Terminals Of Ecu

WARNING: This page is about a different car, the 2007 Toyota Tacoma. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

This part of the article describes the standard CAN values for all CAN related components.

CAN JUNCTION CONNECTOR

CAN J/C connectors.

HINT:

The connectors connected to the CAN J/C can be distinguished by the colors of the bus lines and the connecting side of the connector.

J7, J8, J9 and J10 are interchangeable.

Fig 1: Identifying ECU Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Wiring color

CAN J/C CONNECTORS - WIRING COLOR REFERENCE

CAN J/C connectors ("A" side, w/earth terminal)	Color (CAN-H Side)	Color (CAN-L Side)
ECM (J10)	B	W
DLC3 (J9)	Y-B	L-W
Steering angle sensor (J8)	Y-B	L-W
Yaw rate sensor (J7)	W	R

Wiring color

CAN J/C CONNECTORS - WIRING COLOR REFERENCE

CAN J/C connectors (B side, w/o earth terminal)	Color (CAN-H Side)	Color (CAN-L Side)
Skid control ECU (J6)	B	W

The terminals of the CAN J/C connectors.

CAN J/C CONNECTOR TERMINAL REFERENCE

Terminal	Terminal symbol
1	CANH
2	CANL

Fig 2: Identifying CAN J/C Connectors Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance according to the value(s) in CONNECTOR TERMINAL RESISTANCE SPECIFICATION .

Standard Resistance

CONNECTOR TERMINAL RESISTANCE SPECIFICATION

Terminal	Specified value
CANH - CANL	108 to 132 ohms

Fig 3: Identifying Connectors Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

DLC3

Measure the resistance according to the value(s) in CONNECTOR TERMINAL SPECIFIED CONDITION .

Fig 4: Identifying DLC3 Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Standard Resistance

CONNECTOR TERMINAL SPECIFIED CONDITION

Terminals	Terminal Description	Condition	Specified Condition
D4-6 (CANH) - D4-14 (CANL)	HIGH-level CAN bus line - LOW-level CAN bus line	IG switch OFF Stop light switch OFF	54 to 69 ohms
D4-6 (CANH) - D4-16 (BAT)	HIGH-level CAN bus line - Battery positive	IG switch OFF Stop light switch OFF	1 M ohms or higher
D4-14 (CANL) - D4-16 (BAT)	LOW-level CAN bus line - Battery positive	IG switch OFF Stop light switch OFF	1 M ohms or higher
D4-6 (CANH) - D4-4 (CG)	HIGH-level CAN bus line - Ground	IG switch OFF Stop light switch OFF	3 k ohms or higher
D4-14 (CANL) - D4-4 (CG)	LOW-level CAN bus line - Ground	IG switch OFF Stop light switch OFF	3 k ohms or higher

SKID CONTROL ECU

Check the skid control ECU harness side connector (S1).

Disconnect the connector (S1) from the skid control ECU.

Measure the resistance according to the value(s) in CONNECTOR TERMINAL SPECIFIED CONDITION .

Fig 5: Identifying Skid Control ECU Connector (S1)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Standard Resistance

CONNECTOR TERMINAL SPECIFIED CONDITION

Terminals	Wiring Color	Terminal Description	Condition	Specified Condition
S1-11 (CANH) - S1-25 (CANL)	B-W - W-L	HIGH-level CAN bus line - LOW-level CAN bus line	IG switch OFF Stop light switch OFF	54 to 69 ohms
S1-11 (CANH) - S1-32 (GND2)	B-W - W-B	HIGH-level CAN bus line - Ground	IG switch OFF Stop light switch OFF	3 k ohms or higher
S1-25 (CANL) - S1-32 (GND2)	W-B - W-B	LOW-level CAN bus line - Ground	IG switch OFF Stop light switch OFF	3 k ohms or higher
S1-11 (CANH) - S1-31 (+BS)	B-W - R	HIGH-level CAN bus line - Battery positive	IG switch OFF Stop light switch OFF	1 M ohms or higher
S1-25 (CANL) - S1-31 (+BS)	W-L - R	LOW-level CAN bus line - Battery positive	IG switch OFF Stop light switch OFF	1 M ohms or higher

STEERING ANGLE SENSOR

Check the harness side connector (S9) of the steering angle sensor.

Disconnect the connector (S9) from the steering angle sensor.

Measure the resistance according to the value(s) in CONNECTOR TERMINAL SPECIFIED CONDITION .

Fig 6: Checking Harness Side Connector (S9) Of Steering Angle Sensor

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Standard Resistance

CONNECTOR TERMINAL SPECIFIED CONDITION

Terminals	Wiring Color	Terminal Description	Condition	Specified Condition
S9-3 (CANH) - S9-11 (CANL)	Y-B - L-W	HIGH-level CAN bus line - LOW-level CAN bus line	IG switch OFF Stop light switch OFF	54 to 69 ohms
S9-3 (CANH) - S9-2 (ESS)	Y-B - W-B	HIGH-level CAN bus line - Ground	IG switch OFF Stop light switch OFF	3 k ohms or higher
S9-11 (CANL) - S9-21 (ESS)	L-W - W-B	LOW-level CAN bus line - Ground	IG switch OFF Stop light switch OFF	3 k ohms or higher
S9-3 (CANH) - S9-9 (BAT)	Y-B - R	HIGH-level CAN bus line - Battery positive	IG switch OFF Stop light switch OFF	1 M ohms or higher
S9-11 (CANL) - S9-9 (BAT)	L-W - R	LOW-level CAN bus line - Battery positive	IG switch OFF Stop light switch OFF	1 M ohms or higher

YAW RATE SENSOR

Check the yaw rate sensor harness side connector (Y1).

Disconnect the connector (Y1) from the yaw rate sensor.

Measure the resistance according to the value(s) in CONNECTOR TERMINAL SPECIFIED CONDITION .

Fig 7: Identifying Yaw Rate Sensor Connector (Y1)

Standard Resistance

CONNECTOR TERMINAL SPECIFIED CONDITION

Terminals	Wiring Color	Terminal Description	Condition	Specified Condition
Y1-3 (CANH) - Y1-2 (CANL)	Y - L	HIGH-level CAN bus line - LOW-level CAN bus line	IG switch OFF Stop light switch OFF	54 to 69 ohms
Y1-3 (CANH) - Y1-1 (GND)	Y - W-B	HIGH-level CAN bus line - Ground	IG switch OFF Stop light switch OFF	3 k ohms or higher
Y1-2 (CANL) - Y1-1 (GND)	L - W-B	LOW-level CAN bus line - Ground	IG switch OFF Stop light switch OFF	3 k ohms or higher
Y1-3 (CANH) - D4-16 (BAT)	Y - Y	HIGH-level CAN bus line - Battery positive	IG switch OFF Stop light switch OFF	1 M ohms or higher
Y1-2 (CANL) - D4-16 (BAT)	L - Y	LOW-level CAN bus line - Battery positive	IG switch OFF Stop light switch OFF	1 M ohms or higher

ECM

Measure the resistance according to the value(s) in CONNECTOR TERMINAL SPECIFIED CONDITION (1 Of 2) .

Fig 8: Identifying ECM Connector Terminal

Standard resistance

CONNECTOR TERMINAL SPECIFIED CONDITION (1 Of 2)

Terminals	Condition	Specified Condition
E7-33 (CANH) - E7-34 (CANL)	IG switch OFF Stop light switch OFF	108 to 132 ohms

Measure the resistance according to the value(s) in CONNECTOR TERMINAL SPECIFIED CONDITION (2 Of 2) .

Standard resistance

Fig 9: Identifying ECM Connector Terminal Wiring Harness View

CONNECTOR TERMINAL SPECIFIED CONDITION (2 Of 2)

Terminals	Wiring Color	Condition	Specified Condition
E7-33 (CANH) - E7-34 (CANL)	B - W	IG switch OFF Stop light switch OFF	108 to 132 ohms
E7-33 (CANH) - E4-7 (E01)	B - W-B	IG switch OFF Stop light switch OFF	3 k ohms or more
E7-34 (CANL) - E4-7 (E01)	W - W-B	IG switch OFF Stop light switch OFF	3 k ohms or more
E7-33 (CANH) - E8-3 (BATT)	B - L	IG switch OFF Stop light switch OFF	1 M ohms or more
E7-34 (CANL) - E8-3 (BATT)	W - L	IG switch OFF Stop light switch OFF	1 M ohms or more