Toyota Tundra Service Manual: Terminals Of Ecu

TERMINALS OF ECU

FORWARD RECOGNITION CAMERA

NOTICE:

DTCs may be output when connectors are disconnected during inspection. Therefore, be sure to clear the DTCs using the Techstream once the inspection has been completed.
Do not apply excessive force to the W9 forward recognition camera connector.

(a) Check forward recognition camera

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
W9-7 (IGB) - Body ground	R - Body ground	Power source	Ignition switch ON	11 to 14 V
W9-7 (IGB) - Body ground	R - Body ground	Power source	Ignition switch off	Below 1 V
W9-10 (GND) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
W9-5 (CA1P) - Body ground	BE - Body ground	CAN communication signal	Ignition switch ON	Pulse generation (Waveform 1)
W9-11 (CA1N) - Body ground	W - Body ground			Pulse generation (Waveform 2)
W9-6 (CANH) - Body ground	G - Body ground			Pulse generation (Waveform 1)
W9-12 (CANL) - Body ground	W - Body ground			Pulse generation (Waveform 2)

(b) WAVEFORM 1

(1) CAN communication signal

Item

Content

Terminal Name

Between W9-5 (CA1P) and W9-10 (GND)

Between W9-6 (CANH) and W9-10 (GND)

Tester Range

1 V/DIV., 10 μsec./DIV.

Condition

Ignition switch ON

HINT:

The waveform varies depending on the CAN communication signal.

(1) CAN communication signal

Item

Content

Terminal Name

Between W9-11 (CA1N) and W9-10 (GND)

Between W9-12 (CANL) and W9-10 (GND)

Tester Range

1 V/DIV., 10 μsec./DIV.

Condition

Ignition switch ON

HINT:

The waveform varies depending on the CAN communication signal.

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