| 1. | With the ignition switch ON (II), check the power switch. Will the power turn on by turning on the power switch? YES - Go to 2. NO - Go to the procedure ''Power switch will not turn ON''.n |
| 2. | Find out if all the switches do not work or if there is a specific switch that does not work, identify the switch in this case. Is there a specific one that does not work? YES - Faulty audio unit and front printed circuit board.n NO - Go to 3. |
| 3. | Check that the LCD display visions are normal. Are they normal? YES - Faulty audio unit and front printed circuit board. NO - Go to the procedure ''NO display vision appears on the screen''. n |