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July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Inspection Procedure

  1. CHECK HARNESS AND CONNECTOR (BODY ECU - MULTI-DISPLAY) 
    1. Disconnect the body ECU connector B5 and multi-display connector M5.
    2. Measure the resistance according to the value(s) in the table below.

    Standard resistance 

    RESISTANCE SPECIFICATION

    Tester connection Condition Specified condition
    DR - ACAN Always Below 1 Ω
    DR - Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Fig 1: Disconnecting Body ECU Connector B5 And Multi-Display Connector M5
    G05270992Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

    OK: Go to next step 

  2. INSPECT BODY ECU (OUTPUT SIGNAL) 
    1. Reconnect the body ECU connector.
    2. Turn the ignition switch to the ON position.
    3. Turn the light control switch to the TAIL or HEAD position.
    4. Measure the voltage according to the value(s) in the table below.

    Standard voltage 

    VOLTAGE SPECIFICATION

    Tester connection Condition Specified condition
    DR - Body ground Automatic light control sensor is covered. Above 9 V

    NG:  GO TO LIGHTING SYSTEM

    Fig 2: Connecting Multi-Display Connector M5
    G05270993Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

    OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 

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