B0159
Ambient Air Temperature Sensor Circuit Range/Performance
B0159 is an OBD-II diagnostic trouble code meaning: Ambient Air Temperature Sensor Circuit Range/Performance. Common causes: ambient temperature sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $22–56.
Symptoms
- Incorrect temperature readings on the climate system display
- Unstable operation of the climate system
- Increased fuel consumption
- Check Engine Light Illuminates
Causes
- Ambient temperature sensor malfunction
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Wiring harness damage
- Software failure in ECU
How to Fix
- Check the integrity of the ambient temperature sensor
- Check the condition of the wiring harness and connectors
- Measure the resistance and voltage in the sensor circuit
- Replace the sensor if a fault is detected
- Clear error codes and check if error is returned
Related codes
Error B0159 by Vehicle Brand
FAQ
What does the B0159 code mean?
B0159 is an OBD-II diagnostic trouble code that indicates: Ambient Air Temperature Sensor Circuit Range/Performance
What causes a B0159 error code?
The most common causes of B0159 include: Ambient temperature sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Wiring harness damage.
How do I fix a B0159 diagnostic trouble code?
To fix B0159: Check the integrity of the ambient temperature sensor. Check the condition of the wiring harness and connectors. Measure the resistance and voltage in the sensor circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B0159?
Limited driving only, diagnose soon
How much does it cost to fix B0159?
The estimated repair cost for B0159 is $22–56. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat