Engine-CodesBuick – P1535 Buick

P1535 Buick Code - A/C High Side Temperature Sensor Circuit

Quick Answer

The P1535 Buick code indicates a problem with the A/C high side temperature sensor circuit in the vehicle. Common causes include Faulty high side temperature sensor, Wiring issues or shorts in the sensor circuit, Corrosion or damage to sensor connectors. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
P1535 Buick indicates A/C High Side Temperature Sensor Circuit.
Common causes
Common causes include Faulty high side temperature sensor, Wiring issues or shorts in the sensor circuit, Corrosion or damage to sensor connectors.
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1535 Buick Description

The P1535 Buick code indicates a problem with the A/C high side temperature sensor circuit in the vehicle. The high side temperature sensor is responsible for monitoring the temperature of the high-pressure side of the air conditioning system. This information is crucial for the proper operation of the A/C system, as it helps regulate the pressure and temperature of the refrigerant.

OBDII Code P1535 Buick - A/C High Side Temperature Sensor Circuit
P1535 Buick Code - A/C High Side Temperature Sensor Circuit

Common Causes of P1535 Buick

  1. Faulty high side temperature sensor
  2. Wiring issues or shorts in the sensor circuit
  3. Corrosion or damage to sensor connectors
  4. Issues with the A/C control module
  5. Low refrigerant levels in the A/C system

Symptoms of P1535 Buick

  1. A/C system not cooling effectively
  2. A/C system blowing warm air
  3. A/C system not working at all
  4. Check Engine Light illuminated
  5. Unusual noises coming from the A/C system

How to Fix P1535 Buick

  1. Diagnose the issue by using a scan tool to retrieve the trouble code and test the high side temperature sensor.
  2. Inspect the wiring and connectors for any signs of damage, corrosion, or shorts.
  3. Replace the high side temperature sensor if it is found to be faulty.
  4. Clear the trouble code from the vehicle's computer and test the A/C system to ensure proper operation.
  5. If the issue persists, further diagnostic testing may be needed to identify any additional underlying problems.

Cost to Fix P1535 Buick

The cost of repairing a P1535 Buick code related to the A/C high side temperature sensor circuit can vary depending on the specific cause of the issue. In general, the cost of a new high side temperature sensor can range from $50 to $150, depending on the vehicle make and model. Labor costs for this repair can range from $100 to $300, depending on the shop's hourly rate and the complexity of the repair. Overall, the total cost is typically between $150 and $450. Keep in mind that these are rough estimates, and actual costs may vary based on various factors. It is advisable to consult with a trusted auto repair shop for a more accurate estimate.

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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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