AutoCodes – GMC – B0332 GMC

B0332 GMC Code - Ambient Air Temperature Sensor Short To Ground

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: B0332 GMC indicates Ambient Air Temperature Sensor Short To Ground.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 1,001

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 11, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code B0332 GMC 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 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 B0332 GMC - Ambient Air Temperature Sensor Short To Ground - AutoCodes.com — B0332 GMC Code - Ambient Air Temperature Sensor Short To Ground

What does this mean?

What are the Possible Causes of the DTC B0332 GMC?

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 B0332 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 B0332 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 B0332 GMC code?

Need more information on how to fix the B0332 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0332 GMC 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 B0332 GMC Code

1. What are the common symptoms of OBDII code B0332 GMC (Ambient Air Temperature Sensor Short To Ground)?

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

2. What are the possible causes of OBDII code B0332 GMC?

- The code B0332 GMC typically occurs due to a short circuit between the ambient air temperature sensor and ground, often caused by damaged wiring or a faulty sensor.

3. How can I diagnose OBDII code B0332 GMC?

- Diagnosis involves visually inspecting the sensor and its wiring for any damage, testing the sensor's resistance, and checking for continuity to ground using a multimeter.

4. What is the repair process for OBDII code B0332 GMC?

- The repair process usually involves repairing or replacing damaged wiring, replacing the ambient air temperature sensor if faulty, and clearing the trouble code with an OBDII scanner.

5. Can I drive my vehicle with OBDII code B0332 GMC present?

- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to prevent any potential adverse effects on vehicle performance.

6. Are there any DIY tips for fixing OBDII code B0332 GMC?

- DIY tips include carefully inspecting the sensor and wiring for visible damage, ensuring proper connections, and using a repair manual for guidance on sensor replacement.

7. Will OBDII code B0332 GMC cause damage to my vehicle if left unrepaired?

- Leaving the code unrepaired may not cause immediate damage, but it can lead to inaccurate temperature readings, affecting the vehicle's performance and fuel efficiency in the long run.

8. Can extreme weather conditions trigger OBDII code B0332 GMC?

- Extreme weather conditions can potentially affect the ambient air temperature sensor, leading to false readings and triggering the B0332 GMC trouble code.

9. Is resetting the check engine light enough to fix OBDII code B0332 GMC?

- Simply resetting the check engine light will not fix the underlying issue causing the B0332 GMC code. It is essential to diagnose and repair the root cause of the problem.

10. How much does it cost to repair OBDII code B0332 GMC at a professional auto repair shop?

- Repair costs for OBDII code B0332 GMC can vary based on the extent of the damage, but typically range from $100 to $300 for parts and labor at a professional auto repair shop.