Without M-MDS (On-board Diagnostic Test Mode)
- Switch the ignition to ACC or ON.
- Turn the audio unit power to OFF.
- While pressing the POWER/VOLUME switch, simultaneously press the AUX button and the PRESET 2 button for 3 s or more.
NOTE:
- If several DTCs are in the memory, they can be displayed using the SEEK/TRACK button (up or down).
- Switch the ignition OFF (LOCK) to stop the on-board diagnostic test mode.