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Home >> BMW >> 2003 >> 745Li >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> IHKA Automatic Heating & Air Conditioning System - Overview - E65 & E66 >> IHKA Automatic Heating and Air Conditioning System >> Control Panel/Control Module >> Function Operations Based on Ignition Switch Positions >> Communication Between IHKA And Control Display
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Communication Between IHKA And Control Display

The following messages are interchanged between the IHKA and the Control Display over the K-CAN bus:

From IHKA to Control Display:

From Control Display to IHKA: