DTC Check/Clear

HINT:

• Illustrations may differ from the actual vehicle screen depending on the device settings and options. Therefore, some detailed areas may not be shown exactly the same as on the actual vehicle screen.
• After the ignition switch is turned on (IG), check that the map is displayed before starting the diagnostic mode. Otherwise, some items cannot be checked.

1. Starting diagnostic mode 
   1. Start the engine.
   2. While pressing and holding the "INFO" switch, operate the light control switch: OFF → ON → OFF → ON → OFF → ON → OFF.
   3. The diagnostic mode starts and the "Service Check Mode" screen will be displayed. Service inspection starts automatically and the result will be displayed.
      Fig 1: Identifying INFO Switch

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Diagnosis system mode 
   Fig 2: Diagnostic Flow Chart

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Read the system check result. 
   Fig 3: Diagnostic Flow Chart

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. Service Check Mode
   2. System Check
      1. Start the diagnosis system.
         DISPLAY ITEM CHART
         
         

         Display Item	Function
         Component/*1	List of components including optional components (15 components max.) is displayed. When the names are not identified, their physical addresses are displayed.
         Check/*2	Check results are displayed.
         Memory CLR/*3	Selecting this for 3 sec. deletes all the information about master component registration.
         Code CLR/*4	Selecting this for 3 sec. deletes diagnosis memory of all the components. It deletes Service Check results and the screen displaying the check results.
         Recheck/*5	Selecting this performs System Check again.
         MENU/*6	Selecting this activates the Diagnosis Menu screen.
         LAN Mon/*7	Selecting this activates the LAN monitor screen.

         Fig 4: Screen Display - Service Check Mode

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

         Abbreviated component names are shown on the display. Details of each abbreviation are as follows: 

         DISPLAY CHART
         
         

         Display	Name
         EMV	Multi-display
         NAVI	Navigation ECU
         G/W	Gateway ECU
         AUDIO H/U	Radio receiver
         DSP-AMP	Stereo component amplifier
         CLOCK	Clock assembly
         -	-

         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 Mode and the LAN Monitor information that will be displayed on the next screens).

      2. Read Check Result.
         CHECK RESULT CHART
         
         

         Check Result	Meaning
         OK	No DTC is identified.
         EXCH	One or more DTCs requesting for exchange are detected.
         CHEK	One or more DTCs 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 ignition switch is turned on (when IG is turned to ACC).
         Old	One or more DTCs are detected because of an old version.
         NRES	No response to the information about the Diagnosis System, whereas it responds to the Diagnosis System start-up.
         No Err	No DTC is identified.

         HINT:

         • After repair and check, select "Code CLR" for more than 3 sec. to delete diagnosis memory.
         • After deleting diagnosis memory, select "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 these modes by referring to the DTC code list.
         Fig 5: Screen Display - Unit Check Mode

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
         DISPLAY ITEM CHART
         
         

         Display Item	Description
         Component/*1	Component to be checked is displayed.
         Code CLR/*2	Selecting this for 3 sec. deletes DTC memory of the selected diagnosis component.
         Service/*3	Selecting this returns to the System Check Mode screen.
         Data/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.

         HINT:

         • Detecting Unit DTC activates the Unit Check Mode on the screen.
         • In the Unit Check Mode, DTC identified as "EXCH" in the Service Check is displayed as classified into Current DTC and Past DTC.
   3. LAN Monitor
      1. Start the Diagnosis System.
         DISPLAY ITEM CHART
         
         

         Display Item	Function
         Component/*1	List of components including optional components (15 components max.) is displayed. When the names are not identified, their physical addresses are displayed.
         CHEK/*2	Check results are displayed.
         MENU/*3	Selecting this activates the service check mode screen.
         BACK/*4	Selecting this activates the service check mode screen.

         Fig 6: Screen Display - LAN Monitor

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

         HINT:

         System 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 LAN Monitor that will be displayed on the next screens).

      2. Read Check Result
         CHECK RESULT CHART
         
         

         Check Result	Meaning
         OK	No DTC is identified.
         EXCH	One or more DTCs requesting for exchange are detected.
         CHEK	One or more DTCs 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 ignition switch is turned on (when IG is turned to ACC).
         Old	One or more DTCs 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.
         No Err	No DTC is identified.

         HINT:

         • After repair and check, select "Code CLR" for more than 3 sec. to delete diagnosis memory.
         • After deleting diagnosis memory, select "Recheck" and make sure "OK" is displayed on the screen.
      3. "CHEK" can be used as a switch to activate "LAN Monitor" for detailed information. Check troubled parts of the components in these modes by referring to the DTC code list.
         DISPLAY ITEM CHART
         
         

         Display Item	Description
         Component/*1	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.
         Service/*7	Selecting this returns to the LAN monitor screen.

         Fig 7: Screen Display - LAN Monitor

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

         HINT:

         Detecting no LAN DTC activates the LAN Check Mode on the screen.

4. Finish diagnostic mode. 
   1. Turn the ignition switch off.