Operation CHARM: Car repair manuals for everyone.
Hosted by mcallihan.com

Temperature Sensing




IHKA E32 TEMPERATURE SENSING

The IHKA E32 climate control system uses a total of 5 temperature sensors:






















The ambient, evaporator, and heater core temperature sensors are mounted in, or on, the IHKA housing assembly.
The interior temperature sensor is mounted inside the control panel, behind a protective grille.
All of the sensors are Negative Temperature Coefficient (NTC) thermistors. As temperature increases, sensor resistance decreases; as temperature decreases, sensor resistance increases.
Temperature sensor readings can be monitored using the DIS by selecting the "temperature sensors" option from the Diagnosis "Status Requests" screen.