CAN COMMUNICATION SYSTEM Multi-media Module Receiver Assembly Communication Stop Mode

DESCRIPTION

Detection Item Symptom Trouble Area
Multi-media Module Receiver Assembly Communication Stop Mode

  • "AVN1" is not displayed on the "Communication Bus Check" screen of the intelligent tester.

  • Applies to "Multi-media Module Receiver Assembly Communication Stop Mode" in the "DTC Combination Table"

  • Multi-media module receiver assembly branch wire or connector

  • Power source circuit of multi-media module receiver assembly

  • Multi-media module receiver assembly

WIRING DIAGRAM

A019OIVE12
A019OIVE13

INSPECTION PROCEDURE

Note


  • Turn the engine switch off before measuring the resistances between CAN bus main wires and between CAN bus branch wires.

  • Turn the engine switch off before inspecting CAN bus wires for a ground short.

  • After the engine switch is turned off, check that the key reminder warning system and light reminder warning system are not operating.

  • Before measuring the resistance, leave the vehicle as is for at least 1minute and do not operate the engine switch, any other switches or the doors. If any doors need to be opened in order to check connectors, open the doors and leave them open.

Tech Tips


  • Operating the engine 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.

  • Even after DTCs are cleared, if a DTC is stored again after driving the vehicle for a while, the malfunction may be occurring due to vibration of the vehicle. In such a case, wiggling the ECUs or wire harness while performing the inspection below may help determine the cause of the malfunction.

PROCEDURE


  1. CHECK OPEN IN CAN BUS WIRE (MULTI-MEDIA MODULE RECEIVER ASSEMBLY BRANCH WIRE)


    1. Turn the engine switch off.

    2. A019MXHE14
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Multi-media Module Receiver Assembly)

      Disconnect the G36 multi-media module receiver assembly connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G36-1 (CANH) - G36-2 (CANL) Engine switch off 54 to 69 Ω

    NG

    REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY BRANCH WIRE)

    OK

  2. CHECK HARNESS AND CONNECTOR (POWER SOURCE TERMINAL)


    1. A019MXHE05
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Multi-media Module Receiver Assembly)

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      G36-17 (+B1) - Body ground Always 11 to 14 V
      G36-16 (ACC1) - Body ground Engine switch on (ACC) 11 to 14 V
      G36-15 (IG) - Body ground Engine switch on (IG) 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE TERMINAL)

    OK

  3. CHECK HARNESS AND CONNECTOR (GROUND TERMINAL)


    1. A019MXHE06
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Multi-media Module Receiver Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G36-12 (GND1) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (GROUND TERMINAL)

    OK

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here