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 has detected a problem with the control circuit for the air conditioner's compressor. It's like when a switch is stuck in the 'on' position, and the air conditioner can't work properly.
The car's computer monitors the A/C compressor control circuit to ensure it operates within a specified range. If it detects a high voltage condition, it triggers this code.
The P06A2 code indicates that the Powertrain Control Module (PCM) has detected a high voltage condition in the variable A/C compressor control circuit. This could be due to a short to voltage, a faulty compressor, or a problem with the wiring or connectors in the circuit.
• A/C not working properly
• Check engine light illuminated
• Unusual noises from the A/C system
• Inconsistent cooling performance
• Faulty A/C compressor
• Wiring issues in the A/C control circuit
• Faulty PCM
• Short to voltage in the control circuit
• Faulty control relay
PCM: Powertrain Control Module
A/C: Air Conditioning
OBD-II: On-Board Diagnostics II
• Check for any other related trouble codes.
• Inspect the wiring and connectors in the A/C control circuit for damage or corrosion.
• Test the A/C compressor for proper operation.
• Check for a short to voltage in the circuit.
• Test the control relay and PCM for faults.
• Repair or replace damaged wiring or connectors.
• Replace the faulty A/C compressor.
• Repair any short circuits found.
• Replace the control relay if faulty.
• Replace the PCM if necessary.
• OBD-II scanner
• Multimeter
• Wiring diagram
• Basic hand tools
$150 - $1000
Moderate
• Toyota Camry
• Honda Accord
• Ford Focus
• Regularly inspect A/C system components.
• Ensure wiring and connectors are free from corrosion.
• Perform routine maintenance on the A/C system.
Sensor Issue
• Avoid using the A/C until the issue is resolved.
• Consult a professional mechanic for accurate diagnosis.
• Do not ignore the check engine light.
Check with your vehicle manufacturer for warranty coverage on the A/C system components.
This code has been reported in vehicles with aging A/C systems or after improper repairs.
Moderate – The A/C system may not function correctly, affecting comfort but not immediate vehicle safety.
Operating a vehicle with a malfunctioning A/C system is not a safety hazard, but comfort and visibility (defogging) can be affected.
• Engine running
• A/C system activated
The A/C compressor is typically located at the front of the engine, driven by the serpentine belt.
Q: Can I drive with a P06A2 code?
A: Yes, but the A/C system may not work properly, which can affect comfort.
Q: Will fixing this code improve fuel efficiency?
A: Fixing the A/C system may slightly improve fuel efficiency if the compressor was causing excessive load.
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