LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Land Rover >> 2020 >> Range Rover SVAutobiography Dynamic >> Repair and Diagnosis >> Quick Lookups >> Common Specs & Procedures >> Diagnostic Trouble Code Index DTC: Infotainment Master Controller/Infotainment Slave Controller (IMC/ISC) -- Range Rover/L405 >> General Information >> Description And Operation >> Diagnostic Trouble Code Index - DTC: Infotainment Master/Slave Controller (IMC/ISC) (G2385771) >> DTC U0001-87: High Speed CAN Communication Bus - Missing message >> Action
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC U0001-87: High Speed CAN Communication Bus - Missing message: Action

NOTE: Do Not  replace the infotainment master controller for this DTC alone
  1. Using the Jaguar Land Rover approved diagnostic equipment, perform routine - On Demand Self Test (0x0202) and read the Diagnostic Trouble Code(s). If the DTC is set go to step 2, if the DTC is no longer set go to step  4
  2. Refer to the appropriate system wiring diagrams and check the high speed CAN bus (comfort) circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary. Clear the Diagnostic Trouble Code(s) and retest
  3. Using the Jaguar Land Rover approved diagnostic equipment, check the snapshot data to determine the invalid data source control module. Check the relevant control module for related Diagnostic Trouble Code(s) and refer to the relevant DTC index
  4. Using the Jaguar Land Rover approved diagnostic equipment, clear the Diagnostic Trouble Code(s) and retest
scientia non olet · About LEMON Manuals