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Home >> Lexus >> 2001 >> LS 430 >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Gateway System >> Circuit Inspection >> DTC B1275: Accessory Bus Buffer Communication Stop >> Inspection Procedure

Inspection Procedure

  1. Check wire harness. 

    PREPARATION: 

    Pull out the ECU connectors mentioned below.

    WIRE HARNESS

    Wire harness side connector of ECU Terminal
    Accessory bus buffer - Gateway ECU BUS-MPD2

    CHECK: 

    Check the continuity between the connectors on the wire harness.

    Fig 1: ECU Connector Circuit Diagram
    G03138485Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: 

    Continuity 

    1. NG : Repair or replace wire harness. 
    2. OK : Replace the accessory bus buffer. 

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