Display Signal Circuit between Inner Rear View Mirror Assembly and Television Camera Assembly: Procedure

1. Disconnect the S5 inner rear view mirror assembly connector.
2. Disconnect the Y1 rear television camera assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   S5-14 (CB+) - Y1-4 (CB+)	Always	Below 1 Ω
   S5-13 (CGND) - Y1-3 (CGND)	Always	Below 1 Ω
   S5-7 (CV+) - Y1-2 (CV+)	Always	Below 1 Ω
   S5-6 (CV-) - Y1-1 (CV-)	Always	Below 1 Ω
   S5-14 (CB+) - Body ground	Always	10 kΩ or higher
   S5-13 (CGND) - Body ground	Always	10 kΩ or higher
   S5-7 (CV+) - Body ground	Always	10 kΩ or higher
   S5-6 (CV-) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

Fig 1: Measuring Voltage On Connector Terminal S5

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   S5-14 (CB+) - S5-13 (CGND)	Ignition switch ON, shift lever in R	5.5 to 7.05 V

   TEXT IN ILLUSTRATION
   
   

   *a	Component with harness connected (Inner Rear View Mirror Assembly)

NG → See step   5 

OK: Go to next step 

1. Using an oscilloscope, check the waveform in illustration.
   Fig 2: Identifying Rear Television Camera Connector Terminal

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   TEXT IN ILLUSTRATION
   
   

   *a

   Component with wire harness connected (Inner Rear View Mirror Assembly)

   -

   -

   MEASUREMENT CONDITION
   
   

   Item	Content
   Tester Connection	S5-7 (CV+) - S5-6 (CV-)
   Tool Setting	0.2 V/DIV., 50 μs/DIV.
   Condition	Ignition switch ON, shift lever in R*1 Ignition switch ON, shift lever in R, screen blacked out by covering camera lens*2

   OK

   Waveform is as shown in illustration.

NG → See step   6 

OK → See step   4