Toyota Tacoma manuals

Toyota Tacoma (2015-2018) Service Manual: Terminals Of Ecu

TERMINALS OF ECU

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 f5 forward recognition camera connector.

CHECK FORWARD RECOGNITION CAMERA

(a) Disconnect the forward recognition camera connector.

*a

Front view of wire harness connector

(to Forward Recognition Camera)

-

-

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

F46-7 (IGB) - F46-10 (GND)

BE - W-B

Power source

Ignition switch ON

11 to 14 V

Ignition switch off

Below 1 V

F46-10 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

(c) Reconnect the forward recognition camera connector.

*a

Component with harness connected

(Forward Recognition Camera)

-

-

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

F46-1 (HTR) - F46-10 (GND)

R - W-B

Camera heater (forward recognition hood) operation signal

Ignition switch ON, camera heater (forward recognition hood) not operating

11 to 14 V

Ignition switch ON, camera heater (forward recognition hood) operating

0 to 1.5 V

F46-8 (BZ) - F46-10 (GND)

L - W-B

Skid control buzzer

Ignition switch ON, skid control buzzer not operating

11 to 14 V

Ignition switch ON, skid control buzzer operating

0 to 1.5 V

(e) 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)

Wiring Color

Terminal Description

Condition

Specified Condition

F46-5 (CA1P) - F46-10 (GND)

L - W-B

CAN communication signal

Ignition switch ON

Pulse generation

(See waveform 1)

F46-11 (CA1N) - F46-10 (GND)

W - W-B

CAN communication signal

Ignition switch ON

Pulse generation

(See waveform 2)

F46-6 (CANH) - F46-10 (GND)

B - W-B

CAN communication signal

Ignition switch ON

Pulse generation

(See waveform 1)

F46-12 (CANL) - F46-10 (GND)

W - W-B

CAN communication signal

Ignition switch ON

Pulse generation

(See waveform 2)

(1) Waveform 1

Item

Content

Terminal Name

Between F46-5 (CA1P) and F46-10 (GND)

Between F46-6 (CANH) and F46-10 (GND)

Tester Range

1 V/DIV., 10 μsec./DIV.

Condition

Ignition switch ON

HINT:

The waveform varies depending on the CAN communication signal.

(2) Waveform 2

(2) Waveform 2

Item

Content

Terminal Name

Between F46-11 (CA1N) and F46-10 (GND)

Between F46-12 (CANL) and F46-10 (GND)

Tester Range

1 V/DIV., 10 μsec./DIV.

Condition

Ignition switch ON

HINT:

The waveform varies depending on the CAN communication signal.

Fail-safe Chart
Dtc Check / Clear
DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON. (c) Turn the Techstream on. (d) Enter the following menus: Chassis / Front Recognition Came ...

Fail-safe Chart
FAIL-SAFE CHART FAIL-SAFE FUNCTION (a) If a malfunction is detected in the forward recognition camera system, the systems that use the forward recognition camera perform the fail-safe function. ...

Other materials:

Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each sy ...

Manual Transmission Oil
Components COMPONENTS ILLUSTRATION On-vehicle Inspection ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT MANUAL TRANSMISSION OIL (a) Park the vehicle on a level surface. (b) Remove the transmission filler plug and gasket. (c) Check that the oil level is between 0 to 5 mm (0 to 0 ...

Body
General Maintenance GENERAL MAINTENANCE PROCEDURE 1. TIGHTEN BOLTS AND NUTS ON CHASSIS AND BODY (a) Tighten the bolts and nuts on the chassis parts listed below, if necessary. Front axle and suspension Drive train Rear axle and suspension Brake system Engine mounting ...

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