Can Communication System Terminals Of Ecu

Power Source Network. Corolla. Zre142 Aze141
Networking. Corolla. Zre142 Aze141

  1. JUNCTION CONNECTOR FOR CAN NO. 1 BUS

  1. JUNCTION CONNECTOR FOR CAN MS BUS

  1. DLC3

  1. SKID CONTROL ECU WITH ACTUATOR (w/ VSC)

  1. SKID CONTROL ECU WITH ACTUATOR (w/o VSC)

  1. STEERING ANGLE SENSOR

  1. YAW RATE SENSOR

  1. CENTER AIRBAG SENSOR

  1. ECM (for 2AZ-FE)

  1. ECM (for 2ZR-FE)

  1. AIR CONDITIONING AMPLIFIER (for Automatic Air Conditioning System)

  1. AIR CONDITIONING AMPLIFIER (for Manual Air Conditioning System, 2ZR-FE)

  1. AIR CONDITIONING AMPLIFIER (for Manual Air Conditioning System, 2AZ-FE)

  1. COMBINATION METER (TMC made)

  1. COMBINATION METER (except TMC made)

  1. CERTIFICATION ECU (w/ Smart Key System)

  1. MAIN BODY ECU (w/ Smart Key System)

  1. MAIN BODY ECU (w/o Smart Key System)

  1. POWER STEERING ECU

  1. ACCESSORY GATEWAY

Can Communication System -- Terminals Of Ecu


NOTICE:
  1. Turn the ignition switch off before measuring the resistance of the CAN bus main wires and CAN bus branch wires.
  2. After the ignition switch is turned off, check that the key reminder warning system and light reminder warning system are not in operation.
  3. Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the ignition switch, any other switches or the doors. If any doors need to be opened in order to check the connectors, open the doors and leave them open.
HINT:
Operating the ignition switch, any other switches or a door triggers related ECU and sensor communication on the CAN.
This communication will cause the resistance value to change.
NOTICE:
This section describes the standard CAN values for all CAN related components.

JUNCTION CONNECTOR FOR CAN NO. 1 BUS


  1. CAN No. 1 junction connector (TMC made)


    Corolla. Zre142 Aze141.Networking.Lin Communication System.Can Communication System Terminals Of Ecu


    Text in Illustration
    *a
    		Front view of wire harness connector
    (to CAN No. 1 Junction Connector)
    		-
    		-

    No. 1 Junction Connector
    		Wiring Color
    		Connect to
    E58-2 (CANH)
    		G
    		Combination meter
    E58-13 (CANL)
    		W
    		Combination meter
    E58-3 (CANH)
    		SB
    		Power steering ECU
    E58-14 (CANL)
    		W
    		Power steering ECU
    E58-4 (CANH)
    		V
    		Air conditioning amplifier
    E58-15 (CANL)
    		W
    		Air conditioning amplifier
    E58-5 (CANH)
    		BR
    		Steering angle sensor
    E58-16 (CANL)
    		W
    		Steering angle sensor
    E58-6 (CANH)
    		L
    		Yaw rate sensor
    E58-17 (CANL)
    		W
    		Yaw rate sensor
    E58-7 (CANH)
    		LG
    		DLC3
    E58-18 (CANL)
    		W
    		DLC3
    E58-8 (CANH)
    		R
    		Main body ECU
    E58-19 (CANL)
    		W
    		Main body ECU
    E58-9 (CANH)
    		Y
    		Center airbag sensor assembly
    E58-20 (CANL)
    		W
    		Center airbag sensor assembly
    E58-10 (CANH)
    		B
    		CAN No. 2 junction connector
    E58-21 (CANL)
    		W
    		CAN No. 2 junction connector
    E58-11 (CANH)
    		GR
    		Accessory gateway
    E58-22 (CANL)
    		W
    		Accessory gateway


  2. CAN No. 1 junction connector (Except TMC made)


    Corolla. Zre142 Aze141.Networking.Lin Communication System.Can Communication System Terminals Of Ecu


    Text in Illustration
    *a
    		Front view of wire harness connector
    (to CAN No. 1 Junction Connector)
    		-
    		-

    No. 1 Junction Connector
    		Wiring Color
    		Connect to
    E71-1 (CANH)
    		R
    		Main body ECU
    E71-12 (CANL)
    		W
    		Main body ECU
    E71-2 (CANH)
    		LG
    		DLC3
    E71-13 (CANL)
    		W
    		DLC3
    E71-3 (CANH)
    		SB
    		Power steering ECU
    E71-14 (CANL)
    		W
    		Power steering ECU
    E71-4 (CANH)
    		G
    		Combination meter
    E71-15 (CANL)
    		W
    		Combination meter
    E71-5 (CANH)
    		Y
    		Center airbag sensor assembly
    E71-16 (CANL)
    		W
    		Center airbag sensor assembly
    E71-6 (CANH)
    		B
    		CAN No. 2 junction connector
    E71-17 (CANL)
    		W
    		CAN No. 2 junction connector
    E71-7 (CANH)
    		V
    		Air conditioning amplifier
    E71-18 (CANL)
    		W
    		Air conditioning amplifier
    E71-8 (CANH)
    		BR
    		Steering angle sensor
    E71-19 (CANL)
    		W
    		Steering angle sensor
    E71-9 (CANH)
    		L
    		Yaw rate sensor
    E71-20 (CANL)
    		W
    		Yaw rate sensor
    E71-11 (CANH)
    		GR
    		Accessory gateway
    E71-22 (CANL)
    		W
    		Accessory gateway


  3. CAN No. 2 junction connector


    Corolla. Zre142 Aze141.Networking.Lin Communication System.Can Communication System Terminals Of Ecu


    Text in Illustration
    *a
    		Front view of wire harness connector
    (to CAN No. 2 Junction Connector)
    		-
    		-

    No. 2 Junction Connector
    		Wiring Color
    		Connect to
    A48-1 (CANH)
    		R
    		Skid control ECU
    A48-3 (CANL)
    		W
    		Skid control ECU
    A48-2 (CANH)
    		Y
    		ECM
    A48-4 (CANL)
    		W
    		ECM
    A49-6 (CANH)
    		B
    		CAN No. 1 junction connector
    A49-4 (CANL)
    		W
    		CAN No. 1 junction connector


  4. The connection diagram of the components which are connected to the CAN junction connector


    Corolla. Zre142 Aze141.Networking.Lin Communication System.Can Communication System Terminals Of Ecu


JUNCTION CONNECTOR FOR CAN MS BUS


  1. CAN No. 3 junction connector


    Corolla. Zre142 Aze141.Networking.Lin Communication System.Can Communication System Terminals Of Ecu


    Text in Illustration
    *a
    		Front view of wire harness connector
    (to CAN No. 3 Junction Connector)
    		-
    		-

    No. 3 Junction Connector
    		Wiring Color
    		Connect to
    E72-1 (CANH)
    		SB
    		Certification ECU
    E72-6 (CANL)
    		W
    		Certification ECU
    E72-2 (CANH)
    		G
    		Combination meter
    E72-7 (CANL)
    		W
    		Combination meter
    E72-3 (CANH)
    		R
    		Main body ECU
    E72-8 (CANL)
    		W
    		Main body ECU


  2. The connection diagram of the components which are connected to the CAN junction connector.


    Corolla. Zre142 Aze141.Networking.Lin Communication System.Can Communication System Terminals Of Ecu


DLC3


    Corolla. Zre142 Aze141.Networking.Lin Communication System.Can Communication System Terminals Of Ecu

  1. Measure the resistance according to the value(s) in the table below.

    Text in Illustration
    *1
    		DLC3

    Standard Resistance:

    Terminal No. (Symbol)
    		Wiring Color
    		Condition
    		Specified Condition
    E11-6 (CANH) - E11-14 (CANL)
    		LG - W
    		Ignition switch off
    		54 to 69 Ω
    E11-6 (CANH) - E11-4 (CG)
    		LG - W-B
    		Ignition switch off
    		200 Ω or higher
    E11-14 (CANL) - E11-4 (CG)
    		W - W-B
    		Ignition switch off
    		200 Ω or higher
    E11-6 (CANH) - E11-16 (BAT)
    		LG - G*1
    LG - LG*2
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    E11-14 (CANL) - E11-16 (BAT)
    		W - G*1
    W - LG*2
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    1. *1: TMC made
    2. *2: except TMC made

SKID CONTROL ECU WITH ACTUATOR (w/ VSC)


    Corolla. Zre142 Aze141.Networking.Lin Communication System.Can Communication System Terminals Of Ecu

  1. Disconnect the connector from the skid control ECU.

    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Skid Control ECU with Actuator)
    *b
    		TMC Made
    *c
    		Except TMC Made

  2. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:

    Terminal No. (Symbol)
    		Wiring Color
    		Condition
    		Specified Condition
    A66-25 (CANH) - A66-14 (CANL)
    		R - W
    		Ignition switch off
    		54 to 69 Ω
    A66-25 (CANH) - A66-1 (GND1)
    		R - W-B
    		Ignition switch off
    		200 Ω or higher
    A66-14 (CANL) - A66-1 (GND1)
    		W - W-B
    		Ignition switch off
    		200 Ω or higher
    A66-25 (CANH) - A66-24 (BM)*1
    A66-25 (CANH) - A66-24 (+BM)*2
    		R - L
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    A66-14 (CANL) - A66-24 (BM)*1
    A66-14 (CANL) - A66-24 (+BM)*2
    		W - L
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    1. *1: TMC made
    2. *2: except TMC made

SKID CONTROL ECU WITH ACTUATOR (w/o VSC)


    Corolla. Zre142 Aze141.Networking.Lin Communication System.Can Communication System Terminals Of Ecu

  1. Disconnect the connector from the skid control ECU.

    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Skid Control ECU with Actuator)

  2. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:

    Terminal No. (Symbol)
    		Wiring Color
    		Condition
    		Specified Condition
    A51-25 (CANH) - A51-14 (CANL)
    		R - W
    		Ignition switch off
    		54 to 69 Ω
    A51-25 (CANH) - A51-1 (GND1)
    		R - W-B
    		Ignition switch off
    		200 Ω or higher
    A51-14 (CANL) - A51-1 (GND1)
    		W - W-B
    		Ignition switch off
    		200 Ω or higher
    A51-25 (CANH) - A51-24 (+BM)
    		R - L
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    A51-14 (CANL) - A51-24 (+BM)
    		W - L
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher

STEERING ANGLE SENSOR


    Corolla. Zre142 Aze141.Networking.Lin Communication System.Can Communication System Terminals Of Ecu

  1. Disconnect the connector from the steering angle sensor.

    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Steering Angle Sensor)

  2. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:

    Terminal No. (Symbol)
    		Wiring Color
    		Condition
    		Specified Condition
    E49-3 (CANH) - E49-2 (CANL)
    		BR - W
    		Ignition switch off
    		54 to 69 Ω
    E49-3 (CANH) - E49-1 (ESS)
    		BR - W-B
    		Ignition switch off
    		200 Ω or higher
    E49-2 (CANL) - E49-1 (ESS)
    		W - W-B
    		Ignition switch off
    		200 Ω or higher
    E49-3 (CANH) - E49-5 (BAT)
    		BR - W*1
    BR - R*2
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    E49-2 (CANL) - E49-5 (BAT)
    		W - W*1
    W - R*2
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    1. *1: TMC made
    2. *2: except TMC made

YAW RATE SENSOR


    Corolla. Zre142 Aze141.Networking.Lin Communication System.Can Communication System Terminals Of Ecu

  1. Disconnect the connector from the yaw rate sensor.

    Text in Illustration
    *1
    		DLC3
    *a
    		Front view of wire harness connector
    (to Yaw Rate Sensor)

  2. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:

    Terminal No. (Symbol)
    		Wiring Color
    		Condition
    		Specified Condition
    E97-3 (CANH) - E97-2 (CANL)
    		L - W
    		Ignition switch off
    		54 to 69 Ω
    E97-3 (CANH) - E97-1 (GND)
    		L - W-B
    		Ignition switch off
    		200 Ω or higher
    E97-2 (CANL) - E97-1 (GND)
    		W - W-B
    		Ignition switch off
    		200 Ω or higher
    E97-3 (CANH) - E11-16 (BAT)
    		L - G*1
    L - LG*2
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    E97-2 (CANL) - E11-16 (BAT)
    		W - G*1
    W - LG*2
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    1. *1: TMC made
    2. *2: except TMC made

CENTER AIRBAG SENSOR


    Corolla. Zre142 Aze141.Networking.Lin Communication System.Can Communication System Terminals Of Ecu

  1. Disconnect the connector from the center airbag sensor.

    Text in Illustration
    *1
    		DLC3
    *a
    		Front view of wire harness connector
    (to Center Airbag Sensor)

  2. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:

    Terminal No. (Symbol)
    		Wiring Color
    		Condition
    		Specified Condition
    E14-13 (CANH) - E14-22 (CANL)
    		Y - W
    		Ignition switch off
    		54 to 69 Ω
    E14-13 (CANH) - E14-25 (E1)
    		Y - W-B
    		Ignition switch off
    		200 Ω or higher
    E14-22 (CANL) - E14-25 (E1)
    		W - W-B
    		Ignition switch off
    		200 Ω or higher
    E14-13 (CANH) - E11-16 (BAT)
    		Y - G*1
    Y - LG*2
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    E14-22 (CANL) - E11-16 (BAT)
    		W - G*1
    W - LG*2
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    1. *1: TMC made
    2. *2: except TMC made

ECM (for 2AZ-FE)


    Corolla. Zre142 Aze141.Networking.Lin Communication System.Can Communication System Terminals Of Ecu

  1. Disconnect the connector from the ECM.

    Text in Illustration
    *a
    		Front view of wire harness connector
    (to ECM)

  2. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:

    Terminal No. (Symbol)
    		Wiring Color
    		Condition
    		Specified Condition
    A50-41 (CANH) - A50-49 (CANL)
    		Y - W
    		Ignition switch off
    		108 to 132 Ω
    A50-41 (CANH) - B31-104 (E1)
    		Y - BR
    		Ignition switch off
    		200 Ω or higher
    A50-49 (CANL) - B31-104 (E1)
    		W - BR
    		Ignition switch off
    		200 Ω or higher
    A50-41 (CANH) - A50-20 (BATT)
    		Y - P
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    A50-49 (CANL) - A50-20 (BATT)
    		W - P
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher

ECM (for 2ZR-FE)


    Corolla. Zre142 Aze141.Networking.Lin Communication System.Can Communication System Terminals Of Ecu

  1. Disconnect the connector from the ECM.

    Text in Illustration
    *a
    		Front view of wire harness connector
    (to ECM)

  2. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:

    Terminal No. (Symbol)
    		Wiring Color
    		Condition
    		Specified Condition
    A50-8 (CANH) - A50-9 (CANL)
    		Y - W
    		Ignition switch off
    		108 to 132 Ω
    A50-8 (CANH) - B31-105 (E1)
    		Y - BR
    		Ignition switch off
    		200 Ω or higher
    A50-9 (CANL) - B31-105 (E1)
    		W - BR
    		Ignition switch off
    		200 Ω or higher
    A50-8 (CANH) - A50-20 (BATT)
    		Y - P
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    A50-9 (CANL) - A50-20 (BATT)
    		W - P
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher

AIR CONDITIONING AMPLIFIER (for Automatic Air Conditioning System)


    Corolla. Zre142 Aze141.Networking.Lin Communication System.Can Communication System Terminals Of Ecu

  1. Disconnect the air conditioning amplifier connector.

    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Air Conditioning Amplifier)

  2. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:

    Terminal No. (Symbol)
    		Wiring Color
    		Condition
    		Specified Condition
    E30-11 (CANH) - E30-12 (CANL)
    		V - W
    		Ignition switch off
    		54 to 69 Ω
    E30-11 (CANH) - E30-14 (GND)
    		V - W-B
    		Ignition switch off
    		200 Ω or higher
    E30-12 (CANL) - E30-14 (GND)
    		W - W-B
    		Ignition switch off
    		200 Ω or higher
    E30-11 (CANH) - E30-21 (B)
    		V - W*1
    V - BR*2
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    E30-12 (CANL) - E30-21 (B)
    		W - W*1
    W - BR*2
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    1. *1: TMC made
    2. *2: except TMC made

AIR CONDITIONING AMPLIFIER (for Manual Air Conditioning System, 2ZR-FE)


    Corolla. Zre142 Aze141.Networking.Lin Communication System.Can Communication System Terminals Of Ecu

  1. Disconnect the air conditioning amplifier connector.

    Text in Illustration
    *1
    		DLC3
    *a
    		Front view of wire harness connector
    (to Air Conditioning Amplifier)

  2. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:

    Terminal No. (Symbol)
    		Wiring Color
    		Condition
    		Specified Condition
    E111-8 (CANH) - E111-9 (CANL)
    		V - W
    		Ignition switch off
    		54 to 69 Ω
    E111-8 (CANH) - E111-24 (GND)
    		V - W-B
    		Ignition switch off
    		200 Ω or higher
    E111-9 (CANL) - E111-24 (GND)
    		W - W-B
    		Ignition switch off
    		200 Ω or higher
    E111-8 (CANH) - E11-16 (BAT)
    		V - G*1
    V - LG*2
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    E111-9 (CANL) - E11-16 (BAT)
    		W - G*1
    W - LG*2
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    1. *1: TMC made
    2. *2: except TMC made

AIR CONDITIONING AMPLIFIER (for Manual Air Conditioning System, 2AZ-FE)


    Corolla. Zre142 Aze141.Networking.Lin Communication System.Can Communication System Terminals Of Ecu

  1. Disconnect the air conditioning amplifier connector.

    Text in Illustration
    *1
    		DLC3
    *a
    		Front view of wire harness connector
    (to Air Conditioning Amplifier)

  2. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:

    Terminal No. (Symbol)
    		Wiring Color
    		Condition
    		Specified Condition
    E62-2 (CANH) - E62-3 (CANL)
    		V - W
    		Ignition switch off
    		54 to 69 Ω
    E62-2 (CANH) - E62-12 (GND)
    		V - W-B
    		Ignition switch off
    		200 Ω or higher
    E62-3 (CANL) - E62-12 (GND)
    		W - W-B
    		Ignition switch off
    		200 Ω or higher
    E62-2 (CANH) - E11-16 (BAT)
    		V - LG
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    E62-3 (CANL) - E11-16 (BAT)
    		W - LG
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher

COMBINATION METER (TMC made)


    Corolla. Zre142 Aze141.Networking.Lin Communication System.Can Communication System Terminals Of Ecu

  1. Disconnect the connector from the combination meter.

    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Combination Meter)

  2. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:

    Terminal No. (Symbol)
    		Wiring Color
    		Condition
    		Specified Condition
    E46-27 (CANH) - E46-28 (CANL)
    		G - W
    		Ignition switch off
    		108 to 132 Ω
    E46-27 (CANH) - E46-30 (ET)
    		G - BR
    		Ignition switch off
    		200 Ω or higher
    E46-28 (CANL) - E46-30 (ET)
    		W - BR
    		Ignition switch off
    		200 Ω or higher
    E46-27 (CANH) - E46-32 (B)
    		G - W
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    E46-28 (CANL) - E46-32 (B)
    		W - W
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher

COMBINATION METER (except TMC made)


    Corolla. Zre142 Aze141.Networking.Lin Communication System.Can Communication System Terminals Of Ecu

  1. Disconnect the connector from the combination meter.

    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Combination Meter)

  2. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:

    Terminal No. (Symbol)
    		Wiring Color
    		Condition
    		Specified Condition
    E46-27 (CANH) - E46-28 (CANL)
    		G - W
    		Ignition switch off
    		108 to 132 Ω
    E46-27 (CANH) - E46-30 (ET)
    		G - W-B
    		Ignition switch off
    		200 Ω or higher
    E46-28 (CANL) - E46-30 (ET)
    		W - W-B
    		Ignition switch off
    		200 Ω or higher
    E46-27 (CANH) - E46-32 (B)
    		G - R
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    E46-28 (CANL) - E46-32 (B)
    		W - R
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    E46-14 (TX1-) - E46-13 (TX-)*1
    		G - W
    		Ignition switch off
    		108 to 132 Ω
    E46-14 (TX1-) - E46-30 (ET)*1
    		G - W-B
    		Ignition switch off
    		200 Ω or higher
    E46-13 (TX-) - E46-30 (ET)*1
    		W - W-B
    		Ignition switch off
    		200 Ω or higher
    E46-14 (TX1-) - E46-32 (B)*1
    		G - R
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    E46-13 (TX-) - E46-32 (B)*1
    		W - R
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    1. *1: w/ Smart key system

CERTIFICATION ECU (w/ Smart Key System)


    Corolla. Zre142 Aze141.Networking.Lin Communication System.Can Communication System Terminals Of Ecu

  1. Disconnect the connector from the certification ECU.

    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Certification ECU)

  2. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:

    Terminal No. (Symbol)
    		Wiring Color
    		Condition
    		Specified Condition
    E36-27 (CANH) - E36-28 (CANL)
    		SB - W
    		Ignition switch off
    		54 to 69 Ω
    E36-27 (CANH) - E36-17 (E)
    		SB - W-B
    		Ignition switch off
    		200 Ω or higher
    E36-28 (CANL) - E36-17 (E)
    		W - W-B
    		Ignition switch off
    		200 Ω or higher
    E36-27 (CANH) - E36-1 (+B)
    		SB - GR
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    E36-28 (CANL) - E36-1 (+B)
    		W - GR
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher

MAIN BODY ECU (w/ Smart Key System)

  1. Disconnect the connector from the main body ECU.



  2. Measure the resistance according to the value(s) in the table below.


    Corolla. Zre142 Aze141.Networking.Lin Communication System.Can Communication System Terminals Of Ecu


    Text in Illustration
    *1
    		DLC3
    		-
    		-
    *a
    		Front view of wire harness connector
    (to Main Body ECU)
    		-
    		-

    Standard Resistance:

    Terminal No. (Symbol)
    		Wiring Color
    		Condition
    		Specified Condition
    E52-15 (CANH) - E52-16 (CANL)
    		R - W
    		Ignition switch off
    		54 to 69 Ω
    E52-15 (CANH) - E11-4 (CG)
    		R - W-B
    		Ignition switch off
    		200 Ω or higher
    E52-16 (CANL) - E11-4 (CG)
    		W - W-B
    		Ignition switch off
    		200 Ω or higher
    E52-15 (CANH) - E11-16 (BAT)
    		R - LG
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    E52-16 (CANL) - E11-16 (BAT)
    		W - LG
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    E51-11 (CANP) - E51-12 (CANN)
    		R - W
    		Ignition switch off
    		108 to 132 Ω
    E51-11 (CANP) - E11-4 (CG)
    		R - W-B
    		Ignition switch off
    		200 Ω or higher
    E51-12 (CANN) - E11-4 (CG)
    		W - W-B
    		Ignition switch off
    		200 Ω or higher
    E51-11 (CANP) - E11-16 (BAT)
    		R - LG
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    E51-12 (CANN) - E11-16 (BAT)
    		W - LG
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher

MAIN BODY ECU (w/o Smart Key System)


    Corolla. Zre142 Aze141.Networking.Lin Communication System.Can Communication System Terminals Of Ecu

  1. Disconnect the connector from the main body ECU.

    Text in Illustration
    *1
    		DLC3
    *a
    		Front view of wire harness connector
    (to Main Body ECU)

  2. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:

    Terminal No. (Symbol)
    		Wiring Color
    		Condition
    		Specified Condition
    E61-23 (CANH) - E61-22 (CANL)
    		R - W
    		Ignition switch off
    		54 to 69 Ω
    E61-23 (CANH) - E11-4 (CG)
    		R - W-B
    		Ignition switch off
    		200 Ω or higher
    E61-22 (CANL) - E11-4 (CG)
    		W - W-B
    		Ignition switch off
    		200 Ω or higher
    E61-23 (CANH) - E11-16 (BAT)
    		R - G*1
    R - LG*2
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    E61-22 (CANL) - E11-16 (BAT)
    		W - G*1
    W - LG*2
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    1. *1: TMC made
    2. *2: except TMC made

POWER STEERING ECU


    Corolla. Zre142 Aze141.Networking.Lin Communication System.Can Communication System Terminals Of Ecu

  1. Disconnect the power steering ECU connectors.

    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Power Steering ECU)

  2. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:

    Terminal No. (Symbol)
    		Wiring Color
    		Condition
    		Specified Condition
    E32-1 (CANH) - E32-7 (CANL)
    		SB - W
    		Ignition switch off
    		54 to 69 Ω
    E32-1 (CANH) - A75-2 (PGND)
    		SB - W-B
    		Ignition switch off
    		200 Ω or higher
    E32-7 (CANL) - A75-2 (PGND)
    		W - W-B
    		Ignition switch off
    		200 Ω or higher
    E32-1 (CANH) - A75-1 (PIG)
    		SB - L
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    E32-7 (CANL) - A75-1 (PIG)
    		W - L
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher

ACCESSORY GATEWAY


    Corolla. Zre142 Aze141.Networking.Lin Communication System.Can Communication System Terminals Of Ecu

  1. Disconnect the accessory gateway connector from the accessory.

    Text in Illustration
    *1
    		DLC3
    *a
    		Rear view of wire harness connector
    (to Accessory Gateway)

  2. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:

    Terminal No. (Symbol)
    		Wiring Color
    		Condition
    		Specified Condition
    E92-1 (CAN+) - E92-2 (CAN-)
    		GR - W
    		Ignition switch off
    		54 to 69 Ω
    E92-1 (CAN+) - E11-4 (CG)
    		GR - W-B
    		Ignition switch off
    		200 Ω or higher
    E92-2 (CAN-) - E11-4 (CG)
    		W - W-B
    		Ignition switch off
    		200 Ω or higher
    E92-1 (CAN+) - E11-16 (BAT)
    		GR - G*1
    GR - LG*2
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    E92-2 (CAN-) - E11-16 (BAT)
    		W - G*1
    W - LG*2
    		Cable is disconnected from negative (-) battery terminal
    		6 kΩ or higher
    *1: TMC made
    *2: except TMC made