Can Communication System (W/ Vsc) Open In Can Main Bus Line

Power Source Network. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
Networking. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

PRECAUTION

DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

CHECK FOR OPEN IN CAN BUS WIRE (NO. 3 JUNCTION CONNECTOR - DLC3)

CONNECT CONNECTOR

CHECK FOR OPEN IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - ECM)

CHECK FOR OPEN IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - NO. 3 JUNCTION CONNECTOR)

CONNECT CONNECTOR

CHECK FOR OPEN IN CAN BUS WIRE (ECM - NO. 1 JUNCTION CONNECTOR)

CONNECT CONNECTOR

CHECK FOR OPEN IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - NO. 1 JUNCTION CONNECTOR)

CHECK FOR OPEN IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - NO. 3 JUNCTION CONNECTOR)

CONNECT CONNECTOR

CHECK FOR OPEN IN CAN BUS WIRE (NO. 3 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)

CAN COMMUNICATION SYSTEM (w/ VSC) - Open in CAN Main Bus Line


DESCRIPTION

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

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

WIRING DIAGRAM


Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Networking.Can Communication System (W/ Vsc).Can Communication System (W/ Vsc) Open In Can Main Bus Line


INSPECTION PROCEDURE

HINT:
Operating the ignition switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.
1.PRECAUTION
NOTICE:
After turning the ignition switch off, waiting time may be required before disconnecting the cable from the battery terminal. Therefore, make sure to read the disconnecting the cable from the battery terminal notice before proceeding with work (HILUX_TGN26 RM000004QR1003X.html).

NEXT


2.DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

  1. Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the CAN main wire and the CAN branch wire.

    CAUTION:
    Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
    NOTICE:
    When disconnecting the cable, some systems need to be initialized after the cable is reconnected (HILUX_TGN26 RM000004QR3003X.html).

NEXT


3.CHECK FOR OPEN IN CAN BUS WIRE (NO. 3 JUNCTION CONNECTOR - DLC3)


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Networking.Can Communication System (W/ Vsc).Can Communication System (W/ Vsc) Open In Can Main Bus Line

  1. Disconnect the G57 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
    G57-2 (CANH) - G18-6 (CANH)
    		Ignition switch off
    		Below 1 Ω
    G57-1 (CANL) - G18-14 (CANL)
    		Ignition switch off
    		Below 1 Ω
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 3 Junction Connector)
    *b
    		Front view of DLC3


NG
REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO DLC3 (CANH, CANL)
OK


4.CONNECT CONNECTOR

  1. Reconnect the G57 No. 3 junction connector.


NEXT


5.CHECK FOR OPEN IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - ECM)


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Networking.Can Communication System (W/ Vsc).Can Communication System (W/ Vsc) Open In Can Main Bus Line

  1. Disconnect the G87 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
    G87-12 (CANH) - G87-6 (CANL)
    		Ignition switch off
    		108 to 132 Ω
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 1 Junction Connector)


NG
Go to step 7
OK


6.CHECK FOR OPEN IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - NO. 3 JUNCTION CONNECTOR)


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Networking.Can Communication System (W/ Vsc).Can Communication System (W/ Vsc) Open In Can Main Bus Line

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    G87-4 (CANH) - G87-1 (CANL)
    		Ignition switch off
    		108 to 132 Ω
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 1 Junction Connector)


NG
Go to step 9
OK

REPLACE NO. 1 JUNCTION CONNECTOR

7.CONNECT CONNECTOR

  1. Reconnect the G87 No. 1 junction connector.


NEXT


8.CHECK FOR OPEN IN CAN BUS WIRE (ECM - NO. 1 JUNCTION CONNECTOR)


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Networking.Can Communication System (W/ Vsc).Can Communication System (W/ Vsc) Open In Can Main Bus Line

  1. Disconnect the G38 ECM connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    G38-24 (CANH) - G38-23 (CANL)
    		Ignition switch off
    		108 to 132 Ω
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to ECM)


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

REPLACE ECM (HILUX_TGN26 RM0000013Z0019X.html)

9.CONNECT CONNECTOR

  1. Reconnect the G87 No. 1 junction connector.


NEXT


10.CHECK FOR OPEN IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - NO. 1 JUNCTION CONNECTOR)


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Networking.Can Communication System (W/ Vsc).Can Communication System (W/ Vsc) Open In Can Main Bus Line

  1. Disconnect the G86 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
    G86-5 (CANH) - G86-16 (CANL)
    		Ignition switch off
    		108 to 132 Ω
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 2 Junction Connector)


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


11.CHECK FOR OPEN IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - NO. 3 JUNCTION CONNECTOR)


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Networking.Can Communication System (W/ Vsc).Can Communication System (W/ Vsc) Open In Can Main Bus Line

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    G86-6 (CANH) - G86-17 (CANL)
    		Ignition switch off
    		108 to 132 Ω
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 2 Junction Connector)


NG
Go to step 12
OK

REPLACE NO. 2 JUNCTION CONNECTOR

12.CONNECT CONNECTOR

  1. Reconnect the G86 No. 2 junction connector.


NEXT


13.CHECK FOR OPEN IN CAN BUS WIRE (NO. 3 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Networking.Can Communication System (W/ Vsc).Can Communication System (W/ Vsc) Open In Can Main Bus Line

  1. Disconnect the G58 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
    G58-2 (CANH) - G58-1 (CANL)
    		Ignition switch off
    		108 to 132 Ω
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 3 Junction Connector)


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

REPLACE NO. 3 JUNCTION CONNECTOR