Inspection Procedure

1. Enter the "Display Check" mode and select "Vehicle Signal Check Mode" (See OPERATION CHECK  ).
2. Check that the display changes between ON and OFF according to the shift lever operation.

   OK 

   SHIFT LEVER POSITION REFERENCE
   
   

   Shift Lever Position	Display
   R	ON
   Except R	OFF

   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 

Fig 1: Diagnosis Display - Vehicle Signal Check Mode Screen

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OK: PROCEED TO NEXT CIRCUIT INSPECTION PROCEDURE IN PROBLEM SYMPTOMS TABLE  (See PROBLEM SYMPTOMS TABLE  )

1. Disconnect the F28 display connector.
2. Measure the voltage according to the value(s) in the table below.

   Standard Voltage 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   F28-13 (REV) - Body ground	Engine switch on (IG), shift lever moved to R	11 to 14 V
   F28-13 (REV) - Body ground	Engine switch on (IG), shift lever moved to other than R	Below 1 V

NG: Go to step 3 

Fig 2: Identifying Display And Navigation Module Display Connector Terminals

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OK: REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY  (See REMOVAL  )

1. Disconnect the F28 display connector.
2. Disconnect the C19 position switch connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   F28-13(REV) - C19-1	Always	Below 1 Ω
   F28-13 (REV) - Body ground	Always	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

Fig 3: Identifying Display And Navigation Module Display And Park/Neutral Position Switch Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: REPLACE PARK/NEUTRAL POSITION SWITCH  (See ON-VEHICLE INSPECTION )