Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means the car's computer thinks there's too much electricity going through a part of the air conditioner's motor. It's like when a light bulb gets too much power and might burn out.
The A/C compressor motor has sensors that measure the current in different phases. This code indicates that the current in Phase U is higher than expected.
The P1D2D code is triggered when the Powertrain Control Module (PCM) detects an abnormally high voltage from the Phase U current sensor in the A/C compressor motor. This can be due to a short circuit, a faulty sensor, or an issue with the wiring.
• A/C not cooling effectively
• Check Engine Light illuminated
• Unusual noise from the A/C system
• Faulty A/C compressor motor current sensor
• Short circuit in the sensor wiring
• Defective Powertrain Control Module (PCM)
PCM: Powertrain Control Module
A/C: Air Conditioning
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connections to the A/C compressor motor.
• Test the A/C compressor motor current sensor for proper operation.
• Replace the faulty A/C compressor motor current sensor.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the PCM if necessary.
• OBD-II scanner
• Multimeter
• Wiring diagram for the vehicle
$200 - $600
Moderate
• Honda Accord
• Honda Civic
• Acura MDX
• Regular maintenance of the A/C system
• Inspect wiring for wear and tear
• Ensure proper electrical connections
Sensor Issue
• Avoid using the A/C until the issue is resolved.
• Consult a professional mechanic for diagnosis and repair.
Check if the vehicle's warranty covers A/C system repairs.
This code has been more common in vehicles with aging electrical systems.
Moderate – Address the issue soon to avoid further damage to the A/C system.
Driving with a malfunctioning A/C system is not a safety risk, but it may lead to discomfort and further damage.
• Vehicle engine running
• A/C system activated
The A/C compressor motor is typically located at the front of the engine bay, near the serpentine belt.
Q: Can I still drive my car with this code?
A: Yes, but it's best to get it fixed soon to prevent further damage.
Q: Will this code affect my car's performance?
A: It may affect the cooling efficiency of your A/C system.
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