Toyota Tundra Service Manual: Dtc Check / Clear

DTC CHECK / CLEAR

1. 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.
• If the system cannot enter the diagnostic mode, replace the radio and display receiver assembly.
  • for Column Shift Type: See page
  • for Floor Shift Type: See page
• Start diagnostic mode at least 15 seconds after turning the ignition switch to ON. Otherwise, some items cannot be checked.

(a) Turn the ignition switch to ON.

(b) While pressing and holding the "AUDIO" switch, operate the light control switch: off → turn on → turn off → turn on → turn off → turn on → turn off.

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

2. FAILURE DIAGNOSIS

(a) The "Failure Diagnosis" screen will be displayed by pressing the "Failure Diagnosis" switch on the "Service Menu" screen.

3. SYSTEM CHECK

(a) The "System Check Mode" screen will be displayed by pressing the "System Check" switch on the "Failure Diagnosis" screen.

4. CHECK DTC (CHECK USING SYSTEM CHECK MODE SCREEN)

(a) System check mode screen description

(b) Unit check mode screen description

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 ).

NOTICE:

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

5. 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.

6. FINISH DIAGNOSTIC MODE

(a) There are 2 methods to end diagnostic mode. Use one of them.

(1) Turn the ignition switch off.

(2) Press and hold the "AUDIO" switch for 3 seconds.