BI XENON HEADLIGHTS - System Overview
An option on the L322, the Xenon head lamps have their own ECU built into the back of the head lamp.
SM055 - BI XENON HEADLIGHTS - System Help file
Version 1.27

BI XENON HEADLIGHTS - 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 III (L233) 2002 - Mid 2005 Black OBDII Lead/LD020/LD021

BI XENON HEADLIGHTS - Physical Details

SM055 - BI XENON HEADLIGHTS - Diagnostic Capabilities (Read Fault Codes)
Reads the fault code memory. The ECU can self detect up to 12 different problems with itself, its wiring and its associated sensors, storing the respective code if it detects any malfunction or reading outside of pre defined acceptable limits. Not all stored faults may cause the fault warning lamp to illuminate.

SM055 - BI XENON HEADLIGHTS - Diagnostic Capabilities (Clear Fault Codes)
Clears the fault code memory.

SM055 - BI XENON HEADLIGHTS - 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 is a number which relates to the software programmed in the processor of the ECU.
  • Supplier number: This is a number which defines the supplier using a standard look up list of supplier of ECU manufacturer.
  • Coding index: This is a number which denotes the layout of the options within the EEPROM of the ECU and denotes which coding map should be used to program the ECU with.
  • 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 of the year in which the unit was built.
  • Year of build: This is the year in which the unit was built.