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Home >> Honda >> 2021 >> CR-V EX-L, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Blind Spot Information System - Diagnostics (Except Hybrid) >> DTC Troubleshooting >> DTC U1281 (BSI Radar Unit)

DTC U1281 (BSI Radar Unit)

DTC U1281  : Left Side BSI Radar Unit Lost Communication With MICU or BCM DTC U1281  : Right Side BSI Radar Unit Lost Communication With MICU or BCM

NOTE: Before you troubleshoot, review the general troubleshooting information .

DTC Description DTC
U1281 Left Side BSI Radar Unit Lost Communication With MICU or BCM  
U1281 Right Side BSI Radar Unit Lost Communication With MICU or BCM  

DTC (BSI)

  1. Problem verification

    -1. Turn the vehicle to the ON mode.

    -2. Clear the DTC with the HDS.

    -3. Turn the vehicle to the OFF (LOCK) mode.

    -4. Turn the vehicle to the ON mode, then wait for at least 2 seconds.

    -5. Check for DTCs with the HDS.

    DTC Description DTC
    U1281 Left Side BSI Radar Unit Lost Communication With MICU or BCM  
    U1281 Right Side BSI Radar Unit Lost Communication With MICU or BCM  

    Is DTC U1281 indicated?

    YES 

    Go to the multiplex integrated control system general troubleshooting . If the symptom is still present, replace the appropriate BSI radar unit .

    NO 

    Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting .