Reverse Signal Circuit: 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  LIGHTING SYSTEM 

OK: Go to next step 

1. Enter "Vehicle Signal Check Mode".

   HINT: 

   • Navigation system (for DVD). Refer to OPERATION CHECK
   • Navigation system (for HDD). Refer to OPERATION CHECK
   Fig 1: Screen Display - Vehicle Signal Check Mode

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check that the display changes between ON and OFF according to the shift lever operation (P and R).

   OK

   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 → See step   3 

OK → See step   4 

1. Disconnect the E62 connector from the display and navigation module display.
2. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester connection	Condition	Specified condition
   E62-16 (REV) - Body ground	Engine switch on (IG) Shift lever in R	11 to 14 V
   E62-16 (REV) - Body ground	Engine switch on (IG) Shift lever in any position except R	Below 1 V

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (DISPLAY AND NAVIGATION MODULE DISPLAY - PNP SWITCH) 

OK → See step   5