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Integration Control and Panel Assembly Communication Stop Mode: Procedure

  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    1. Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the main wire and the branch wire.
      WARNING:

      Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.

      NOTE:

      When disconnecting the cable, some systems need to be initialized after the cable is reconnected. Refer to INITIALIZATION .

    NEXT: Go to next step 

  2. CHECK FOR OPEN IN CAN BUS WIRE (INTEGRATION CONTROL AND PANEL BRANCH WIRE) 
    1. Disconnect the L35 integration control and panel connector.
      Fig 1: Identifying L35 Integration Control And Panel Connector Terminals
      GTY287709Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Switch Condition Specified Condition
      L35-26 (CANH) - L35-25 (CANL) Engine switch off 54 to 69 Ω

    NG → REPAIR OR REPLACE INTEGRATION CONTROL AND PANEL BRANCH WIRE OR CONNECTOR (CANH, CANL) 

    OK: Go to next step 

  3. CHECK HARNESS AND CONNECTOR (INTEGRATION CONTROL AND PANEL - BATTERY AND BODY GROUND) 
    1. Connect the cable to the negative (-) battery terminal.
      NOTE:

      When disconnecting the cable, some systems need to be initialized after the cable is reconnected. Refer to INITIALIZATION .

    2. Disconnect the L35 integration control and panel connectors.
      Fig 2: Identifying L35 Integration Control And Panel Connector Terminals
      GTY289330Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      L35-10 (GND1) - Body ground Always Below 1 Ω
    4. Measure the voltage according to the value(s) in the table below.

      Standard voltage

      Tester Connection Switch Condition Specified Condition
      L35-1 (+B1) - Body ground Always 11 to 14 V
      L35-2 (ACC) - Body ground Engine switch on (ACC) 11 to 14 V
      L35-3 (IG) - Body ground Engine switch on (IG) 11 to 14 V

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → See step   4 

  4. REPLACE INTEGRATION CONTROL AND PANEL ASSEMBLY. Refer to  REMOVAL