Network, generic

U0064 Vehicle Communication Bus E

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modePossible

U0064 is the umbrella fault for Vehicle Communication Bus E, the fifth freely assignable network slot. Jaguar Land Rover documents it for the 2022-25 Range Rover (L460) and 2023-25 Range Rover Sport (L461): modules store U0064-88 (bus off) and U0064-87 (missing message), often together with U0080 codes for Bus F, when connector CM32B3/4 between the main body and instrument panel harnesses is not fully latched. Owners report electrical faults around power mode zero and FlexRay module functions, sometimes only intermittent and depending on movement in the cabin or on temperature. JLR has the connector unplugged, its pins inspected and relatched even when it looks secure. Volkswagen Group uses the neighbouring code U0065 for the infotainment CAN in the gateway.

Likely causes

Harness connector between body and instrument panel not fully latched (JLR CM32B3/4)
Bent or spread pins in that connector
Supply or ground fault at a module on Bus E

Symptoms

  • Electrical faults that come and go with cabin movement or temperature (JLR)
  • Modules on Bus E not responding, bus-off or missing-message entries
  • Codes for further networks stored alongside

Repair estimate

DifficultyHardWorkshop job
Parts and labour€50–900
Time0.5–5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

bus e wiringbus e nodesmodule connector

Related codes

U0037U0046U0055U0065U0080

References: static.nhtsa.gov, law.cornell.edu, static.nhtsa.gov.