Audio System: Troubleshooting

DIAGNOSIS SYSTEM MODE (w/o Navigation system)
NOTE:
Diagnosis System Mode is operated as follows.

In case of a vehicle without navigation system, there is no navigation check mode. However, other modes except for this are same as a vehicle with navigation system.

Fig 1: Diagnosis System Mode (W/O Navigation System) Troubleshooting Flowchart
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. DIAGNOSIS START-UP
  To start the diagnosis menu, there are 2 ways: using a diagnosis check wire and using a switch.
2. START-UP BY SWITCH OPERATION
  1. Vehicle speed is 0 km/h (0 mph).
  2. Parking brake switch is pressed.
  3. Press the Display switch to display the Screen Adjustment screen.
    
    Fig 2: Identifying TRAF Display Switch
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. Repeatedly touch the upper and lower bottom parts of the left end of the screen 3 times.
    
    Fig 3: Locating Concealed Touch Switch
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. FINISHING DIAGNOSIS SYSTEM MODE
  Turn the ignition switch from ACC to OFF to finish the mode. If it is started by switch operation.
DIAGNOSIS SYSTEM MODE (w/ Navigation system) (See NAVIGATION SYSTEM - DIAGNOSIS )