Inspection Procedure

Fig 1: Checking Harness And Connector (Navigation Receiver Assembly Television Camera)

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1. Disconnect the K7 navigation receiver assembly connector.
2. Disconnect the X1 camera connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY TELEVISION CAMERA) RESISTANCE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   K7-22 (V+) - X1-1 (CV+)	Always	Below 1 Ω
   K7-23 (V-) - X1-2 (CV-)	Always	Below 1 Ω
   K7-21 (CGND) - X1-4 (CGND)	Always	Below 1 Ω
   K7-24 (CA+) - X1-3 (CB+)	Always	Below 1 Ω
   K7-22 (V+) - Body ground	Always	10 kΩ or higher
   K7-23 (V-) - Body ground	Always	10 kΩ or higher
   K7-21 (CGND) - Body ground	Always	10 kΩ or higher
   K7-24 (CA+) - Body ground	Always	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

Fig 2: Checking Navigation Receiver Assembly

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1. Disconnect the X1 camera connector.
2. Measure the voltage according to the value(s) in the table below.

   Standard voltage 

   NAVIGATION RECEIVER ASSEMBLY VOLTAGE SPECIFICATION
   
   

   Tester Connection	Switch Condition	Specified Condition
   X1-3 (CB+) - X1-4 (CGND)	Ignition switch ON, shift lever R position	5.5 to 7.05 V

   Result 

   NAVIGATION RECEIVER ASSEMBLY RESULT CHART
   
   

   Result	Proceed to
   OK	A
   NG (for Column Shift Type)	B
   NG (for Floor Shift Type)	C

B: REPLACE NAVIGATION RECEIVER ASSEMBLY  (See NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) )

C: REPLACE NAVIGATION RECEIVER ASSEMBLY  (See NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) )

A: Go to next step 

Fig 3: Checking Television Camera Assembly

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1. Reconnect the X1 camera connector.
2. Using an oscilloscope, check the waveform.

   Waveform (Reference) 

   OSCILLOSCOPE WAVEFORM REFERENCE
   
   

   Item	Content
   Tester Connection	X1-1 (CV+) - X1-2 (CV-)
   Tool Setting	0.2 V/DIV., 0.2 μsec./DIV.
   Condition	Ignition switch ON, shift lever R position

   Fig 4: Oscilloscope Waveform

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK: Correct waveform is as shown. 

   Result 

   OSCILLOSCOPE RESULT CHART
   
   

   Result	Proceed to
   NG	A
   OK (for Column Shift Type)	m
   OK (for Floor Shift Type)	C

B: REPLACE NAVIGATION RECEIVER ASSEMBLY  (See NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) )

C: REPLACE NAVIGATION RECEIVER ASSEMBLY  (See NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) )

A: REPLACE TELEVISION CAMERA ASSEMBLY  (see REMOVAL  )