Terminals Of Ecu

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

NOTE: This section describes the standard CAN values for all CAN related components.

JUNCTION CONNECTOR

Fig 1: Terminals Of ECU (Junction Connector)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Wiring color

JUNCTION CONNECTOR

Junction Connector B side	Color (CAN-H Side)	Color (CAN-L Side)
ECM (J29)	B	W
Gateway ECU (J30)	B	W
Translate ECU (J31)	R	W
DLC3 (J32)	L	W

HINT:

The connectors connected to the junction connector can be distinguished by the colors of the bus lines and the connecting side of the connector.
The connectors can be connected to any terminals on the same side.

TERMINALS OF CONNECTORS FOR JUNCTION CONNECTOR

Fig 2: Identifying Junction Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

JUNCTION CONNECTOR REFERENCE TABLE

Terminal	Terminal Symbol
1	CANH
2	CANL

CHECK DLC3

Measure the resistance of the connector.

Fig 3: Checking DLC3

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

DLC3

Symbols (Terminal No.)	Wiring Color	Condition	Specified Condition
CANH (D7-6) - CANL (D7-14)	L - W	Ignition switch OFF	54 to 67 Ω
CANH (D7-6) - CG (D7-4)	L - W-B	Ignition switch OFF	3 kΩ or higher
CANL (D7-14) - CG (D7-4)	W - W-B	Ignition switch OFF	3 kΩ or higher
CANH (D7-6) - BAT (D7-16)	L - B-W	Ignition switch OFF	1 MΩ or higher
CANL (D7-14) - BAT (D7-16)	W - B-W	Ignition switch OFF	1 MΩ or higher

CHECK ECM

Fig 4: Checking ECM

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance of the connector.

ECM (1 OF 2)

Symbols (Terminal No.)	Wiring Color	Condition	Specified Condition
CANH (E8-33) - CANL (E8-34)	B - W	Ignition switch OFF	54 to 67 Ω

Disconnect the E5, E8 and E9 ECM connectors.

Measure the resistance of the wire harness side connectors.

ECM (2 OF 2)

Symbols (Terminal No.)	Wiring Color	Condition	Specified Condition
CANH (E8-33) - CANL (E8-34)	B - W	Ignition switch OFF	108 to 132 Ω
CANH (E8-33) - E01 (E5-7)	B - W-B	Ignition switch OFF	3 kΩ or higher
CANL (E8-34) - E01 (E5-7)	W - W-B	Ignition switch OFF	3 kΩ or higher
CANH (E8-33) - BATT (E9-3)	B - B-R	Ignition switch OFF	1 MΩ or higher
CANL (E8-34) - BATT (E9-3)	W - B-R	Ignition switch OFF	1 MΩ or higher

CHECK GATEWAY ECU

Fig 5: Checking Gateway ECU

Measure the resistance of the connector.

GATEWAY ECU (1 OF 2)

Symbols (Terminal No.)	Wiring Color	Condition	Specified Condition
CA1H (G4-17) - CA1L (G4-18)	B - W	Ignition switch OFF	54 to 67 Ω

Disconnect the G4 ECU connector.

Measure the resistance of the wire harness side connector.

GATEWAY ECU (2 OF 2)

Symbols (Terminal No.)	Wiring Color	Condition	Specified Condition
CA1H (G4-17) - CA1L (G4-18)	B - W	Ignition switch OFF	108 to 132 Ω
CA1H (G4-17) - GND (G4-24)	B - W-B	Ignition switch OFF	3 kΩ or higher
CA1L (G4-18) - GND (G4-24)	W - W-B	Ignition switch OFF	3 kΩ or higher
CA1H (G4-17) - BATT (G4-10)	B - L-W	Ignition switch OFF	1 MΩ or higher
CA1L (G4-18) - BATT (G4-10)	W - L-W	Ignition switch OFF	1 MΩ or higher

CHECK TRANSLATE ECU

Fig 6: Checking Translate ECU

Disconnect the T29 ECU connector.

Measure the resistance of the wire harness side connectors.

TRANSLATE ECU

Symbols (Terminal No.)	Wiring Color	Condition	Specified Condition
CANH (T29-7) - CANL (T29-10)	R - W	Ignition switch OFF	54 to 67 Ω
CANH (T29-7) - GND (T29-40)	R - W-B	Ignition switch OFF	3 kΩ or higher
CANL (T29-10) - GND (T29-40)	W - W-B	Ignition switch OFF	3 kΩ or higher
CANH (T29-7) - BAT (D7-16)	R - B-W	Ignition switch OFF	1 MΩ or higher
CANL (T29-10) - BAT (D7-16)	W - B-W	Ignition switch OFF	1 MΩ or higher