Toyota Tundra. Manual — part 539

HINT:



If all check results are "OK", go to the communication DTC check.



If a device name is not known, its physical address is displayed.

HINT:

When proceeding to view the results of another device, press the "Service" switch to return to
the "System Check Mode" screen. Repeat this step.

Fig. 293: Diagnostic Menu Screen Display - System Check Mode

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Navigation - Tundra

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Read the communication diagnostic check result.

1. Return to the "System Check Mode" screen, and press the "LAN Mon" switch to enter the

"LAN Monitor" screen.

Fig. 294: Diagnostic Menu Screen Display - LAN Mon
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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.

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.



When proceeding to view the results of another device, press the "Service" switch to
return to the original "LAN Monitor" screen. Repeat this step.

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Navigation - Tundra

Fig. 295: Diagnostic Menu Screen Display - LAN Monitor
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

5. DTC CLEAR/RECHECK

a. Clear DTC

1. Press the "Code CLR" switch for 3 seconds.

2. The check results are cleared.

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Fig. 296: Diagnostic Menu Screen Display - Code CLR
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Recheck DTC

1. Press the "Recheck" switch.

Fig. 297: Diagnostic Menu Screen Display - Recheck Switch
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2. Confirm that all diagnostic codes are "OK" when the check results are displayed. If a code

other than "OK" is displayed, troubleshoot again.

Fig. 298: Diagnostic Menu Screen Display - System Check Mode
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

3. Press the "LAN Mon" switch to change to the "LAN Monitor" screen.

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Navigation - Tundra