B0515

Output Air Temperature Sensor 4 Circuit Range/Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

~$33 (est.)

Symptoms

Incorrect operation of the climate control system
Incorrect temperature display on control panel
The system does not maintain the set temperature
Increased fuel consumption (indirect symptom)

Causes

Malfunction of exhaust air temperature sensor 4
Open or shorted sensor wiring harness
Poor contact in the sensor connector
Problems with power supply or sensor ground
Malfunction of the climate control control unit (rare)

How to Fix

Check exhaust air temperature sensor 4 for damage
Check the sensor resistance in accordance with the technical data
Inspect the wiring harness and sensor connector for damage or corrosion.
Check power and ground in the sensor circuit
If necessary, replace the sensor or repair the wiring harness
Clear the error and check if it comes back

Related codes

B0514 B0516 B0517