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's air conditioning that controls how much cold air comes out. It's like when a water tap is stuck and can't adjust the flow of water.
The code indicates that the control circuit for the air conditioning refrigerant expansion valve actuator is experiencing a high voltage condition.
The A/C refrigerant expansion valve actuator is responsible for regulating the flow of refrigerant in the air conditioning system, which is crucial for maintaining the desired cabin temperature. A 'Control Circuit High' condition suggests that the voltage in the circuit is higher than expected, possibly due to a short circuit or a faulty actuator.
• Air conditioning not cooling properly
• Unusual noises from the A/C system
• A/C system not responding to controls
• Faulty expansion valve actuator
• Short circuit in the wiring
• Faulty control module
Actuator: A component that moves or controls a mechanism or system.
Refrigerant: A substance used in a heat cycle to transfer heat from one area to another.
• Check for any stored codes and clear them to see if they return.
• Inspect the wiring and connections to the expansion valve actuator for damage.
• Test the actuator's resistance and compare it to specifications.
• Replace the faulty expansion valve actuator.
• Repair or replace damaged wiring.
• Replace the control module if necessary.
• OBD-II scanner
• Multimeter
• Screwdriver set
$150 - $500
Moderate
• Ford Focus
• Chevrolet Malibu
• Toyota Camry
• Regularly inspect A/C system components.
• Ensure proper maintenance of electrical connections.
• Avoid overloading the A/C system.
Sensor Issue
• Avoid using the A/C system until the issue is resolved.
• Consult a professional mechanic for accurate diagnosis.
Check vehicle warranty for coverage on electrical components.
This code has been associated with issues in vehicles with high mileage or those that have experienced previous electrical problems.
Moderate – It should be addressed soon to ensure proper A/C functionality.
Driving with a malfunctioning A/C system is not a safety hazard but can lead to discomfort and potential further damage.
• Vehicle must be running.
• A/C system should be activated.
The expansion valve actuator is typically located near the evaporator within the A/C system, often under the dashboard.
Q: Can I drive with this code?
A: Yes, but the A/C may not work properly, leading to discomfort.
Q: Will this code affect other systems?
A: Primarily affects the A/C system, but unresolved electrical issues can potentially impact other components.
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Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking power, ground, and continuity in body-system circuits.
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Universal · Fuse kit
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Useful when body electrical faults trace back to blown fuses or shared circuits.
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Fitment Required · Vehicle-fitment part
Relevant when EVAP diagnosis points toward purge-flow or purge-control faults.
EVAP diagnosis often includes purge-flow and valve-control faults.
Confirm the failed valve and exact fitment before buying parts.
View options on AmazonThese parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.