Inspection Procedure

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 (P and R).

   OK 

   SHIFT LEVER POSITION CHART
   
   

   Shift Lever Position	Display
   R	ON
   P	OFF

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT:

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

NG :  Go to step  4

OK : Go to next step 

1. Disconnect multi-display connector.
   Fig 2: Identifying Multi-Display Connector h1

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect navigation 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
   h1-15 (REV) - z17-20 (REV)	Always	Below 1 Ω
   h1-15 (REV) - Body ground	Always	10 kΩ or higher

NG : REPAIR OR REPLACE HARNESS OR CONNECTOR 

Fig 3: Identifying Navigation ECU Connector z17

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK : Go to next step 

1. Reconnect the multi-display connector.
2. Measure the voltage according to the value (s) in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Condition	Specified Condition
   z17-20 (REV) - Body ground	Engine switch is on (IG). Shift lever Is moved to Reverse position.	10 to 14 V
   z17-20 (REV) - Body ground	Engine switch is on (IG). Shift lever is moved to any position except Reverse.	Below 1 V

NG : REPLACE MULTI-DISPLAY 

Fig 4: Identifying Multi-Display Connector z17

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OK : REPLACE NAVIGATION ECU 

1. Measure the voltage of the junction block.

   Standard voltage 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Shift Lever Position	Specified Condition
   V2-2 (BACK) - Body ground	R	10 to 14 V
   V2-2 (BACK) - Body ground	Not R	Below 1 V

NG : REPLACE MAIN BODY ECU LH 

Fig 5: Identifying Main Body ECU LH Connector Terminal V2

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OK : Go to next step 

1. Disconnect the L97 display connector.
2. Disconnect the W2 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
   K46-13 (REV) - V2-2 (BACK)	Always	Below 1 Ω
   K46-13 (REV) - Body ground	Always	10 kΩ or higher

NG : REPAIR OR REPLACE HARNESS OR CONNECTOR 

Fig 6: Identifying K46 Multi-Display Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK : REPLACE MULTI-DISPLAY