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 a sensor that helps control the car's air conditioning system. It's like when a thermometer isn't working right, so you can't tell how hot or cold it is.
The code indicates that the voltage level detected by the A/C coolant heater phase V voltage sensor 'A' is lower than the expected range.
The A/C coolant heater uses sensors to monitor the voltage levels in the system. The 'A' circuit is responsible for ensuring the correct voltage is maintained for efficient operation. A 'low' reading suggests there might be an issue with the sensor, wiring, or the component itself, leading to inefficient heating or cooling.
• Ineffective air conditioning performance
• Check engine light is on
• Unusual noises from the A/C system
• Faulty A/C coolant heater voltage sensor
• Damaged or corroded wiring or connectors
• Faulty A/C control module
A/C: Air Conditioning
HVAC: Heating, Ventilation, and Air Conditioning
OBD-II: On-Board Diagnostics II
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the A/C coolant heater voltage sensor with a multimeter.
• Replace the faulty voltage sensor.
• Repair or replace damaged wiring or connectors.
• Replace the A/C control module if necessary.
• OBD-II scanner
• Multimeter
• Screwdriver set
$100 - $300
Moderate
• Honda Accord
• Honda Civic
• Honda CR-V
• Regular maintenance checks of the A/C system
• Ensure connectors are clean and secure
• Use high-quality replacement parts
Sensor Issue
• Have your vehicle inspected by a professional if you notice A/C performance issues.
• Do not ignore the check engine light.
Check with your vehicle manufacturer for specific warranty coverage on electronic components.
This code is relatively uncommon and typically associated with specific models and years.
Moderate – It may not affect immediate drivability but should be addressed to ensure A/C efficiency.
Operating a vehicle with a malfunctioning A/C system may lead to discomfort and potential visibility issues due to defrosting inefficiencies.
• Vehicle must be running
• A/C system should be engaged
The A/C coolant heater voltage sensor is typically located near the A/C compressor or within the HVAC unit.
Q: Can I drive my car with this code?
A: Yes, but it's best to fix it soon to ensure your A/C works properly.
Q: Will this affect my car's engine?
A: No, this code specifically relates to the A/C system.
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