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Integration Control and Panel Assembly Power Source Circuit: Procedure

  1. INSPECT FUSE (RADIO NO. 1, P-ACC, P-IG1-1) 
    1. Disconnect the RADIO NO. 1, P-ACC and P-IG1-1 fuses from the passenger side junction block.
    2. Measure the resistance of the fuses.

      Standard resistance

      Tester Connection Condition Specified Condition
      RADIO NO. 1 fuse Always Below 1 Ω
      P-ACC fuse Always Below 1 Ω
      P-IG1-1 fuse Always Below 1 Ω

    NG → REPLACE FUSE 

    OK: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (INTEGRATION CONTROL AND PANEL ASSEMBLY - BATTERY AND BODY GROUND) 
    1. Disconnect the L35 panel connector.
      Fig 1: Identifying Integration Control And Panel Assembly Harness Connector Terminals
      GTY288528Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. 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
    3. 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   3 

  3. PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE