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Inspection Procedure

  1. INSPECT FUSE (P-ACC, DOME) 
    1. Disconnect the DOME fuse from the main body ECU.
    2. Disconnect the P-ACC fuse from the passenger side junction block.
    3. Measure the resistance according to the value(s) in the table below

    Standard resistance 

    TESTER CONNECTION SPECIFIED CONDITION CHART

    Tester Connection Condition Specified Condition
    P-ACC fuse Always Below 1 Ω
    DOME fuse

    NG: REPLACE FUSE 

    OK: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (CLOCK - BATTERY AND MULTI-DISPLAY) 
    1. Disconnect the L38 clock connector.
    2. Fig 1: Identifying L38 Clock Connector
      G05784562Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      L38-7 (E) - Body ground Always Below 1 Ω
    4. Measure the voltage according to the value(s) in the table below.

    Standard voltage 

    TESTER CONNECTION SPECIFIED CONDITION CHART

    Tester Connection Switch Condition Specified Condition
    L38-4 (ACC) - Body ground Power switch ON (ACC) 11 to 14 V
    L38-8 (B) - Body ground Always 11 to 14 V

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: REPLACE CLOCK ASSEMBLY  (See REMOVAL )