Without Scan Tool
DIAGNOSIS FUNCTIONError codes over tuner and connected equipment are displayed on the screen of tuner.
a. Diagnosis start-up
For shifting to diagnosis mode, push 'CD" button 3 times with pressing "1" and "6" of TRUCK TUNE APS button at the same time while the audio power is OFF and ACC is ON.
In diagnosis mode, by pressing "CD" button for 2 seconds or turning the ignition key OFF the diagnosis mode is released.
b. LAN check
When starting up the diagnosis mode, the mode turns to LAN check mode, the screen displays the code numbers (physical address) of tuner and connected equipment. Smaller codes are displayed in order, displayed code numbers are switched by operating TUNE "UP" or TUNE "DOWN" button. In LAN check mode, by pressing "5" of TRUCK TUNE APS button for more than 2 secs., diagnosis memory of each equipment can be deleted, when deletion is completed, the mode returns to LAN check mode.
Code No. (physical address) List
c. System check
When pressing "1" of TRUCK TUNE APS button in LAN check mode, the mode turns to the system check mode, the system performs self diagnosis of connected equipment and displays the results. The smaller code numbers (physical address) are displayed in order (code No. (physical address), diagnosis code, support code of diagnosis code (object equipment)). When no error is detected in the system, "00" is displayed. When an error code is detected, up to 6 codes per one system are displayed. Pressing TUNE "UP" or TUNE "DOWN" switches the display. In the system check mode, when pressing "6" of TRUCK TUNE APS button the mode returns to LAN check mode.
d. Diagnosis memory
In LAN check mode, when pressing "2" of TRUCK TUNE APS button the mode turns to the diagnosis memory mode. The results of self diagnosis performed over tuner and connected equipment are memorized and displayed. The smaller code numbers (physical address) are displayed in order (code No. (physical address), periodic communication number when error occurs, diagnosis code, and support code of diagnosis code (object equipment)). When no error is detected in the system, "00" is displayed. When an error code is detected, up to 6 codes per one system are displayed. Pressing TUNE "UP" or TUNE "DOWN" switches the display. Each diagnosis code is same as code in the system check mode. When pressing "6" of TRUCK TUNE APS button, the mode returns to LAN check mode.