WDS Wiring Diagram System - E53

• Complete vehicle
• Component and signal information
• Service functions

• Drive
• Chassis
• body

• Displays and information
• Audio, video and navigation
• Lighting
• Bus functions
• Heating and air conditioning functions (IHKA Automatic heating/air conditioning system or IHKR Integrated heating/air-conditioning regulation)
• Heating and air conditioning functions (IHKA Integrated heating control (Redesign))
• Communication
• Restraint and rollover protection functions
• Locking and security functions
• Signal and warning functions
• Seat, steering-column, mirror functions
• Wipe and wash functions

• Diagnosis bus
• Body bus
• Instrumentation bus (IKE Instrument-cluster electronics)
• CAN-bus

• I-bus

• Connector, I-bus X939 (IKE Instrument-cluster electronics up to 2002_03)
• K-bus connector X939 (KOM Instrument cluster up to 2002_03)
• Connector, I-bus X939 (IKE Instrument-cluster electronics from 2002_03)
• K-bus connector X939 (KOM Instrument cluster from 2002_03)
• Bus test
• Functional description of bus systems
• Oscillogram I-bus/K-bus signals