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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Power Integration System - Diagnostic Codes >> Power Integration System >> VEHICLE CONTROL HISTORY (RoB) [11/2023 - ] >> VEHICLE CONTROL HISTORY (RoB) [11/2023 - ]

VEHICLE CONTROL HISTORY (RoB) [11/2023 - ]

NOTE:

Make sure to record any output Vehicle Control History (RoB) codes before clearing them and checking the Vehicle Control History (RoB) again.

  1. CHECK VEHICLE CONTROL HISTORY (POWER DISTRIBUTION BOX ASSEMBLY) 
    1. Read the Vehicle Control History (RoB) according to the display on the GTS.

      Body Electrical > Power Distribution Box > Utility 

      Tester Display
      Vehicle Control History (RoB)
      VEHICLE CONTROL HISTORY (ROB)

      Code Tester Display Measurement Item Diagnostic Note
      X0A50 Rear Defogger Fuse Shut Off History History of output shutoff due to overcurrent in the rear defogger drive circuit. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2023 - ]
      X0A51 Mirror Heater Fuse Shut Off History History of output shutoff due to overcurrent in the mirror heater drive circuit. w/ Memory:
      Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2023 - ]
      w/o Memory:
      Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2023 - ]
      X0A52 Tail Light Fuse Shut Off History History of output shutoff due to overcurrent in the taillight drive circuit. w/ AFS:
      Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2023 - ]
      w/o AFS:
      Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2023 - ]
      X0A53 Panel Light Fuse Shut Off History History of output shutoff due to overcurrent in the panel light drive circuit. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2023 - ]
      X0A54 Power Retract Mirror Fuse Shut Off History History of output shutoff due to overcurrent in the power retract mirror drive circuit. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2023 - ]
      X0A55 Back-up Light Fuse Shut Off History History of output shutoff due to overcurrent in the back-up light drive circuit. w/ AFS:
      Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2023 - ]
      w/o AFS:
      Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2023 - ]
      X0A56 Rear Fog Light Fuse Shut Off History History of output shutoff due to overcurrent in the rear fog light drive circuit. -
      X0A60 Power Source Operation Advice Sending Power supply operation advice transmission history. For T24A-FTS:
      Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2022 - ]
      For A25A-FXS:
      Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2023 - ]
      X0A61 Battery Saver Request Sending Battery saver demand transmission history. For T24A-FTS:
      Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2022 - ]
      For A25A-FXS:
      Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2023 - ]
      X0A62 Power Source Management Load Control Enforcement The power supply management load control enforcement history. -
  2. CLEAR VEHICLE CONTROL HISTORY (POWER DISTRIBUTION BOX ASSEMBLY) 
    NOTE:

    By performing this procedure, all stored Vehicle Control History (RoB) will be cleared.

    1. According to the display on the GTS, clear the Vehicle Control History (RoB).

      Body Electrical > Power Distribution Box > Utility 

      Tester Display
      Vehicle Control History (RoB)