AutoCodes – GMC – B0158 2017 GMC Sierra

B0158 2017 GMC Sierra Code - Ambient Air Temperature Sensor Circuit

Quick Answer

The Ambient Air Temperature Sensor is located behind the grille. 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: B0158 2017 GMC Sierra indicates Ambient Air Temperature Sensor Circuit.
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 352

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 Nov 07, 2022

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code B0158 2017 GMC Sierra Description

The Ambient Air Temperature Sensor is located behind the grille. The instrument cluster monitors the ambient air temperature sensor with a low reference circuit and signal circuit. The instrument cluster monitors the voltage drop across the sensor, which is inversely proportional to temperature. When the ambient air temperature is cold, the resistance of the sensor is high. When the ambient air temperature is warm, the resistance of the sensors is low. The instrument cluster converts the voltage value to a temperature value and displays the temperature.

OBDII Code B0158 2017 GMC Sierra - Ambient Air Temperature Sensor Circuit - AutoCodes.com — B0158 2017 GMC Sierra Code - Ambient Air Temperature Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC B0158 2017 GMC Sierra?

Faulty Ambient Air Temperature Sensor
Ambient Air Temperature Sensor harness is open or shorted
Ambient Air Temperature Sensor circuit poor electrical connection
Faulty Instrument Cluster

How to Fix the DTC B0158 2017 GMC Sierra?

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 does this mean?

Code Tech Notes

B0158:02 Ambient Air Temperature Sensor Circuit Short to Ground
B0158:05 Ambient Air Temperature Sensor Circuit High Voltage/Open

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B0158 2017 GMC Sierra 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.

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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 B0158 2017 GMC Sierra Code

1. What are the common symptoms of a faulty ambient air temperature sensor circuit (OBDII code B0158) in a 2017 GMC Sierra?

The common symptoms include inaccurate temperature readings on the dashboard, issues with climate control system operation, and potential impact on fuel efficiency.

2. What are the possible causes of OBDII code B0158 in a 2017 GMC Sierra?

The code B0158 can be triggered by a faulty ambient air temperature sensor, damaged wiring or connectors in the sensor circuit, or issues with the sensor's calibration.

3. How can I diagnose the ambient air temperature sensor circuit issue in my 2017 GMC Sierra?

Diagnosis involves checking the sensor for physical damage, inspecting the wiring and connectors for any signs of wear or corrosion, and using a multimeter to test the sensor's resistance and voltage output.

4. Can I drive my 2017 GMC Sierra with OBDII code B0158 without causing further damage?

While the vehicle may still be operable with this code, it is recommended to address the issue promptly to prevent any potential impact on the vehicle's performance and fuel efficiency.

5. How can I repair the ambient air temperature sensor circuit problem in my 2017 GMC Sierra?

Repair options include replacing the faulty ambient air temperature sensor, repairing or replacing damaged wiring/connectors, and resetting the system to clear the trouble code.

6. Is it possible to reset OBDII code B0158 in a 2017 GMC Sierra without fixing the underlying issue?

Resetting the code without addressing the root cause will only temporarily clear the code, as it will likely reappear once the issue persists.

7. Can extreme weather conditions affect the accuracy of the ambient air temperature sensor in a 2017 GMC Sierra?

Yes, extreme temperatures or exposure to elements such as water or debris can impact the sensor's performance and accuracy.

8. Will fixing OBDII code B0158 in my 2017 GMC Sierra improve fuel efficiency?

Correcting issues related to the ambient air temperature sensor circuit can help restore accurate readings and improve the vehicle's fuel efficiency over time.

9. How much does it typically cost to repair the ambient air temperature sensor circuit issue in a 2017 GMC Sierra?

Costs can vary depending on the extent of the problem, but replacing the sensor or repairing the wiring/connectors may range from $50 to $200 in parts and labor.

10. Are there any preventive maintenance tips to avoid OBDII code B0158 in a 2017 GMC Sierra?

Regularly inspecting the ambient air temperature sensor, ensuring proper wiring connections, and keeping the sensor clean from debris can help prevent issues that trigger this trouble code.