DTC CHECK / CLEAR 1. CHECK DTC (CHECK USING TECHSTREAM)
(a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON.
(c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Navigation System / Trouble Codes.
(e) Check for DTCs, and then write them down. (f) Check the details of the DTC(s).
2. CLEAR DTC (CLEAR USING TECHSTREAM) (a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON. (c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Navigation System / Trouble Codes.
(e) Clear the DTCs. 3. 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 ignition switch is turned to ON, check that the map is
displayed before starting diagnostic mode. Otherwise, some items cannot
be checked.
(a) Start the engine. (b)
While pressing and holding the "AUDIO" switch of the navigation
receiver assembly, operate the light control switch: Off → Tail → Off →
Tail → Off → Tail → Off. (c) Diagnostic mode starts
and the "Service Menu" screen will be displayed. Service inspection
starts automatically and the result will be displayed.
 4. FAILURE DIAGNOSIS (a) The "Failure Diagnosis" screen will be displayed by pressing the "Failure Diagnosis" switch on the "Service Menu" screen.
 5. SYSTEM CHECK (a) The "System Check Mode" screen will be displayed by pressing the "System Check" switch on the "Failure Diagnosis" screen.
 6. CHECK DTC (CHECK USING SYSTEM CHECK MODE SCREEN)
HINT: When
"NCON" is displayed for all devices connected using 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 (See page  ). (a) System check mode screen description
 Screen Description |
Display | Content | |
*a: 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.
| | *b: Check Result |
Result codes for all devices are displayed. | |
*c: Memory Clear |
- Present and history DTCs and registered connected device names are cleared.
- Press the "Memory CLR" switch for 3 seconds.
| | *d: Recheck |
- A system check will be performed again after the memory is cleared.
- The "Recheck" switch will dim during a system check.
| | *e: 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.
| *a: Device Name List No. 1 Description |
Name | Component |
Connection Method | |
AVN | Navigation receiver assembly |
- | | EXT BOX |
Stereo component tuner assembly | Communication line for LVDS | |
DSP-AMP | Stereo component amplifier assembly |
Communication line for AVC-LAN | *b: Check Result Description |
Result | Meaning |
Action | | OK |
The device does not respond with a DTC. |
- | | 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 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 of the device. | *e: Device Name List No. 2 Description |
Name | Component |
Connection Method | |
AUX/USB | No. 1 stereo jack adapter assembly |
Vehicle wire harness | (b) Unit check mode screen description
 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 | Pushing
this switch for 3 seconds clears the diagnostic memory data of the
target device. (Both response to 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.
(c) Read the system check result.
 (1)
If the check result is "DETAIL", touch the displayed check result to
view the results on the "Unit Check Mode" screen and record them. NOTICE:
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", this means that no DTCs are output.
- When proceeding to view the results of another device, press the "Back"
switch to return to the "System Check Mode" screen. Repeat the step
above to view the results of other devices.
(2) Check the details of the DTC(s) (See page
). 7. DTC CLEAR/RECHECK (CLEAR USING SYSTEM CHECK MODE SCREEN)
(a) Clear DTCs  (1) Press the "Memory CLR" switch 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 the DTCs using the "Unit Check Mode" screen, press the "Code CLR" switch for 3 seconds.
(b) Recheck  (1) Press the "Recheck" switch.
(2)
Confirm that all diagnostic codes are "OK" when the check results are
displayed. If a code other than "OK" is displayed, troubleshoot again.
 HINT: When
the DTCs are cleared using the "Unit Check Mode" screen, press the
"Back" switch to return to the "System Check Mode" screen and perform
this operation. 8. FINISH DIAGNOSTIC MODE (a) Turn the ignition switch off. | 
