AutoCodes – Chevrolet – B0159 Chevrolet

B0159 Chevrolet Code - Ambient Air Temperature Sensor Circuit Range/Performance

Quick Answer

The ambient air temperature sensor allows the Heating, Ventilation, and Air Conditioning (HVAC) Control Module to monitor the temperature of the air surrounding the front of the vehicle. Common causes include Faulty Ambient Air Temperature Sensor, Ambient Air Temperature Sensor harness is open or shorted, Ambient Air Temperature Sensor circuit poor electrical connection. 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: B0159 Chevrolet indicates Ambient Air Temperature Sensor Circuit Range/Performance.
Common causes: Common causes include Faulty Ambient Air Temperature Sensor, Ambient Air Temperature Sensor harness is open or shorted, Ambient Air Temperature Sensor circuit poor electrical connection.
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.

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Code Popularity 5,457

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 10, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B0159 Chevrolet Description

The ambient air temperature sensor allows the Heating, Ventilation, and Air Conditioning (HVAC) Control Module to monitor the temperature of the air surrounding the front of the vehicle. The inside air temperature sensor assembly allows the HVAC control module to monitor the temperature of the air inside the passenger compartment. The module applies 5 volts to internal input resistors that are connected to the signal circuits of the air temperature sensors. The module provides ground to the air temperature sensors through the low reference circuits. The HVAC control module monitors the voltage drops across the air temperature sensors and uses the inputs for automatic control calculations. The HVAC control module also uses the ambient air temperature input to calculate the value of the ambient air temperature display. When the air temperatures are cold, the resistances of the sensors are high and the voltage signals are high. When the air temperatures are hot, the resistances of the sensors are low and the voltage signals are low.

OBDII Code B0159 Chevrolet - Ambient Air Temperature Sensor Circuit Range/Performance - AutoCodes.com — B0159 Chevrolet Code - Ambient Air Temperature Sensor Circuit Range/Performance

What does this mean?

What are the Possible Causes of the DTC B0159 Chevrolet?

Faulty Ambient Air Temperature Sensor
Ambient Air Temperature Sensor harness is open or shorted
Ambient Air Temperature Sensor circuit poor electrical connection
Faulty Heating, Ventilation, and Air Conditioning (HVAC) Control Module

How to Fix the DTC B0159 Chevrolet?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B0159 Chevrolet code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the B0159 Chevrolet code?

Need more information on how to fix the B0159 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0159 Chevrolet code diagnosed by a professional: Find a repair shop in your area

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 B0159 Chevrolet Code

1. What are common symptoms of OBDII code B0159 in a Chevrolet related to the Ambient Air Temperature Sensor?

- Common symptoms include inaccurate temperature readings on the dashboard, incorrect climate control operation, and potential issues with the vehicle's fuel efficiency.

2. What are some possible causes of the B0159 OBDII code indicating Ambient Air Temperature Sensor Circuit Range/Performance in a Chevrolet?

- Causes may include a faulty ambient air temperature sensor, damaged wiring or connectors in the sensor circuit, or issues with the sensor's placement affecting its ability to accurately detect outside temperatures.

3. How can I diagnose the issue related to the Ambient Air Temperature Sensor in my Chevrolet triggering the B0159 code?

- Diagnosis involves checking the sensor's wiring and connectors for any damage, ensuring the sensor is securely mounted and exposed to outside air, and using a multimeter to test the sensor's resistance and voltage output.

4. Can I drive my Chevrolet with the B0159 OBDII code for the Ambient Air Temperature Sensor Circuit Range/Performance without immediate repair?

- While the vehicle may still be driveable, it is recommended to address the issue promptly to prevent potential inaccuracies in temperature readings affecting the vehicle's climate control system and overall performance.

5. What are some repair tips for fixing the B0159 OBDII code related to the Ambient Air Temperature Sensor in a Chevrolet?

- Repair tips may include replacing the faulty ambient air temperature sensor, repairing damaged wiring or connectors, ensuring proper sensor placement, and clearing the trouble code with an OBDII scanner after the repair.

6. Can weather conditions impact the performance of the Ambient Air Temperature Sensor in my Chevrolet and trigger the B0159 OBDII code?

- Extreme weather conditions such as excessive heat, cold, or moisture can potentially affect the performance of the ambient air temperature sensor, leading to the triggering of the B0159 code.

7. Is it possible to reset the B0159 OBDII code associated with the Ambient Air Temperature Sensor in a Chevrolet without fixing the underlying issue?

- While you can clear the trouble code temporarily using an OBDII scanner, the code is likely to return if the root cause, such as a faulty sensor or wiring issue, is not addressed.

8. How much does it typically cost to replace an Ambient Air Temperature Sensor in a Chevrolet to resolve the B0159 OBDII code?

- The cost of replacing the ambient air temperature sensor can vary depending on the model of your Chevrolet and labor rates, but it generally ranges from $50 to $150 for the part, with additional costs for labor if done at a repair shop.

9. Are there any recalls or technical service bulletins (TSBs) related to the B0159 OBDII code for the Ambient Air Temperature Sensor in Chevrolet vehicles?

- It is recommended to check with a Chevrolet dealership or online databases for any recalls or TSBs related to the B0159 code to see if there are known issues or repair procedures provided by the manufacturer.

10. Will fixing the B0159 OBDII code related to the Ambient Air Temperature Sensor in my Chevrolet improve the overall performance and efficiency of the vehicle?

- Addressing the B0159 code by repairing or replacing the ambient air temperature sensor can help restore accurate temperature readings, improve climate control operation, and potentially enhance fuel efficiency by optimizing engine performance based on ambient conditions.