DTC Check / Clear [09/2015 - ]

CHECK DTC (CHECK USING TECHSTREAM)
1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Navigation System / Trouble Codes.
5. Check for DTCs, and then write them down.
6. Check the details of the DTC(s).
CLEAR DTC (CLEAR USING TECHSTREAM)
1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Navigation System / Trouble Codes.
5. Clear the DTCs.

START DIAGNOSTIC MODE

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 engine switch is turned on (IG), check that the map is displayed before starting diagnostic mode. Otherwise, some items cannot be checked.
Start diagnostic mode using either of the 2 methods below.

Method 1

Start the engine.

While pressing and holding the "MENU" switch of the remote touch, operate the light control switch: Off → Tail → Off → Tail → Off → Tail → Off.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

TEXT IN ILLUSTRATION

Diagnostic mode starts and the "Service Menu" screen will be displayed. Service inspection starts automatically and the result will be displayed.

Method 2
NOTE:
If the operation fails and diagnostic mode cannot be entered, turn the accessory meter assembly screen display on and off once, and then perform the procedures listed below from the first step again. (Only turning the multi-media module receiver assembly power supply on and off will not work.)
1. Start the engine.
2. Turn the accessory meter assembly screen display off.
3. Turn the multi-media module receiver assembly power supply off.
4. Press the ">" switch 5 times, and then press the "<" switch 5 times within 15 seconds.
  
  Fig 1: Turn The Multi-Media Module Receiver Assembly Power Supply Off
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Diagnostic mode starts and the "Service Menu" screen will be displayed. Service inspection starts automatically and the result will be displayed.

FAILURE DIAGNOSIS
1. The "Failure Diagnosis" screen will be displayed by pressing the "Failure Diagnosis" switch on the "Service Menu" screen.
  
  Fig 2: Screen Display - Failure Diagnosis
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
SYSTEM CHECK
1. The "System Check Mode" screen will be displayed by selecting "System Check" on the "Failure Diagnosis" screen.
  
  Fig 3: Identifying System Check Button
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

CHECK DTC (CHECK USING SYSTEM CHECK MODE SCREEN)

System check mode screen description

Fig 4: Identifying System Check Mode Screen Display

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

SCREEN DESCRIPTION

Display	Content
*a: Node position number for devices connected to the MOST network.	MOST network node position numbers are provided for devices connected to the MOST network.
*b: Device Name List No. 1	Device Name List No. 1 displays some of the devices that make up the navigation system. The names of the components from Device Name List No. 1 are shown in the following table.
*c: Check Result	Result codes for all devices are displayed. When "MOST" is displayed for the result, select "MOST" on the accessory meter assembly to display the "MOST Line Check" screen.
*d: Memory Clear	Present and history DTCs and registered connected device names are cleared. Select "Memory CLR" for 3 seconds.
*e: Recheck	A system check will be performed again after the memory is cleared. "Recheck" will dim during a system check.
*f: Device Name List No. 2	Device Name List No. 2 displays some of the devices that make up the navigation system. The names of the components from Device Name List No. 2 are shown in the following table.

*B: DEVICE NAME LIST NO. 1 DESCRIPTION

Name	Component	Connection Method
EMV-M	Multi-media module receiver assembly	-
AMP	Stereo component amplifier assembly	Communication line for MOST network
REAR	Television display assembly*1	Communication line for MOST network
DISP	Accessory meter assembly	Communication line for AVC-LAN
Rr-CONT	Rear power seat switch (audio switch)*2	Communication line for AVC-LAN
CLOCK	Clock assembly	Communication line for AVC-LAN
R-TOUCH	Remote touch	Local bus communication line

*1: w/ Rear Seat Entertainment System
*2: w/ Audio Switch

*C: CHECK RESULT DESCRIPTION

Result	Meaning	Action
OK	The device does not respond with a DTC.	-
MOST	MOST communication error	Perform "MOST Line Check" to check the connection of each device on the MOST network.
DETAIL	The device responds with a DTC.	Look up the DTC in "Unit Check Mode".
NCON	The device was previously present, but does not respond in diagnostic mode.	- Check power supply wire harness of the device. - Check the AVC-LAN or MOST network of the device.
NRES	The device responds in diagnostic mode, but gives no DTC information.	- Check power supply wire harness of the device. - Check the AVC-LAN or MOST network of the device.

*F: DEVICE NAME LIST NO. 2 DESCRIPTION

Name	Component	Connection Method
VTR/RR*1	Rear seat console armrest base (video terminal)3 Video terminal4	Vehicle wire harness
AUX/VTR	No. 1 stereo jack adapter assembly	Vehicle wire harness
IFBOX_USB	No. 1 stereo jack adapter assembly	Communication line for USB
BD-P/RR*1	Disc player assembly	Vehicle wire harness
BD-P/RR_HDMI*1	Disc player assembly	GVIF cable (HDMI cable)
SB-DISP/RH*1	Television display assembly	Communication line for GVIF
HP-JACK-1*1	Headphone terminal RH	Vehicle wire harness
HP-JACK-2*1	Headphone terminal LH	Vehicle wire harness
CAA	Rear television camera assembly	Vehicle wire harness
DCM*2	DCM (Telematics Transceiver)	Communication line for USB

*1: w/ Rear Seat Entertainment System
*2: w/ Manual (SOS) Switch
*3: for 4-passenger with Ottoman
*4: for 5-passenger with Ottoman

Unit check mode screen description

Fig 5: Unit Check Mode Screen Description

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

SCREEN DESCRIPTION

Display	Content
*a: Device name	Target device
*b: History DTC	Diagnostic memory results and stored DTCs are displayed.
*c: Current DTC	DTCs output in the service check are displayed.
*d: DTC	DTC (Diagnostic Trouble Code)
*e: Timestamp	The time and date of history DTCs are displayed. (The year is displayed in 2-digit format.)
*f: Diagnosis clear switch	Selecting "Code CLR" for 3 seconds clears the diagnostic memory data of the target device. (Both diagnostic system check result and the displayed data are cleared.)

HINT:

This screen is updated once per second.
A maximum of 6 DTCs can be displayed for history and present DTCs.

MOST line check screen description

HINT:

The inspection will be performed at the time the screen changes from "System Check Mode" to "MOST Line Check".
The master unit checks the connection of each device on the MOST network.

Fig 6: MOST Line Check

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

SCREEN DESCRIPTION

Display	Content
*a: Node position number for devices connected to the MOST network.	MOST node position numbers are provided for devices connected to the MOST network.
*b: Device Name List	Device Name List displays some of the devices that make up the navigation system. The names of the components from Device Name List are shown in the following table.
*c: Check Result	The master unit displays the check result on the screen based on the response information from each slave unit.

*B: DEVICE NAME LIST

Name	Component
EMV-M	Multi-media module receiver assembly
AMP	Stereo component amplifier assembly
RSE*	Television display assembly

*: w/ Rear Seat Entertainment System

*C: CHECK RESULT

Name	Component
OK	There was a response for the connection check during the MOST line check.
NCON	There was no response for the connection check during the MOST line check.

HINT:

The device name and result will not be displayed if there is no system registration record and no response for the connection check during the MOST line check even if the device is connected to the MOST network.

Read the system check result.

Fig 7: Reading System Check Result

If the check result is "DETAIL", select the displayed check result to view the results on the "Unit Check Mode" screen and record them.
NOTE:
A maximum of 6 DTCs can be displayed for history and present DTCs on the "Unit Check Mode" screen. Therefore, when 6 DTCs are displayed, troubleshoot those DTCs first and then check the "Unit Check Mode" screen again to see if any other DTCs are displayed.

HINT:
- When all results are "OK", no DTCs are stored.
- When "MOST" is displayed for the result, select "MOST" to display the "MOST Line Check" screen and check the MOST network.
- Changing to the "MOST Line Check" screen is possible only when the MOST network is malfunctioning and "MOST" is displayed for the result.
- If the MOST network had a malfunction in the past, DTCs will be displayed in the Memory column.
- When "NCON" is displayed for all devices connected via the AVC-LAN, or when all device names are not displayed, check if there is a short circuit in the AVC-LAN or devices connected to the AVC-LAN. Repair or replace parts as necessary (Refer to AVC-LAN Circuit [09/2015 - ] ).
- When proceeding to view the results of another device, select the "Back" switch to return to the "System Check Mode" screen. Repeat the above step to view the results of other devices.

Check the details of the DTC(s) (Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2015 - ] ).

NOTE:

The navigation system outputs DTCs for the following system. When DTCs other than those in Diagnostic Trouble Code Chart for the navigation system are output, refer to Diagnostic Trouble Code Chart for the relevant system.

System	Proceed to
Audio and Visual System	Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2015 - ]
Parking Assist Monitor System (for Camera built-in ECU)	Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2015 - ]
Safety Connect System*1	Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2015 - ]
Lexus Enform System*1	Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2015 - ]
Rear Seat Entertainment System*2	Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2015 - ]

*1: w/ Manual (SOS) Switch
*2: w/ Rear Seat Entertainment System

DTC CLEAR/RECHECK (CLEAR USING SYSTEM CHECK MODE SCREEN)
1. Clear DTCs
  
  Fig 8: Identifying Memory CLR Button
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Select "Memory CLR" for 3 seconds.
  2. Confirm that the check results are cleared.
    HINT:
    - To clear the DTCs for a specific device, clear the DTCs using the "Unit Check Mode" screen.
    - When clearing DTCs using the "Unit Check Mode" screen, select "Code CLR" for 3 seconds.
2. Recheck
  
  Fig 9: Identifying Recheck Button
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Press the "Recheck" switch.
  2. Confirm that all diagnostic codes are "OK" when the check results are displayed. If a result other than "OK" is displayed, perform troubleshooting again.
    
    Fig 10: Confirming All Diagnostic Codes Are OK
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    HINT:
    
    When the DTCs are cleared using the "Unit Check Mode" screen, select "Back" to return to the "System Check Mode" screen and perform this operation.
FINISH DIAGNOSTIC MODE
1. Turn the engine switch off.