DCM Data Signal Circuit between Navigation ECU and DCM: Procedure

1. Disconnect the F135 DCM connector.
   Fig 1: Identifying F135 DCM & F136 Display And Navigation Module Display Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the F136 display and navigation module display connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F135-1-1 (USB-) - F136-1-1 (USB-)	Always	Below 1 Ω
   F135-1-2 (USB+) - F136-1-2 (USB+)	Always	Below 1 Ω
   F135-1-3 (USBS) - F136-1-3 (USBS)	Always	Below 1 Ω
   F135-2 (USBG) - F136-2 (USBG)	Always	Below 1 Ω
   F135-3 (VOT+) - F136-7 (VOR+)	Always	Below 1 Ω
   F135-4 (USBV) - F136-4 (USBV)	Always	Below 1 Ω
   F135-5 (VOT-) - F136-6 (VOR-)	Always	Below 1 Ω
   F135-6 (VOR-) - F136-5 (VOT-)	Always	Below 1 Ω
   F135-7 (VOR+) - F136-3 (VOT+)	Always	Below 1 Ω
   F135-1-1 (USB-) - Body ground	Always	10 kΩ or higher
   F135-1-2 (USB+) - Body ground	Always	10 kΩ or higher
   F135-1-3 (USBS) - Body ground	Always	10 kΩ or higher
   F135-2 (USBG) - Body ground	Always	10 kΩ or higher
   F135-3 (VOT+) - Body ground	Always	10 kΩ or higher
   F135-4 (USBV) - Body ground	Always	10 kΩ or higher
   F135-5 (VOT-) - Body ground	Always	10 kΩ or higher
   F135-6 (VOR-) - Body ground	Always	10 kΩ or higher
   F135-7 (VOR+) - Body ground	Always	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *1	Front view of wire harness connector (to DCM (Telematics Transceiver))
   *2	Front view of wire harness connector (to Display and Navigation Module Display)

NG → REPLACE NO. 1 NAVIGATION WIRE 

OK → See step   2