Inspection Procedure

1. CHECK VEHICLE SIGNAL (DISPLAY CHECK MODE) 
   1. Enter the "Display Check" mode (Vehicle Signal Check Mode) (see DISPLAY CHECK MODE ).
   2. Check that the display changes between ON and OFF according to the shift lever operation.

   OK 

   SHIFT LEVER POSITION CHART
   
   

   Shift Lever Position	Display
   R	ON
   Except R	OFF

   Fig 1: Diagnosis Menu Screen Display - Vehicle Signal Check Mode

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT:

   This display is updated once per second. As a result, it is normal for the display to lag behind the actual change in the switch.

   NG:  Go to step  2

   OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE  (see PROBLEM SYMPTOMS TABLE )

2. CHECK REAR JUNCTION BLOCK ECU (BACK-UP SIGNAL) 
   1. Disconnect the L59 display connector.
      Fig 2: Identifying L59 Display Connector

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. Measure the voltage according to the value (s) in the table below.

      Standard voltage 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Condition	Specified Condition
   L59-13 (REV) -Body ground	Power switch ON (IG), shift lever R position	11 to 14 V
   L59-13 (REV) - Body ground	Power switch ON (IG), shift lever P position	Below 1 V

   Result 

   RESULT CHART
   
   

   Result	Proceed to
   NG	A
   OK (for DVD)	B
   OK (for HDD)	C

   B: REPLACE MULTI-DISPLAY  (See REMOVAL )

   C: REPLACE DISPLAY AND NAVIGATION ASSEMBLY  (See REMOVAL )

   A: Go to next Step 

3. CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY - REAR JUNCTION BLOCK ECU) 
   1. Disconnect the L59 display connector.
   2. Disconnect the S63 ECU connector.
   3. Measure the resistance according to the value (s) in the table below.

      Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Condition	Specified Condition
   L59-13 (REV) - S63-1 (BCK1)	Always	Below 1 Ω
   L59-13 (REV) -Body ground	Always	10 kΩ or higher

   Fig 3: Identifying L59 Display Connector And S63 ECU Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

   OK: Go to next Step 

4. REPLACE LUGGAGE ROOM JUNCTION BLOCK (REAR JUNCTION BLOCK ECU) 
   1. Temporarily replace the ECU with a new or normally functioning one.
   2. Check that the multi-display displays the rear view of the vehicle when the shift lever position is changed to R

Result 

B: REPLACE MULTI-DISPLAY  (See REMOVAL )

C: REPLACE DISPLAY AND NAVIGATION ASSEMBLY  (See REMOVAL )

A: END (LUGGAGE ROOM JUNCTION BLOCK IS DEFECTIVE)