AutoCodes – GMC – B0160 GMC

B0160 GMC Code - Ambient Air Temperature Sensor High

Quick Answer

The Driver Information Center (DIC) applies 5 volts to the ambient air temperature sensor. 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: B0160 GMC indicates Ambient Air Temperature Sensor High.
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 1,124

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 B0160 GMC Description

The Driver Information Center (DIC) applies 5 volts to the ambient air temperature sensor. The ambient air temperature sensor is a thermistor which varies in resistance as the temperature changes. As the resistance of the ambient air temperature sensor increases, the DIC senses a larger voltage drop across the sensor, indicating a lower temperature. As the resistance of the ambient air temperature sensor decreases, the DIC senses a smaller voltage drop across the sensor, indicating a higher temperature.

OBDII Code B0160 GMC - Ambient Air Temperature Sensor High - AutoCodes.com — B0160 GMC Code - Ambient Air Temperature Sensor High

What does this mean?

What are the Possible Causes of the DTC B0160 GMC?

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

How to Fix the DTC B0160 GMC?

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 B0160 GMC 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 B0160 GMC code?

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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 B0160 GMC Code

1. What are the common symptoms of OBDII code B0160 GMC (Ambient Air Temperature Sensor High)?

The common symptoms include inaccurate temperature reading on the vehicle's display, incorrect climate control system operation, and potential issues with the vehicle's fuel efficiency.

2. What can cause the OBDII code B0160 GMC to trigger?

The code B0160 GMC is typically triggered when the ambient air temperature sensor sends a high voltage signal to the vehicle's computer, indicating a malfunction or a disconnected sensor.

3. How can I diagnose the cause of OBDII code B0160 GMC (Ambient Air Temperature Sensor High)?

You can diagnose the issue by visually inspecting the ambient air temperature sensor for any damage or disconnection, testing the sensor's resistance with a multimeter, and checking the wiring harness for any faults.

4. Can a faulty ambient air temperature sensor affect my vehicle's performance?

While a faulty ambient air temperature sensor may not directly affect the vehicle's performance, it can lead to issues with the climate control system, inaccurate temperature readings, and potentially impact fuel efficiency.

5. How can I repair the OBDII code B0160 GMC (Ambient Air Temperature Sensor High)?

To repair the code B0160 GMC, you may need to replace the ambient air temperature sensor if it is faulty or disconnected. Ensure the new sensor is properly installed and the wiring harness is securely connected.

6. Is it safe to continue driving with OBDII code B0160 GMC (Ambient Air Temperature Sensor High) present?

It is generally safe to continue driving with this code present, but it is recommended to address the issue promptly to prevent potential inaccuracies in temperature readings and climate control system operation.

7. Can I reset the OBDII code B0160 GMC (Ambient Air Temperature Sensor High) without repairing the issue?

You can reset the code temporarily by using an OBDII scanner to clear the code, but the issue will likely reoccur if the underlying problem with the ambient air temperature sensor is not fixed.

8. How much does it typically cost to repair OBDII code B0160 GMC (Ambient Air Temperature Sensor High)?

The cost of repairing this code can vary depending on the labor rates and the price of the ambient air temperature sensor. Generally, the repair cost is moderate and should be relatively affordable.

9. Are there any preventive measures to avoid triggering OBDII code B0160 GMC (Ambient Air Temperature Sensor High)?

Regularly inspecting the ambient air temperature sensor for damage or corrosion, ensuring proper installation, and addressing any sensor-related issues promptly can help prevent triggering this code.

10. Can a DIY enthusiast repair OBDII code B0160 GMC (Ambient Air Temperature Sensor High)?

Yes, a DIY enthusiast with basic automotive knowledge and tools can typically replace the ambient air temperature sensor themselves. However, if unsure, it is recommended to seek professional help to ensure proper installation and diagnosis.