AutoCodes – Chevrolet – B0337 Chevrolet

B0337 Chevrolet Code - Inside 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 Inside Temperature Sensor, Inside Temperature Sensor harness is open or shorted, Inside 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: B0337 Chevrolet indicates Inside Temperature Sensor Short To Ground.
Common causes: Common causes include Faulty Inside Temperature Sensor, Inside Temperature Sensor harness is open or shorted, Inside 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 915

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
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Code B0337 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 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 B0337 Chevrolet - Inside Temperature Sensor Short To Ground - AutoCodes.com — B0337 Chevrolet Code - Inside Temperature Sensor Short To Ground

What does this mean?

What are the Possible Causes of the DTC B0337 Chevrolet?

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

How to Fix the DTC B0337 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 B0337 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.

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Need Help with the 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 B0337 Chevrolet Code

1. What are the common symptoms of OBDII code B0337 Chevrolet (Inside Temperature Sensor Short To Ground)?

- Common symptoms include inaccurate readings on the inside temperature display, issues with the HVAC system, and potential intermittent problems with cruise control.

2. What are the possible causes of the Inside Temperature Sensor Short To Ground code?

- The code may be triggered by a short circuit in the wiring harness, a faulty inside temperature sensor, or a problem with the HVAC control module.

3. How can I diagnose the cause of OBDII code B0337 in my Chevrolet?

- To diagnose the issue, you can start by checking the wiring harness for any visible damage, testing the inside temperature sensor for proper functioning, and using a diagnostic scanner to read live data from the HVAC system.

4. Can I drive my Chevrolet with OBDII code B0337 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 problems with the HVAC system or other related functions.

5. How can I repair OBDII code B0337 related to the Inside Temperature Sensor Short To Ground?

- Repair options include repairing or replacing damaged wiring, replacing the inside temperature sensor if faulty, or reprogramming the HVAC control module as needed.

6. Are there any DIY tips for fixing OBDII code B0337 in a Chevrolet?

- DIY enthusiasts can start by checking the wiring connections, ensuring proper sensor operation, and clearing the code with a diagnostic scanner to see if it reoccurs after potential fixes.

7. Is resetting the OBDII code B0337 sufficient, or should I address the underlying issue?

- While resetting the code may temporarily clear the warning, it is important to address the root cause to prevent the code from reappearing and potential issues with the HVAC system.

8. Can extreme temperatures or weather conditions trigger OBDII code B0337 in a Chevrolet?

- Extreme temperatures or weather conditions are unlikely to directly trigger this code, but they may exacerbate existing issues with the inside temperature sensor or wiring.

9. What is the typical cost to repair OBDII code B0337 in a Chevrolet at a dealership or auto repair shop?

- The cost of repairing this code can vary depending on the specific issue, but it may range from $100 to $300 for parts and labor at a dealership or auto repair shop.

10. Will OBDII code B0337 cause my Chevrolet to fail an emissions test?

- This code is typically not emissions-related, so it should not cause your Chevrolet to fail an emissions test. However, it is still important to address the issue to ensure proper functioning of the HVAC system.