System Check Mode (DTC Clear/Recheck)

HINT:

Service Check Mode is operated as follows.

Fig 1: System Check Mode (DTC Clear/Recheck) Flow Chart

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1. Service Check Mode
   1. Start the Diagnosis System.
      SERVICE CHECK MODE SPECIFICATION
      
      

      Display Item	Function
      Components Names/*1	List of component names including optional components (15 components max.) are displayed. When the names are not identified, their physical addresses are displayed.
      Check Result/*2	Check results are displayed.
      Memory Clear switch/*3	Pressing this switch for 3 sec. deletes all the information about master component registration.
      DTC Clear switch/*4	Pressing this switch for 3 sec. deletes diagnosis memory of all the components. It deletes Service Check results and the screen displaying the check results.
      Recheck/*5	Pressing this switch performs Service Check again.
      MENU/*6	Pressing this switch activates the Diagnosis Menu screen.
      LAN Monitor screen switch/*7	Pressing this switch activates the LAN Monitor screen, which displays the logical address 01 with DTC D0 - FE.

      Components:/*1 

      Fig 2: Service Check Mode Menu

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      COMPONENTS DESCRIPTION
      
      

      Display	Name
      RSE-ECU	Multi-display Controller Sub-assy
      Rr-TV	Television Display Assy

      HINT:

      Service Check displays the check results based on the information obtained from each component's response to "System Check Execution" and "Diagnosis Memory Request", and the information of "Current DTC Notification" (the Unit Check that will be displayed on the next screens.).

   2. Read Check Result
      READ CHECK RESULT SPECIFICATION
      
      

      Check Result	Meaning
      OK	No DTC is identified.
      EXCH	One or more DTC requesting for exchange are detected.
      CHEK	One or more DTC requesting for check are detected.
      NCON	No connection response to Diagnosis System start-up, whereas it has the connection response to the AVC-LAN system when the power switch is turned on (when IG is turned to ACC).
      Old	One or more DTC are detected because of old version.
      NRES	No response to the information about the Diagnosis System, whereas it responds to the Diagnosis System start-up.

      HINT:

      • After repairing and checking, press "Code CLR" for more than 3 seconds to delete diagnosis memory.
      • After deleting diagnosis memory, press "Recheck" and make sure "OK" is displayed on the screen.
   3. "EXCH", "CHEK" and "Old" can be used as switches to activate "Unit Check Mode" for detailed information. Check troubled parts of the components in this mode by referring to the DTC code list.
      ITEM DESCRIPTION
      
      

      Display Item	Description
      Component name/*1	Name of component to be checked is displayed.
      DTC clear switch/*2	Pressing this switch for 3 sec. deletes DTC memory of the selected diagnosis component.
      Service check mode screen switch/*3	Pressing this returns to the Service Check Mode screen.
      Date/Time/*4	The date and time stamped at the time of DTC occurrence are displayed in the order of year-month-day-hour-minute-second. (If the date and time data is invalid, it is displayed as a blank.)
      Current/*5	Up to 6 DTC codes detected during the System Check are displayed.
      Memory/*6	DTC memories stored and current DTC Notification are displayed.

      Fig 3: Unit Check Mode Menu

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT:

      • Detecting Unit DTC activates the Unit Check Mode on the screen.
      • In the Unit Check Mode, DTC which is identified as "EXCH" in the Service Check is displayed as classified into Current DTC and Past DTC.
   4. "LAN Monitor" can be used as a switch to activate "LAN Monitor" for detailed information. Check faulty parts of the components in this mode by referring to the DTC code list.
      ITEM DESCRIPTION
      
      

      Display Item	Description
      Component name/*1	Name of component to be checked is displayed.
      Segment/*2	Logical address codes corresponding to DTC are displayed.
      DTC/*3	DTC is displayed.
      Sub-Code (address numbers of related components)/*4	Physical address codes memorized together with DTC are displayed.
      Sub-code (Connection confirmation number) /*5	Connection confirmation numbers memorized together with DTC are displayed.
      Sub-code (Number of occurrence) /*6	The number of occurrence of the same DTC is displayed.

      Fig 4: LAN Monitor Menu (1 Of 2)

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 5: LAN Monitor Menu (2 Of 2)

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT:

      • Detecting no LAN DTC activates the LAN Monitor on the screen.
      • The LAN Monitor chooses and displays the LAN DTC out of DTC of components identified as "CHEK" in the LAN Monitor.
   5. Read Check Result
      READ CHECK RESULT REFERENCE
      
      

      Check Result	Meaning
      OK	No DTC is identified.
      CHEK	One or more DTC requesting for check are detected.
      NCON	No connection response to Diagnosis System start-up, whereas it has the connection response to the AVC-LAN system when the power switch is turned on (when IG is turned to ACC).
      NRES	No response to the information about the Diagnosis System, whereas it responds to the Diagnosis System start-up.
      Old	One or more DTC are detected because of old version.

      HINT:

      • After repairing and checking, press "Code CLR" for more than 3 seconds to delete diagnosis memory.
      • After deleting diagnosis memory, press "Recheck" and make sure "OK" is displayed on the screen.