Evaporator temperature sensor (T212), short circuit to battery, open load, or sensor is broken.
â–¶ How to fix
1. Check the cable harness. If the cable harness is short circuit to battery, that could also have caused the sensor to break. 2. Check the sensor.
What you'll see
The use of AC is limited. Cooling performance will be affected.
System reaction
The use of AC is limited. Cooling performance will be affected.
Diagnostic depth
Detection
The climate control system (E138) has registered an implausible value from the sensor. The test is performed continuously.
Possible cause
1. The cable harness to the sensor is open, or 2. The sensor is broken, or 3. The cable harness to the sensor is short circuit to battery.