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Home >> Honda >> 2021 >> Pilot Special Edition, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Blind Spot / Lane Watch System - Diagnostics >> DTC Troubleshooting >> DTC : B18EA, B1E9A

DTC : B18EA, B1E9A

DTC B18EA  : Left Side BSI Radar Unit Received PCM (A/T System) Failure Information

DTC B1E9A  : Right Side BSI Radar Unit Received PCM (A/T System) Failure Information

NOTE:  Before you troubleshoot, review the general troubleshooting information - Refer to:

How to Troubleshoot the Blind Spot Information System/Cross Traffic Monitor (2016 2017 2018)  or

How to Troubleshoot the Blind Spot Information System/Cross Traffic Monitor (2019 2020 2021) .

DTC Description DTC
B18EA Left Side BSI Radar Unit Received PCM (A/T System) Failure Information  
B1E9A Right Side BSI Radar Unit Received PCM (A/T System) Failure Information  

DTC (BSI)

  1. BSI radar unit connector check

    -1. Check for poor connections or loose terminals at the BSI radar unit 6P connector.

    Is the BSI radar unit 6P connector OK?

    YES 

    Go to step 2.

    NO 

    Repair or reconnect the connector securely.

  2. BSI radar unit check

    -1. Turn the vehicle to the ON mode, and read the HDS.

    DTC Description DTC
    B18EA Left Side BSI Radar Unit Received PCM (A/T System) Failure Information  
    B1E9A Right Side BSI Radar Unit Received PCM (A/T System) Failure Information  

    Is DTC B18EA or B1E9A indicated?

    YES 

    Go to the A/T System General Troubleshooting . If the symptom is still present, replace the appropriate BSI Radar Unit - Removal and Installation .

    NO 

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

    How to Troubleshoot the Blind Spot Information System/Cross Traffic Monitor (2016 2017 2018)  or

    How to Troubleshoot the Blind Spot Information System/Cross Traffic Monitor (2019 2020 2021) .