Overheat sensor
â–¶ How to fix
Check the overheating sensor.The checking procedure is described in the work description in Multi under 18-90 "H13, ATA Auxiliary heater - Air".
What you'll see
No driver-visible symptom recorded.
System reaction
No system-reaction text recorded.
Diagnostic depth
Detection
Prohibited voltage level in overheat sensor circuit.
Possible cause
Interruption in the overheating sensor circuit.