Keyless Access / Backup Control Unit DTCS

2020 Honda CR-V Hybrid EXSECTION Keyless Access / Backup Control Unit DTCS
DTC Description DTC type
B1926 Backup Control Antenna Open or Short Internal error
U1280 B-CAN communication bus line error (BUS-OFF) Loss of communication
U128D Backup Control Unit Lost Communication with Gauge Control Module Loss of communication
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.