B0161
Ambient Air Temperature Sensor Low
B0161 is an OBD-II diagnostic trouble code meaning: Ambient Air Temperature Sensor Low. Common causes: faulty ambient temperature sensor, open or short circuit in the sensor circuit. Estimated repair cost: $22–56.
Symptoms
- Incorrect temperature readings on the instrument panel
- Incorrect operation of the climate control system
- Check Engine Light Illuminates
Causes
- Faulty ambient temperature sensor
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Problems with the control unit (ECU)
How to Fix
- Check the integrity of the ambient temperature sensor
- Check wiring harness and connectors for damage
- Measure the sensor resistance and compare with the nominal values
- If necessary, replace the sensor or restore the wiring
- Clear error memory and check if error is returned
Related codes
Error B0161 by Vehicle Brand
FAQ
What does the B0161 code mean?
B0161 is an OBD-II diagnostic trouble code that indicates: Ambient Air Temperature Sensor Low
What causes a B0161 error code?
The most common causes of B0161 include: Faulty ambient temperature sensor; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Problems with the control unit (ECU).
How do I fix a B0161 diagnostic trouble code?
To fix B0161: Check the integrity of the ambient temperature sensor. Check wiring harness and connectors for damage. Measure the sensor resistance and compare with the nominal values. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B0161?
Limited driving only, diagnose soon
How much does it cost to fix B0161?
The estimated repair cost for B0161 is $22–56. Actual cost depends on your vehicle, location, and labor rates.
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