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Engine-Codes – Generic – P1464

P1464 Code - Air Conditioning Demand Out Of Self Test Range

Quick Answer

The P1464 diagnostic trouble code indicates that the air conditioning demand is out of the self-test range. Common causes include Faulty air conditioning compressor clutch, Malfunctioning air conditioning pressure sensor, Refrigerant leak in the air conditioning system. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1464 indicates Air Conditioning Demand Out Of Self Test Range.
Common causes
Common causes include Faulty air conditioning compressor clutch, Malfunctioning air conditioning pressure sensor, Refrigerant leak in the air conditioning system.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Aug 18, 2024
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Code P1464 Description

The P1464 diagnostic trouble code indicates that the air conditioning demand is out of the self-test range. This means that the vehicle's on-board computer has detected an issue with the air conditioning system that is preventing it from operating within the expected parameters. This code can affect the vehicle's performance by potentially causing issues with the air conditioning system, leading to a lack of cooling or improper operation. If not addressed, this issue can result in decreased comfort for the vehicle occupants, especially during hot weather.

OBDII Code P1464 - Air Conditioning Demand Out Of Self Test Range
P1464 Code - Air Conditioning Demand Out Of Self Test Range

Common Causes of P1464

  1. Faulty air conditioning compressor clutch.
  2. Malfunctioning air conditioning pressure sensor.
  3. Refrigerant leak in the air conditioning system.
  4. Wiring issues or electrical faults in the air conditioning system.
  5. Faulty air conditioning control module.

Symptoms of P1464

  1. Lack of cool air coming from the air conditioning system.
  2. Inconsistent or weak airflow from the vents.
  3. Unusual noises coming from the air conditioning system.
  4. The air conditioning system may not turn on at all.
  5. The vehicle's engine may run hotter than usual.

How to Fix P1464

  1. Diagnose the specific cause of the issue by performing a comprehensive inspection of the air conditioning system.
  2. Check the air conditioning compressor clutch and pressure sensor for proper operation.
  3. Repair any wiring or electrical faults in the air conditioning system.
  4. If a refrigerant leak is detected, repair the leak and recharge the air conditioning system.
  5. Reset the vehicle's on-board computer to clear the error code and ensure proper operation of the air conditioning system.

Cost to Fix P1464

The typical repair costs for resolving a P1464 code related to the air conditioning system can vary depending on the specific cause of the issue. On average, the repair costs for this type of problem can range from $150 to $500, including parts and labor. However, it is essential to note that the actual cost could be higher or lower based on the severity of the issue, the vehicle's make and model, and the rates charged by the auto repair shop. Additionally, diagnosis time and labor rates can fluctuate, so it is advisable to consult with a trusted mechanic or shop for a precise estimate.

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Code P1464 Information for Specific Makes

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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