LEMON Manuals: Even more car manuals for everyone
Home >> Honda >> 2021 >> CR-V EX-L, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 63 (Blind Spot Information System - Diagnostics (Hybrid)) >> DTC Troubleshooting >> DTC U1297, U128F (BSI Radar Unit)

DTC U1297, U128F (BSI Radar Unit)

WARNING: This page is about a different variant/trim than selected.

DTC U1297  : Left Side BSI Radar Unit Lost Communication With Right Side BSI Radar Unit

DTC U128F  : Right Side BSI Radar Unit Lost Communication With Left Side BSI Radar Unit

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

DTC Description DTC
U1297 Left side BSI radar unit lost communication with right side BSI radar unit  
U128F Right side BSI radar unit lost communication with left side BSI control unit  

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
    U1297 Left side BSI radar unit lost communication with right side BSI radar unit  
    U128F Right side BSI radar unit lost communication with left side BSI control unit  

    Is DTC U1297 or U128F 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 .