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Power Source Mode does not Change to ON (IG) [08/2016 - ]: Procedure

  1. CHECK DTC (ALL) 

    See step  1

    Result: 

    NG 

    GO TO DTC CHART 

    (Refer to DIAGNOSTIC TROUBLE CODE CHART [08/2016 - ] )

    Result: 

    OK 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (BATTERY - POWER MANAGEMENT CONTROL ECU) 
    1. Disconnect the power management control ECU connector.
      GTY707558Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Rear view of wire harness connector
      (to Power Management Control ECU)
    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      D89-1 (AM22) - Body ground Always 9.5 to 14 V

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR IN CIRCUIT CONNECTED TO POWER SOURCE 

    Result: 

    OK 

    See step  3

  3. INSPECT IG2 RELAY 
    1. Remove the IG2 relay from the engine room relay block.
    2. Inspect IG2 relay (Refer to ON-VEHICLE INSPECTION [08/2016 - ] ).

    Result: 

    NG 

    REPLACE IG2 RELAY 

    Result: 

    OK 

    See step  4

  4. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (IG1 NO. 1, IG1 NO. 2, IG1 NO. 3 AND IG1 NO. 4 RELAYS) 
    1. Disconnect the instrument panel junction block assembly connectors.
      GTY703709Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Instrument Panel Junction Block Assembly)
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      2A-16 - 2D-7 20°C (68°F) 50.63 to 123.75 Ω

    Result: 

    NG 

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY 

    Result: 

    OK 

    See step  5

  5. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) 
    1. Disconnect the D89 power management control ECU connector.
    2. Disconnect the 2A instrument panel block assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D89-20 (IG1D) - 2A-16 Always Below 1 Ω
      D89-20 (IG1D) - Body ground Always 10 kΩ or higher

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  6

  6. CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - BODY GROUND) 
    1. Disconnect the 2D instrument panel junction block assembly connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      2D-7 - Body ground Always Below 1 Ω

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  7

  7. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - IG2 RELAY) 
    1. Disconnect the A35 power management control ECU connector.
    2. Remove the IG2 relay from the engine room relay block.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      A35-8 (IG2D) - 1 (IG2 relay terminal) Always Below 1 Ω
      A35-8 (IG2D) - Body ground Always 10 kΩ or higher

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  8

  8. CHECK HARNESS AND CONNECTOR (IG2 RELAY - BODY GROUND) 
    1. Remove the IG2 relay from the engine room relay block.
      GTY697360Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without relay connected
      (IG2 Relay Terminal)
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      2 (IG2 relay terminal) - Body ground Always Below 1 Ω

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  9

  9. INSPECT POWER MANAGEMENT CONTROL ECU 

    See step  3

    Result: 

    NG 

    REPLACE POWER MANAGEMENT CONTROL ECU 

    (Refer to REMOVAL [12/2015 - 11/2017] , or refer to REMOVAL [11/2017 - ] )

    Result: 

    OK 

    See step  10

  10. CONFIRMATION TEST 

    Refer to Power Source Mode does not Change to ON (IG and ACC) [08/2016 - ] 

    Result: 

    OK 

    SYSTEM RETURNED TO NORMAL (PROBLEM OCCURRED DUE TO BAD CONNECTION, BUT RETURNED TO NORMAL BY RECONNECTING CONNECTOR) 

    Result: 

    NG 

    CHECK RELAY CONTACT CIRCUIT 

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