Inspection Procedure

1. Move the shift lever to R and check if the back-up light comes on.

   OK: The back-up light comes on. 

NG: GO TO LIGHTING SYSTEM  (See PROBLEM SYMPTOMS TABLE )

OK: Go to next step 

1. Enter the "Display Check" mode (Vehicle Signal Check Mode) (See SYSTEM DESCRIPTION ).
2. Check that the display changes between ON and OFF according to the shift lever operation (P and R).

   OK 

   SHIFT LEVER POSITION
   
   

   Shift Lever Position	Display
   R	ON
   Except R	OFF

   Fig 1: Display Screen - 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 3 

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

1. Disconnect the J50 connector from the multi-display.
2. Measure the voltage according to the value (s) in the table below.

   Standard Voltage 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   J50-13 (REV) - Body ground	Engine switch is on (IG). Shift lever is in R.	11 to 14 V
   J50-13 (REV) - Body ground	Engine switch is on (IG). Shift lever is in any position except R.	Below 1 V

Fig 2: Identifying J50 Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: Go to step 4 

OK: REPLACE MULTI-DISPLAY  (See REMOVAL )

1. Disconnect the Q2 connector from the main body ECU LH (cowl side junction block LH)
   Fig 3: Identifying J50 Connector Terminal REV

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

   Standard Resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   J50-13 (REV) - Q2-2 (BACK)	Always	Below 1 Ω
   J50-13 (REV) - Body ground	Always	10 kΩ or higher

Fig 4: Identifying Q2 Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the LJ connector from the main body ECU LH (cowl side junction block LH).
2. Measure the voltage according to the value (s) in the table below.

   Standard Voltage 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   U-23 (BKUP) - Body ground	Engine switch is on (IG). Shift lever is in R.	11 to 14 V
   U-23 (BKUP) - Body ground	Engine switch is on (IG). Shift lever is in any position except R.	Below 1 V

Fig 5: Identifying LJ Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE MAIN BODY ECU LH