STEERING WHEEL (L322) - System Overview
The remote mounted switches on the Steering wheel of all L322ís form a separate element of the Infotainment system, and as such are an individual ECU which is connected to the Infotainment system Data bus. This means that any ECU which is also connected to this bus can, see and respond accordingly to any button press.
SM054 - STEERING WHEEL (L322) - System Help file
Version 1.25

STEERING WHEEL (L322) - Known Fitments
Vehicle makes, models and variants known or believed to be using this vehicle system, required diagnostic lead and degree of known compatibility.

Vehicle Make Vehicle Model Vehicle Variant Diagnostic Lead
Land Rover Range Rover MK IIII (L322) 2002 - 2009 Black OBDII Lead/LD020/LD021

STEERING WHEEL (L322) - Physical Details

SM054 - STEERING WHEEL (L322) - Diagnostic Capabilities (Settings)
Values, configuration settings, and other stored information which can be read from the ECU, edited and then rewritten back. Read settings can also be stored as a standard HTML page for reference. These pages can then later be re loaded and re written back to the ECU. Please note that some values may be read only due to the fact that they are supplied from the ECUís ROM or are internally calculated.

  • Part Number: This is the manufacturer's part number for the ECU.
  • Hardware number: This is the hardware version which denotes the processor and circuit board type.
  • Software number: This denotes the coding inside the processor for the hardware.
  • Supplier number: This is a number which defines the supplier using a standard look up list of supplier ECU manufacturer numbers.
  • Coding index: This is the coding identification for the programming maps.
  • Diagnostic index: This is a number that indicates the diagnostic capabilities support level.
  • Bus index: This is a number that indicates the bus communication support level, the vehicle communication buses.
  • Week of build: This is the week in which the unit was built.
  • Year of build: This is the year in which the unit was built.

SM054 - STEERING WHEEL (L322) - Diagnostic Capabilities (Inputs)
Realtime live display of the information the electronic control unit of the selected vehicle system is currently deriving from its input sensors.

  • Cruise Master: This shows if the cruise master button is pressed or not pressed.
  • Cruise Decelerate: This shows if the cruise decelerate button is pressed or not pressed.
  • Cruise Accelerate: This shows if the cruise accelerate button is pressed or not pressed.
  • Cruise Resume: This shows if the cruise resume button is pressed or not pressed.
  • Telephone/Speech: This shows if the telephone/speech button is pressed or not pressed.
  • Telephone/Radio: This shows if the telephone/radio button is pressed or not pressed.
  • Search down: This shows if the search down button is pressed or not pressed.
  • Search up: This shows if the search up button is pressed or not pressed.
  • Recirculation: This shows if the recirculation button is pressed or not pressed.
  • Volume: This shows if the volume button is pressed in either the up or down direction, or it is inactive.