RM3660EC _95 ADAS / AD _139716 ADVANCED DRIVER ASSISTANCE SYSTEM _0601172 LANE TRACING ASSIST SYSTEM(for NR Series Engine) U

ADVANCED DRIVER ASSISTANCE SYSTEM  LANE TRACING ASSIST SYSTEM(for NR Series Engine)  TERMINALS OF ECU  


CHECK FORWARD RECOGNITION CAMERA


A417823E09
2.063,0.75 2.458,1.01 0.396,0.26 2.177,0.802 2.635,1 0.458,0.198 10 false T9

NOTICE:
·

DTCs may be output when connectors are disconnected during inspection. Therefore, be sure to clear the DTCs using the GTS once the inspection has been completed.

·

Do not apply excessive force to the forward recognition camera connector.



a.

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

Terminal No. (Symbol) Terminal Description Condition Specified Condition
T9-3 (LKSW) - T9-10 (GND) Steering pad switch signal
(LTA main switch signal) 		Ignition switch off
LTA main switch off 		1 MΩ or higher
Ignition switch off
LTA main switch on 		228 to 252 Ω
T9-7 (IGB) - T9-10 (GND) Power source Ignition switch ON 11 to 14 V
Ignition switch off Below 1 V
T9-10 (GND) - Body ground Ground Always Below 1 Ω


b.

Check for pulses according to the value(s) in the table below.

HINT:

If the waveform is not similar to that shown in the illustration, a malfunction of a CAN bus line, terminating resistor, or the forward recognition camera is suspected.


Terminal No. (Symbol) Terminal Description Condition Specified Condition
T9-5 (CA1P) - T9-10 (GND) CAN communication signal Ignition switch ON Pulse generation
(See waveform 1)
T9-6 (CANH) - T9-10 (GND) CAN communication signal Ignition switch ON Pulse generation
(See waveform 1)
T9-11 (CA1N) - T9-10 (GND) CAN communication signal Ignition switch ON Pulse generation
(See waveform 2)
T9-12 (CANL) - T9-10 (GND) CAN communication signal Ignition switch ON Pulse generation
(See waveform 2)

i.
A438764N01
2.75,0.271 3.365,0.521 0.615,0.25 10 false 1 V/DIV. 1.396,1.906 2.344,2.094 0.948,0.188 10 false 10 μs./DIV. 3.031,1.406 3.344,1.698 0.313,0.292 10 false GND

Waveform 1

Item Content
Tester Connection
·

Between T9-5 (CA1P) and T9-10 (GND)

·

Between T9-6 (CANH) and T9-10 (GND)


Tool setting 1 V/DIV., 10 μs./DIV.
Condition Ignition switch ON

HINT:

The waveform varies depending on the CAN communication signal.



ii.
A438765N01
2.76,0.281 3.396,0.51 0.635,0.229 10 false 1 V/DIV. 1.406,1.875 2.375,2.073 0.969,0.198 10 false 10 μs./DIV. 3.031,1.375 3.406,1.625 0.375,0.25 10 false GND

Waveform 2

Item Content
Tester Connection
·

Between T9-11 (CA1N) and T9-10 (GND)

·

Between T9-12 (CANL) and T9-10 (GND)


Tool setting 1 V/DIV., 10 μs./DIV.
Condition Ignition switch ON

HINT:

The waveform varies depending on the CAN communication signal.