System Check Mode (DTC Check)

HINT:

Illustrations may differ from the actual vehicle depending on the device settings and options. Therefore, some detailed areas may not be shown exactly the same as on the actual vehicle.

1. Start the diagnostic mode (see  DIAGNOSTIC START-UP/FINISH   ). 
2. Read the system check result. 
   1. If the check result is "EXCH," "CHEK" or "Old," touch the displayed check result to view the results on the "Unit Check Mode" screen and record them on the customer problem analysis check sheet.

   HINT:

   • If all check results are "OK," go to communication DTC check (go to step 3).
   • If a device name is not known, its physical address is displayed.
     Fig 1: Reading System Check Result (1 Of 2)

     Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

     HINT:

     When proceeding to view the results of another device, press the service switch to return to the "System Check Mode". Repeat step (a).

     Fig 2: Reading System Check Result (2 Of 2)

     Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Read the communication diagnostic check result. 
   1. Return to the "System Check Mode", and press the "LAN Mon" switch to enter the LAN monitor screen.
      Fig 3: Reading Communication Diagnostic Check Result (1 Of 3)

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. If the check result is "CHEK" or "Old," touch the displayed check result to view the results on the individual communication diagnostic screen and record them on the customer problem analysis check sheet.

   HINT:

   • If all check results are "No Err," the system judges that no DTC exists.
   • The sub-code (relevant device) will be indicated by its physical address.
     Fig 4: Reading Communication Diagnostic Check Result (2 Of 3)

     Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

     HINT:

     When Proceeding to view the results of another device, press the "Service" switch to return to the original "LAN Monitor" screen. Repeat step (b).

     Fig 5: Reading Communication Diagnostic Check Result (3 Of 3)

     Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002