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Engine-Codes – Generic – B0164

B0164 Code - Inside Air Temperature Sensor Circuit Range/Performance

Quick Answer

The B0164 diagnostic trouble code (DTC) refers to the Inside Air Temperature Sensor Circuit Range/Performance. Common causes include Faulty inside air temperature sensor, Wiring issues or a short in the sensor circuit, 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 indicates Inside Air Temperature Sensor Circuit Range/Performance.
Common causes
Common causes include Faulty inside air temperature sensor, Wiring issues or a short in the sensor circuit, 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 12, 2024
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Code B0164 Description

The B0164 diagnostic trouble code (DTC) refers to the Inside Air Temperature Sensor Circuit Range/Performance. This code indicates that there is a problem with the inside air temperature sensor circuit in the vehicle. The inside air temperature sensor is responsible for measuring the temperature inside the vehicle's cabin. This information is used by the HVAC (Heating, Ventilation, and Air Conditioning) system to regulate the cabin temperature and adjust the climate control settings accordingly.

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

Common Causes of B0164

  1. Faulty inside air temperature sensor.
  2. Wiring issues or a short in the sensor circuit.
  3. HVAC control module malfunction.
  4. Corrosion or damage to sensor connectors.
  5. Electrical issues within the HVAC system.

Symptoms of B0164

  1. Inconsistent cabin temperature readings on the climate control display.
  2. HVAC system blowing hot or cold air intermittently.
  3. Climate control settings not responding accurately to temperature adjustments.
  4. HVAC system not maintaining a consistent cabin temperature.
  5. Check engine light illuminated on the dashboard.

How to Fix B0164

  1. Diagnose the issue by using a scan tool to retrieve the specific DTC and test the inside air temperature sensor.
  2. Inspect the wiring and connectors for any signs of damage or corrosion.
  3. Replace the inside air temperature sensor if it is found to be faulty.
  4. Test the HVAC control module for proper function and replace if necessary.
  5. Clear the DTC and reset the HVAC system to ensure proper operation.

Cost to Fix B0164

The typical repair costs for addressing the B0164 code can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops may offer lower prices.

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Code B0164 Information for Specific Makes

  • B0164 Buick — Inside Air Temperature Sensor Circuit Range/Performance
  • B0164 Cadillac — Inside Air Temperature Sensor Circuit Range/Performance
  • B0164 Chevrolet — Inside Air Temperature Sensor Circuit Range/Performance
  • B0164 GMC — Inside Air Temperature Sensor Circuit Range/Performance
  • B0164 Hummer — Inside Air Temperature Sensor Circuit Range/Performance
  • B0164 Pontiac — Inside Air Temperature Sensor Circuit Range/Performance
  • B0164 Saturn — Inside Air Temperature Sensor Circuit Range/Performance
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 Code

1. What does OBDII code B0164 mean?

Code B0164 indicates an issue with the Inside Air Temperature Sensor Circuit, specifically that its performance or range is outside the expected parameters.

2. What are the common symptoms of code B0164?

Symptoms may include inconsistent cabin temperature control, failure of the HVAC system to maintain the desired temperature, or a check engine light or climate control warning.

3. What causes the B0164 code to be triggered?

Common causes include a faulty inside air temperature sensor, damaged or corroded wiring or connectors, or a malfunctioning HVAC control module.

4. How do I diagnose a B0164 code?

Start by inspecting the inside air temperature sensor for damage, checking the wiring and connectors for corrosion or loose connections, and testing the sensor's resistance with a multimeter to verify it’s within the manufacturer’s specifications.

5. Can I drive with a B0164 code?

Yes, you can usually drive with this code, but the HVAC system may not function as intended, potentially causing discomfort in extreme weather conditions.

6. How is a B0164 code fixed?

Repairs may involve replacing the inside air temperature sensor, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the HVAC control module if necessary.

7. How much does it cost to fix code B0164?

Repairs can range from $50 to $300, depending on whether the issue is a simple wiring repair or requires sensor or module replacement.

8. Can a faulty inside air temperature sensor damage other systems?

While it primarily affects the HVAC system, prolonged issues could lead to additional strain on the climate control system components.

9. Can I reset the B0164 code without fixing the problem?

You can clear the code with an OBDII scanner, but if the underlying issue isn’t resolved, the code will likely reappear.

10. How can I prevent a B0164 code in the future?

Regular maintenance, such as inspecting HVAC system components and ensuring wiring connections are secure and corrosion-free, can help prevent this code from occurring.

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