Self-diagnosis function
The microclimate control unit has a built-in self-diagnosis system.
Self-diagnosis function operation
Turn the ignition key to the ON position (II), press the AUTO and OFF buttons simultaneously. While the buttons are pressed, the A, B, D, F and G indicators will turn on and indicate faulty components.
Note: In case of multiple faults, several indicators will light up. If A, B, C, D, E light up at the same time, both ground wires may break.
Resetting the self-test function
Turning the ignition key to the OFF position will stop the self-test function. After performing maintenance, run the self-diagnosis function again and check that there are no problems.
Microclimate control unit. Input/output signals
Climate control unit connectors
16K connector
20K connector
"Socket" from the wire side
16K connector
20K connector