LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Acura >> 2017 >> TLX SH-AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Blind Spot Information System - Diagnostics >> DTC Troubleshooting >> DTC B18DB: Left Side BSI Radar Unit Received The Audio/Navigation Unit Failure Information
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC B18DB: Left Side BSI Radar Unit Received The Audio/Navigation Unit Failure Information

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

DTC Description DTC
B18DB Left Side BSI Radar Unit Received The Audio/Navigation Unit 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
    B18DB Left Side BSI Radar Unit Received The Audio/Navigation Unit Failure Information  

    Is DTC B18DB indicated?

    YES 

    Go to the audio system general troubleshooting. - Refer to: How to Troubleshoot the Audio System (With Auto Idle Stop System), or How to Troubleshoot the Audio System (Without Auto Idle Stop System) 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 .