B0159

Ambient Air Temperature Sensor Circuit Range/Performance

Severity

✅ Low

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$22–56 (est.)

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

B0158 B0160 P0112 P0113