RM38T0EC _56 Audio / Visual / Telematics _111969 PARK ASSIST / MONITORING _0586612 PARKING ASSIST MONITOR SYSTEM U

PARK ASSIST / MONITORING  PARKING ASSIST MONITOR SYSTEM  TERMINALS OF ECU  


REAR TELEVISION CAMERA ASSEMBLY


E407303N04
1.865,0.865 2.24,1.104 0.375,0.24 1.917,0.896 2.375,1.094 0.458,0.198 10 false U53

a.

Disconnect the rear television camera assembly connector.


b.

Measure the voltage on the wire harness side connector according to the value(s) in the table below.

Terminal No. (Symbol) Terminal Description Condition Specified Condition
U53-4 (CB+) - Body ground Power source Ignition switch ON 6 to 9 V


c.

Reconnect the rear television camera assembly connector.


d.

Measure the resistance and check for pulses at each terminal of the connector.

Terminal No. (Symbol) Terminal Description Condition Specified Condition
U53-1 (CANH) - Body ground CAN communication line - -
U53-2 (CANL) - Body ground CAN communication line - -
U53-3 (CGND) - Body ground Camera ground Always Below 1 Ω
U53-6 (CV+) - U53-5 (CV-) Video signal Ignition switch ON
Shift position in R
Camera lens not covered, displaying image 		Pulse generation
(Refer to waveform 1)
Ignition switch ON
Shift position in R
Camera lens covered, blacking out screen 		Pulse generation
(Refer to waveform 2)
U53-7 (SGND) - Body ground Camera ground (shield) Always Below 1 Ω


e.
E265840C49
1.51,1.948 1.25,1.479 true 0.792,4.094 1.146,3.583 true 0.813,2.021 1.115,1.583 true 1.521,4.042 1.281,3.531 true 0.229,0.229 0.542,0.427 0.313,0.198 10 false *a 0.396,1.052 0.76,1.313 0.365,0.26 10 false GND 0.396,3.208 0.76,3.469 0.365,0.26 10 false GND 0.26,2.271 0.625,2.531 0.365,0.26 10 false *b 0.646,4.073 1.01,4.333 0.365,0.26 10 false *c 0.656,1.979 1.021,2.24 0.365,0.26 10 false *c 1.51,1.969 1.875,2.229 0.365,0.26 10 false *d 1.542,4.052 1.906,4.313 0.365,0.26 10 false *d
*a Waveform 1 (camera lens not covered, displaying image)
*b Waveform 2 (camera lens covered, blacking out screen)
*c Synchronization Signal
*d Video Waveform


Reference (Oscilloscope waveform):

i.

Waveform 1 (camera lens is not covered, displaying an image)

Item Content
Measurement terminal U53-6 (CV+) - U53-5 (CV-)
Measurement setting 200 mV/DIV., 50 μs./DIV.
Condition Ignition switch ON, shift position in R, camera lens not covered, displaying image

HINT:
·

The video waveform changes according to the image sent by the rear television camera assembly.

·

The video waveform is constantly output when the ignition switch is ACC.




ii.

Waveform 2 (camera lens is covered, blacking out the screen)

Item Content
Measurement terminal U53-6 (CV+) - U53-5 (CV-)
Measurement setting 200 mV/DIV., 50 μs./DIV.
Condition Ignition switch ON, shift position in R, camera lens covered, blacking out screen

HINT:
·

The video waveform changes according to the image sent by the rear television camera assembly.

·

The video waveform is constantly output when the ignition switch is ACC.






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