AutoCodes - OBDII Code List - B0164 HUMMER

B0164 HUMMER - Inside Air Temperature Sensor Circuit Range/Performance

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3    What is this?
Table of contents

B0164 HUMMER Possible Causes

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

How do I fix code B0164 HUMMER?

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.
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Cost of diagnosing the B0164 HUMMER code

Labor: 1.0

The cost of diagnosing the B0164 HUMMER 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)

B0164 HUMMER 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 assembly 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 B0164 Hummer - Inside Air Temperature Sensor Circuit Range/Performance - AutoCodes.com

More Information

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Repair Importance Level: 3
 
1=Low 2=Medium 3=High What is this?
Repair Difficulty Level: 3
 
1=Easy 2=Moderate 3=Hard What is this?
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