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Home >> Toyota >> 2019 >> Mirai >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Collision/Avoidance >> Intuitive Parking Assist System (W/ Parking Support Brake System) - Diagnostic Codes & Circuit Tests >> INTUITIVE PARKING ASSIST SYSTEM (w/ Parking Support Brake System) >> DTC U0129: Lost Communication with Brake System Control Module; DTC U0073: Control Module Communication Bus "A" Off; DTC U0155: Lost Communication with Instrument Panel Cluster (IPC) Control Module; DTC U0293: Lost Communication with Hybrid/EV Powertrain Control Module [11/2018 - ] >> Procedure
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DTC U0129: Lost Communication with Brake System Control Module; DTC U0073: Control Module Communication Bus "A" Off; DTC U0155: Lost Communication with Instrument Panel Cluster (IPC) Control Module; DTC U0293: Lost Communication with Hybrid/EV Powertrain Control Module [11/2018 - ]: Procedure

  1. CHECK FOR DTC 
    1. According to the display on the Techstream, check for DTCs.

      Refer to DTC CHECK / CLEAR [11/2018 - ]

      Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes 

    2. According to the display on the Techstream, clear the DTCs.

      Refer to DTC CHECK / CLEAR [11/2018 - ]

      Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Clear DTCs 

    3. Recheck for DTCs.

      Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes 

      Result

      Result Proceed to
      DTC U0073, U0129, U0155 and U0293 are not output A
      DTC U0073, U0129, U0155 and U0293 are output B

    Result: 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - ] 

    Result: 

    GO TO CAN COMMUNICATION SYSTEM. Refer to  DIAGNOSIS SYSTEM [11/2018 - ]