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

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.

(c) WAVEFORM 2

(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.

    System Diagram

    Lost Communication with Yaw Rate Sensor Module (U0123,U0126,U0129,U0142,U0155)

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