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Home >> Toyota >> 2017 >> RAV4 XLE, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Warning Systems >> Blind Spot Monitor System - Diagnostic Codes & Circuit Tests - (Except Hybrid) >> Blind Spot Monitor System >> DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0142: Lost Communication with Body Control Module "B" [12/2012 - 10/2015] >> Procedure
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DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0142: Lost Communication with Body Control Module "B" [12/2012 - 10/2015]: Procedure

  1. CHECK DTC (CAN COMMUNICATION SYSTEM) 
    1. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [12/2012 - 10/2015] .

    2. Check for DTCs.

      Refer to DTC CHECK / CLEAR [12/2012 - 10/2015] .

      Result Proceed to
      DTCs are not output
      DTCs are output

      HINT: 

    Result: 

    DTCs are not output 

    USE SIMULATION METHOD TO CHECK: 

    Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2012 - 11/2013] or HOW TO PROCEED WITH TROUBLESHOOTING [11/2013 - 10/2015] .

    Result: 

    DTCs are output 

    GO TO CAN COMMUNICATION SYSTEM. 

    Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2012 - 10/2015] .