B0161 - Ambient Air Temperature Sensor Low

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?

B0161 Possible Causes

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

First diagnose B0161 code

    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 terminals.

Cost of diagnosing the B0161 code

    Labor: 1.0

    The cost of diagnosing the B0161 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

B0161 Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

B0161 Meaning

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 B0161 - Ambient Air Temperature Sensor Low - Engine-Codes.com

B0161 More Information

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