Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the part of the car that controls the air conditioner's power. It's like a switch that isn't working right, so the air conditioner might not turn on.
The P0EC6 code indicates an issue with the electrical circuit that controls the relay for the air conditioning power supply. This could be due to an open circuit, which means the electrical path is broken.
The P0EC6 code is set when the Engine Control Module (ECM) detects an open circuit in the A/C power supply relay control circuit. This relay is responsible for providing power to the air conditioning system, and an open circuit can prevent the relay from functioning properly.
• Air conditioning not working
• A/C system not turning on
• Check engine light illuminated
• Faulty A/C power supply relay
• Open or shorted wiring in the A/C relay circuit
• Faulty ECM
ECM: Engine Control Module
Relay: An electrical switch that opens and closes under the control of another electrical circuit.
• Check the A/C relay for proper operation.
• Inspect the wiring and connectors in the A/C relay circuit for damage.
• Test the ECM for proper functionality.
• Replace the faulty A/C power supply relay.
• Repair or replace damaged wiring in the relay circuit.
• Replace the ECM if it is found to be faulty.
• Multimeter
• Relay tester
• OBD-II scanner
$100 - $500
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regularly inspect and maintain the A/C system.
• Ensure electrical connections are secure and free of corrosion.
• Have the vehicle's electrical system checked periodically.
Electrical Circuit Issue
• If the A/C is not working, avoid using it until the issue is resolved.
• Consult a professional mechanic if you're unsure about the repairs.
Check with your vehicle manufacturer for warranty coverage on electrical components.
This code is often associated with hybrid and electric vehicles due to their complex electrical systems.
Moderate – The air conditioning may not function, which can be uncomfortable but not immediately damaging to the vehicle.
Driving without a functioning A/C in hot weather can lead to driver discomfort and potential safety issues due to heat stress.
• Vehicle ignition in the ON position.
• A/C system activated.
The A/C power supply relay is typically located in the fuse box under the hood or inside the vehicle.
Q: Can I drive with the P0EC6 code?
A: Yes, but the air conditioning may not work, which could be uncomfortable in hot weather.
Q: How can I reset the P0EC6 code?
A: Fix the underlying issue first, then use an OBD-II scanner to clear the code.
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