Jetta GLS L4-1.9L DSL Turbo (ALH) (2001)
Ambient Temperature Sensor / Switch HVAC: Description and Operation
Intake Air Temperature Sensor - Climate Control
Fresh air intake duct temperature sensor -G89-
Function: Temperature sensor controls temperature flap and fresh air blower depending on temperature.
In event of malfunction: outside temperature sensor -G17- value is used instead.