Can Communication System Can Main Wire For Disconnection (Lhd Models)

Communication System. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
Can Communication. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK DLC3

CHECK CAN MAIN WIRE FOR DISCONNECTION (NO. 2 JUNCTION CONNECTOR - ECM)

CHECK CAN MAIN WIRE FOR DISCONNECTION (NO. 2 JUNCTION CONNECTOR - COMBINATION METER ECU)

CONNECT CONNECTOR

CHECK CAN MAIN WIRE FOR DISCONNECTION (NO. 1 JUNCTION CONNECTOR - ECM)

CHECK CAN MAIN WIRE FOR DISCONNECTION (NO. 1 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)

CONNECT CONNECTOR

CHECK CAN MAIN WIRE FOR DISCONNECTION (ECM - NO. 1 JUNCTION CONNECTOR)

CONNECT CONNECTOR

CHECK CAN MAIN WIRE FOR DISCONNECTION (NO. 4 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)

CHECK CAN MAIN WIRE FOR DISCONNECTION (NO. 4 JUNCTION CONNECTOR - COMBINATION METER ECU)

CONNECT CONNECTOR

CHECK CAN MAIN WIRE FOR DISCONNECTION (COMBINATION METER ECU - NO. 4 JUNCTION CONNECTOR)

CONNECT CONNECTOR

CHECK CAN MAIN WIRE FOR DISCONNECTION (NO. 2 JUNCTION CONNECTOR - NO. 3 JUNCTION CONNECTOR)

CHECK CAN MAIN WIRE FOR DISCONNECTION (NO. 3 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR)

CAN COMMUNICATION SYSTEM - CAN Main Wire for Disconnection (LHD Models)


DESCRIPTION

There may be an open circuit in the CAN main wire and/or the DLC3 branch wire when the resistance between terminals 6 (CANH) and 14 (CANL) of the DLC3 is 69 Ω or more.

Symptom
Trouble Area
The resistance between terminals 6 (CANH) and 14 (CANL) of DLC3 is 69 Ω or more.
  1. CAN main wire or connector
  2. No. 1 junction connector
  3. No. 2 junction connector
  4. No. 3 junction connector
  5. No. 4 junction connector
  6. ECM
  7. Combination meter ECU

WIRING DIAGRAM


Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Can Communication.Can Communication System.Can Communication System Can Main Wire For Disconnection (Lhd Models)


INSPECTION PROCEDURE

NOTICE:
  1. Turn the ignition switch off before measuring the resistance of the main wire and the branch wire.
  2. After the ignition switch is turned off, check that the key reminder warning system and light reminder buzzer are not in operation.
  3. Before measuring the resistance, leave the vehicle for at least 1 minute and do not operate the ignition switch, any switches or doors. If doors need to be opened in order to check connectors, open the doors and leave them open.
HINT:
Operating the ignition switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.
1.CHECK DLC3


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Can Communication.Can Communication System.Can Communication System Can Main Wire For Disconnection (Lhd Models)

  1. Measure the resistance of the DLC3.

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    		Proceed to
    E16-6 (CANH) - E16-14 (CANL)
    		Ignition switch off
    		108 to 132 Ω
    		A
    E16-6 (CANH) - E16-14 (CANL)
    		Ignition switch off
    		132 Ω or more
    		B
    NOTICE:
    When the measured value is 132 Ω or more and a CAN communication system diagnostic trouble code is output, there may be a fault besides disconnection of the DLC3 branch wire. For that reason, troubleshooting should be performed again from "How to Proceed with Troubleshooting" (RAV4_ACA30 RM000001RSO01MX.html) after repairing the trouble area.


B
REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO DLC3 (CANH, CANL)
A


2.CHECK CAN MAIN WIRE FOR DISCONNECTION (NO. 2 JUNCTION CONNECTOR - ECM)


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Can Communication.Can Communication System.Can Communication System Can Main Wire For Disconnection (Lhd Models)

  1. Disconnect the E75 No. 2 junction connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E75-3 (CANH) - E75-14 (CANL)
    		Ignition switch off
    		108 to 132 Ω


NG
Go to step 4
OK


3.CHECK CAN MAIN WIRE FOR DISCONNECTION (NO. 2 JUNCTION CONNECTOR - COMBINATION METER ECU)


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Can Communication.Can Communication System.Can Communication System Can Main Wire For Disconnection (Lhd Models)

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E75-1 (CANH) - E75-12 (CANL)
    		Ignition switch off
    		108 to 132 Ω


NG
Go to step 9
OK

REPLACE NO. 2 JUNCTION CONNECTOR

4.CONNECT CONNECTOR

  1. Reconnect the E75 No. 2 junction connector.


NEXT


5.CHECK CAN MAIN WIRE FOR DISCONNECTION (NO. 1 JUNCTION CONNECTOR - ECM)


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Can Communication.Can Communication System.Can Communication System Can Main Wire For Disconnection (Lhd Models)

  1. Disconnect the A51 No. 1 junction connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    A51-2 (CANH) - A51-13 (CANL)
    		Ignition switch off
    		108 to 132 Ω


NG
Go to step 7
OK


6.CHECK CAN MAIN WIRE FOR DISCONNECTION (NO. 1 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Can Communication.Can Communication System.Can Communication System Can Main Wire For Disconnection (Lhd Models)

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    A51-3 (CANH) - A51-14 (CANL)
    		Ignition switch off
    		108 to 132 Ω


NG
REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 1 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)
OK

REPLACE NO. 1 JUNCTION CONNECTOR

7.CONNECT CONNECTOR

  1. Reconnect the A51 No. 1 junction connector.


NEXT


8.CHECK CAN MAIN WIRE FOR DISCONNECTION (ECM - NO. 1 JUNCTION CONNECTOR)


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Can Communication.Can Communication System.Can Communication System Can Main Wire For Disconnection (Lhd Models)

  1. Disconnect the A12 ECM connector.

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

    Standard Resistance:
    for 3ZR-FAE:
    Tester Connection
    		Switch Condition
    		Specified Condition
    A12-8 (CANH) - A12-9 (CANL)
    		Ignition switch off
    		108 to 132 Ω
    except 3ZR-FAE:
    Tester Connection
    		Switch Condition
    		Specified Condition
    A12-41 (CANH) - A12-49 (CANL)
    		Ignition switch off
    		108 to 132 Ω


NG
REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO ECM (ECM - NO. 1 JUNCTION CONNECTOR)
OK

REPLACE ECM

9.CONNECT CONNECTOR

  1. Reconnect the E75 No. 2 junction connector.


NEXT


10.CHECK CAN MAIN WIRE FOR DISCONNECTION (NO. 4 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Can Communication.Can Communication System.Can Communication System Can Main Wire For Disconnection (Lhd Models)

  1. Disconnect the E76 No. 4 junction connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E76-4 (CANH) - E767-15 (CANL)
    		Ignition switch off
    		108 to 132 Ω


NG
Go to step 14
OK


11.CHECK CAN MAIN WIRE FOR DISCONNECTION (NO. 4 JUNCTION CONNECTOR - COMBINATION METER ECU)


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Can Communication.Can Communication System.Can Communication System Can Main Wire For Disconnection (Lhd Models)

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E76-5 (CANH) - E76-16 (CANL)
    		Ignition switch off
    		108 to 132 Ω


NG
Go to step 12
OK

REPLACE NO. 4 JUNCTION CONNECTOR

12.CONNECT CONNECTOR

  1. Reconnect the E76 No. 4 junction connector.


NEXT


13.CHECK CAN MAIN WIRE FOR DISCONNECTION (COMBINATION METER ECU - NO. 4 JUNCTION CONNECTOR)


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Can Communication.Can Communication System.Can Communication System Can Main Wire For Disconnection (Lhd Models)

  1. Disconnect the E22 combination meter ECU connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E22-32 (CANH) - E22-31 (CANL)
    		Ignition switch off
    		108 to 132 Ω


NG
REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO COMBINATION METER ASSEMBLY (COMBINATION METER ECU - NO. 4 JUNCTION CONNECTOR)
OK

REPLACE COMBINATION METER ASSEMBLY (COMBINATION METER ECU)

14.CONNECT CONNECTOR

  1. Reconnect the E76 No. 4 junction connector.


NEXT


15.CHECK CAN MAIN WIRE FOR DISCONNECTION (NO. 2 JUNCTION CONNECTOR - NO. 3 JUNCTION CONNECTOR)


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Can Communication.Can Communication System.Can Communication System Can Main Wire For Disconnection (Lhd Models)

  1. Disconnect the E77 No. 3 junction connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E77-3 (CANH) - E77-14 (CANL)
    		Ignition switch off
    		108 to 132 Ω


NG
REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 2 JUNCTION CONNECTOR - NO. 3 JUNCTION CONNECTOR)
OK


16.CHECK CAN MAIN WIRE FOR DISCONNECTION (NO. 3 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR)


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Can Communication.Can Communication System.Can Communication System Can Main Wire For Disconnection (Lhd Models)

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E77-5 (CANH) - E77-16 (CANL)
    		Ignition switch off
    		108 to 132 Ω


NG
REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 3 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR)
OK

REPLACE NO. 3 JUNCTION CONNECTOR