Operation CHARM: Car repair manuals for everyone.

Rear Compartment Air Conditioning System



Which Stepper Motor Is To Be Checked?

Please enter the ID code of the stepper motor to be checked
The order of the list of stepper motors describes the topological order of the stepper motors on the LIN bus. The stepper motors are switched in series on the LIN bus. The first listed stepper motor is the topological first stepper motor viewed from the control module of the rear climate control. If the LIN bus is interrupted at one position in the wiring harness, the location of the interruption can be detected by finding the topological first stepper motor that is no longer communicating with the control module. All of the subsequent topological stepper motors would also no longer communicate.

Climate control to the HKA