Toyota Tacoma 2015-2018 Service Manual: Terminals Of Ecu

Toyota Tacoma 2015-2018 Service Manual / Cruise Control / Forward Recognition Camera System / 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.

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
F46-7 (IGB) - F46-10 (GND)	BE - W-B	Power source	Ignition switch off	Below 1 V
F46-10 (GND) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω

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
F46-1 (HTR) - F46-10 (GND)	R - W-B	Camera heater (forward recognition hood) operation signal	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
F46-8 (BZ) - F46-10 (GND)	L - W-B	Skid control buzzer	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

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

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

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.

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:

Removal
REMOVAL PROCEDURE 1. REMOVE FRONT CONSOLE BOX (See page ) 2. DISCONNECT TRANSMISSION CONTROL CABLE ASSEMBLY 3. REMOVE TRANSMISSION CONTROL CABLE ASSEMBLY (a) Remove the nut and clip and disconnect the transmission control cable assembly from the automatic transmission assem ...

Disassembly
DISASSEMBLY PROCEDURE 1. REMOVE HOOD BULGE ASSEMBLY (w/ Hood Bulge) (a) Remove the 4 nuts. (b) Disengage the clip from back side of the hood panel to remove the hood bulge assembly together with the air intake guide. 2. REMOVE NO. 2 HOOD BU ...

System Diagram
SYSTEM DIAGRAM Transmitting ECU (Transmitter) Receiving ECU Signal Communication Method Airbag Sensor Assembly ECM Crash detection signal CAN Airbag Sensor Assembly Com ...