AutoCodes - OBDII Code List - B0337
B0337 - Inside Temperature Sensor Short To Ground
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B0337 Possible Causes
- 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 do I fix code B0337?
Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
Cost of diagnosing the B0337 code
Labor: 1.0
The cost of diagnosing the B0337 code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B0337 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.
More Information
Need more information on how to fix the B0337 code?Get Access to Factory Service Manuals
Information for specific makes
- B0337 BUICK Inside Temperature Sensor Short To Ground
- B0337 CADILLAC Inside Temperature Sensor Short To Ground
- B0337 CHEVROLET Inside Temperature Sensor Short To Ground
- B0337 GMC Inside Temperature Sensor Short To Ground
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