602 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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