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

Inspection Procedure

  1. CHECK WIRE HARNESS (COWL SIDE J/B RH - POWER SOURCE CONTROL ECU AND BODY GROUND) 
    1. Disconnect the RD J/B connector.
    2. Disconnect the J55 ECU connector.
    3. Measure the resistance of the wire harness side connectors.

    Standard resistance 

    COWL SIDE J/B RH - POWER SOURCE CONTROL ECU AND BODY GROUND

    Tester Connection (Symbols) Specified Condition
    RD-2 - J55-11 (ACCD) Below 1 ohms
    RD-2 or J55-11 (ACCD) - Body ground 10 k ohms or higher
    RD-5 - Body ground Below 1 ohms
    RD-7 - Body ground Below 1 ohms
    Fig 1: Identifying RD J/B Connector (Cowl Side)
    G04044945Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go To Next Step 

  2. CHECK COWL SIDE JUNCTION BLOCK RH (ACC RELAY) 
    1. Disconnect the RN J/B connector.
    2. Measure the resistance of the J/B connectors.

    Standard resistance 

    COWL SIDE JUNCTION BLOCK RH (ACC RELAY) (RESISTANCE)

    Tester Connection Condition Specified Condition
    RN-1 - RD-27 or RD-26 When battery voltage is not applied to terminals RD-2 and RD-7 or RD-5 10 k ohms or higher
    RN-1 - RD-27 or RD-26 When battery voltage is applied to terminals RD-2 and RD-7 or RD-5 Below 1 ohms
    Fig 2: Identifying RN J/B Connector (Cowl Side)
    G04044946Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Result 

    COWL SIDE JUNCTION BLOCK RH (ACC RELAY) (RESULT)

    Result Proceed to
    NG A
    OK (When troubleshooting according to the PROBLEM SYMPTOMS TABLE) B
    OK (When troubleshooting according to the DTC table) C

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

    C: REPLACE POWER SOURCE CONTROL ECU 

    A: REPLACE COWL SIDE JUNCTION BLOCK RH