Lighting IHKA/IHKS/IHS (Z Series_Z4-E85/E86)

Lighting IHKA/IHKS/IHS

The function and indicator lighting is dimmed as follows:
- Dependent on the position of the dimmer control on the light switch center
- Dependent on the ambient brightness (photocell on light switch center)

Function indicator lamps
The following buttons feature a green function light (LED):
- IHKA: AUTO, A/C, MAX AC. The button for AUC/recirculating air has 2 green function lights (LEDs).
- IHKS: recirculated air, air conditioner
- IHS: Recirculated air

The buttons for the rear-window defroster and Defrost button (only IHKA) feature an orange-colored function light (LED).

Locating light
When the light is switched on, the indicator light is activated via terminal 58g. The signal comes from the light switch center (LSZ).

NOTE: If the locating light does not function, check the connection to the lights switching center. If this is OK and the locating light of other components is OK, replace the heater - A/C control module.