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Engine-Codes – GMC – B0164 GMC

B0164 GMC Code - Inside Air Temperature Sensor Circuit Range/Performance

Quick Answer

The B0164 GMC diagnostic trouble code refers to the Inside Air Temperature Sensor Circuit Range/Performance. Common causes include Faulty inside air temperature sensor, Damaged wiring or connectors related to the sensor, HVAC control module malfunction. 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
B0164 GMC indicates Inside Air Temperature Sensor Circuit Range/Performance.
Common causes
Common causes include Faulty inside air temperature sensor, Damaged wiring or connectors related to the sensor, HVAC control module malfunction.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code B0164 GMC Description

The B0164 GMC diagnostic trouble code refers to the Inside Air Temperature Sensor Circuit Range/Performance. This code is triggered when the HVAC (Heating, Ventilation, and Air Conditioning) system's inside air temperature sensor is reporting values that are outside of the expected range or performance parameters. The inside air temperature sensor is responsible for measuring the temperature inside the vehicle's cabin, which is crucial for maintaining a comfortable interior climate.

OBDII Code B0164 GMC - Inside Air Temperature Sensor Circuit Range/Performance
B0164 GMC Code - Inside Air Temperature Sensor Circuit Range/Performance

Common Causes of B0164 GMC

  1. Faulty inside air temperature sensor
  2. Damaged wiring or connectors related to the sensor
  3. HVAC control module malfunction
  4. Environmental factors such as extreme temperatures affecting sensor performance

Symptoms of B0164 GMC

  1. Inaccurate temperature readings on the HVAC system display
  2. HVAC system blowing hot or cold air inconsistently
  3. Inability to adjust the temperature settings inside the cabin
  4. Fogging or icing of windows not being properly addressed by the HVAC system

How to Fix B0164 GMC

  1. Begin by diagnosing the issue using a scan tool to retrieve the specific trouble code and pinpoint the faulty component.
  2. Inspect the wiring and connectors associated with the inside air temperature sensor for any signs of damage or corrosion. Repair or replace as necessary.
  3. Test the inside air temperature sensor itself to ensure it is functioning correctly. Replace the sensor if it is found to be faulty.
  4. If the sensor and wiring are in good condition, the issue may lie with the HVAC control module. Perform further diagnostics to determine if the control module needs to be repaired or replaced.
  5. Clear the trouble code from the vehicle's computer system and test the HVAC system to ensure that the inside air temperature sensor is now operating within the expected range.

Cost to Fix B0164 GMC

The cost of repairing the Inside Air Temperature Sensor Circuit Range/Performance issue can vary depending on the specific cause of the problem and the labor rates at the auto repair shop. In general, the cost of parts for this repair could range from $50 to $200, with labor costs adding an additional $80 to $150 per hour. The total repair cost could therefore fall between $150 and $500, but it's advisable to obtain a detailed quote from a reputable auto repair shop based on the specific circumstances of your vehicle. Rates at dealerships or in metropolitan areas may be higher, while independent shops may offer more competitive pricing.

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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.

Frequently Asked Questions about B0164 GMC Code

1. What does the OBDII code B0164 GMC indicate?

- Code B0164 GMC indicates a problem with the Inside Air Temperature Sensor Circuit, specifically pointing to a range/performance issue.

2. What are the common symptoms of the B0164 GMC code?

- Symptoms may include inconsistent cabin temperature, the air conditioning system not functioning correctly, and the temperature display showing incorrect readings.

3. What can cause the B0164 GMC code to be triggered?

- Causes can include a faulty inside air temperature sensor, poor electrical connections to the sensor, or a problem with the climate control unit.

4. How can I troubleshoot the B0164 GMC code?

- Start by checking the inside air temperature sensor for any visible damage or loose connections. Also, inspect the wiring and connectors for corrosion or damage. If everything appears normal, testing the sensor’s resistance with a multimeter might be necessary.

5. What steps are involved in repairing code B0164 on a GMC vehicle?

- Repair steps typically involve inspecting and cleaning the sensor’s connections, replacing the inside air temperature sensor if it is faulty, and checking the climate control unit for faults. Resetting the climate control system's settings might also be necessary.

6. Is it safe to drive my GMC with the B0164 code active?

- While it is generally safe to drive with this code active, the comfort of the vehicle might be compromised, and the HVAC system may not operate efficiently. It's best to address the issue promptly for optimal comfort.

7. How do I reset the inside air temperature sensor after repairs are made for code B0164?

- After repairs, you can reset the sensor by disconnecting the battery for a few minutes or by using an OBDII scanner to clear the code from the vehicle's computer system.

8. Are there any specific tools required to diagnose the B0164 GMC code?

- Diagnosing this code typically requires an OBDII scanner to read and clear the code, along with a multimeter for testing sensor functionality and wiring integrity.

9. Can a malfunctioning inside air temperature sensor affect the fuel efficiency of my GMC?

- While it primarily affects comfort, a malfunctioning inside air temperature sensor can lead the HVAC system to run inefficiently, potentially having a minor impact on fuel efficiency due to increased load on the engine.

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