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Power Source Mode does not Change to ON (READY) [09/2014 - ]: Procedure

  1. CHECK HYBRID CONTROL SYSTEM (READY ON) 
    1. Place the electrical key transmitter sub-assembly on the driver seat.
    2. Move the shift lever to P.
    3. Depress the brake pedal.
    4. Confirm that the smart warning light is displayed, and then press the power switch and check that the hybrid system turns on (READY).

      OK

      Power source mode becomes on (READY).

    Result:  OK

    OK 

    END (HYBRID SYSTEM PERMISSION CONDITIONS WERE NOT SATISFIED) 

    Result:  NG

    NG 

    See step  2

  2. CHECK AUXILIARY BATTERY 
    1. Measure the auxiliary battery voltage.

      Standard voltage

      11 to 14 V (power switch off)

      HINT: 

      • It may be possible to tell whether the auxiliary battery is discharged by operating the horn.
      • If the auxiliary battery voltage is less than 11 V, charge or replace it.

    Result:  NEXT

    NEXT 

    See step  3

  3. CHECK FOR DTC (ALL) 
    1. Using the Techstream, confirm the output of DTCs for all systems.

      OK

      No DTCs are output.

      NOTE:

      Make sure that no DTCs are output. If any DTCs are output, proceed to the Diagnostic Trouble Code Chart.

    Result:  NG

    NG 

    GO TO DTC CHART 

    Result:  OK

    OK 

    See step  4

  4. CHECK WAVE ENVIRONMENT 
    1. If the problem occurs in certain locations or times of day, the possibility of wave interference is high.

      HINT: 

      Whether or not the problem is due to wave interference can be checked by holding the electrical key transmitter sub-assembly near the door control receiver (RF band).

    Result:  NEXT

    NEXT 

    See step  5

  5. CHECK POWER SWITCH CONDITION 
    1. Get into the vehicle while carrying an electrical key transmitter sub-assembly.
    2. Move the shift lever to P.
    3. With the brake pedal released, check that pressing the power switch causes the power source mode to change.

      Result

      Result Proceed to
      Off → on (ACC) → on (IG) → off A
      Power source mode does not change to on (ACC) and on (IG) B
      Power source mode changes to on (IG) but not to on (ACC) C
      Power source mode changes to on (ACC) but not to on (IG) D

    Result:  B

    B 

    GO TO POWER SOURCE MODE DOES NOT CHANGE TO ON (IG AND ACC) 

    (Refer to Power Source Mode does not Change to ON (IG and ACC) [09/2014 - 10/2015] or Power Source Mode does not Change to ON (IG and ACC) [10/2015 - ] )

    Result:  C

    C 

    GO TO POWER SOURCE MODE DOES NOT CHANGE TO ON (IG) 

    (Refer to Power Source Mode does not Change to ON (IG) [09/2014 - 10/2015] or Power Source Mode does not Change to ON (IG) [10/2015 - ] )

    Result:  D

    D 

    GO TO POWER SOURCE MODE DOES NOT CHANGE TO ON (ACC) 

    (Refer to Power Source Mode does not Change to ON (ACC) [09/2014 - ] )

    Result:  A

    A 

    See step  6

  6. READ VALUE USING TECHSTREAM (STEERING UNLOCK SWITCH) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Power Source Control / Data List.
    5. According to the display on the Techstream, read the Data List.
      POWER SOURCE CONTROL

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Steering Unlock Switch State of steering unlock sensor signal output from steering lock actuator assembly/ON or OFF ON: Steering unlocked
      OFF: Steering locked
      • When the shift lever is in P and the power switch is off, if any door is opened or closed, the steering is locked.
      • When the electrical key transmitter sub-assembly is inside the vehicle and the power switch is turned on (ACC) or on (IG), the steering unlocks.
      • The hybrid control system cannot be started when the steering unlock signal is off.

      OK

      The item in the Data List indicates "ON" (the steering is unlocked).

    Result:  NG

    NG 

    GO TO STEERING LOCK SYSTEM (UNABLE TO UNLOCK STEERING WHEEL) 

    (Refer to Unable to Unlock Steering Wheel (Hybrid Control System cannot Start) [09/2014 - ] )

    Result:  OK

    OK 

    See step  7

  7. READ VALUE USING TECHSTREAM (STOP LIGHT SWITCH1) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Power Source Control / Data List.
    5. According to the display on the Techstream, read the Data List.
      POWER SOURCE CONTROL

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Stop Light Switch1 State of brake pedal/ON or OFF ON: Brake pedal depressed
      OFF: Brake pedal released
      • Use this item to determine whether the stop light switch is malfunctioning.
      • The hybrid control system cannot be started when this item is OFF.
      • When this item is malfunctioning, the hybrid control system can be started by pressing and holding the power switch for a certain period of time.

      OK

      The item in the Data List changes when the brake pedal is depressed and released.

    Result:  NG

    NG 

    See step  13

    Result:  OK

    OK 

    See step  8

  8. READ VALUE USING TECHSTREAM (L CODE CHECK) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Smart Access / Data List.
    5. According to the display on the Techstream, read the Data List.
      SMART ACCESS

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      L Code Check Verification result between ID code box (immobilizer code ECU) and steering lock ECU (steering lock actuator assembly)/OK or NG OK: Verification result normal
      NG: Verification result abnormal      		 When NG is displayed: 
      • The ID code for the ID code box (immobilizer code ECU) or steering lock ECU (steering lock actuator assembly) is not registered or the ID code box (immobilizer code ECU) or steering lock ECU (steering lock actuator assembly) is malfunctioning.
      • Steering cannot be locked.
      • Steering cannot be unlocked (the hybrid control system cannot be started).

      OK

      The Data List item changes to "OK" when the electrical key transmitter sub-assembly is inside the vehicle.

      HINT: 

      Reasons for verification failure:

      • The steering lock ECU (steering lock actuator assembly) or ID code box (immobilizer code ECU) is malfunctioning.
      • There is a problem with the communication between ECUs.
      • An ECU is replaced, but is not registered.
      • An ECU is replaced with an ECU which has a code already stored in it.

    Result:  NG

    NG 

    See step  15

    Result:  OK

    OK 

    See step  9

  9. READ VALUE USING TECHSTREAM (STARTER REQUEST SIGNAL) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Smart Access / Data List.
    5. According to the display on the Techstream, read the Data List.
      SMART ACCESS

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Engine Start Condition Status of hybrid control system start permission signal determined by steering lock ECU (steering lock actuator assembly) and sent to certification ECU (smart key ECU assembly)/ OK or NG OK: Hybrid control system start permitted
      NG: Hybrid control system start prohibited
      • When Permitted is displayed, the certification ECU (smart key ECU assembly) receives an unlock confirmation signal from the steering lock ECU (steering lock actuator assembly) and starting of the hybrid control system is possible.
      • The hybrid control system cannot be started when Prohibited is displayed.
      NOTE:

      Check that the smart warning is displayed on the multi-information display on the combination meter assembly, and then press the power switch.

      OK

      The display changes in response to the operation of the power switch.

    Result:  NG

    NG 

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

    (Refer to REMOVAL [09/2014 - ] )

    Result:  OK

    OK 

    See step  10

  10. READ VALUE USING TECHSTREAM (S CODE CHECK) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Smart Access / Data List.
    5. According to the display on the Techstream, read the Data List.
      SMART ACCESS

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      S Code Check Verification result between certification ECU (smart key ECU assembly) and ID code box (immobilizer code ECU)/OK or NG OK: Verification result normal
      NG: Verification result abnormal      		 When NG is displayed: 
      • The ID code for the certification ECU (smart key ECU assembly) or ID code box (immobilizer code ECU) is not registered or the certification ECU (smart key ECU assembly) or ID code box (immobilizer code ECU) is malfunctioning.
      • The steering cannot be locked.
      • The steering cannot be unlocked (the hybrid control system cannot be hybrid control system).

      OK

      OK (S code certification result normal) appears on the screen.

      HINT: 

      Reasons for verification failure:

      • The certification ECU (smart key ECU assembly) or The ID code box (immobilizer code ECU) is malfunctioning.
      • There is a problem with the communication between ECUs.
      • An ECU is replaced, but is not registered.
      • An ECU is replaced with an ECU which has a code already stored in it.

    Result:  NG

    NG 

    See step  17

    Result:  OK

    OK 

    See step  11

  11. CHECK ENGINE IMMOBILIZER SYSTEM 
    1. Measure the voltage according to the value(s) in the table below.
      GTY528619Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Component with harness connected
      (Power Management Control ECU)
      1. Waveform 1
        GTY531908Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a Approximately 160 ms *b Approximately 270 ms
        MEASUREMENT CONDITION

        Item Content
        Tester Connection N92-28 (IMO) - N91-6 (E1)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds of hybrid control system start or within 3 seconds of power switch turned on (IG) after auxiliary battery cable disconnected and reconnected
      2. Waveform 2
        GTY525426Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a Approximately 160 ms *b Approximately 270 ms
        MEASUREMENT CONDITION

        Item Content
        Tester Connection N92-29 (IMI) - N91-6 (E1)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds of hybrid control system start or within 3 seconds of power switch turned on (IG) after auxiliary battery cable disconnected and reconnected

        OK

        The waveform is displayed as shown in illustration.

    Result:  NG

    NG 

    REPLACE ID CODE BOX (IMMOBILIZER CODE ECU) 

    (Refer to REMOVAL [09/2014 - ] )

    Result:  OK

    OK 

    See step  12

  12. READ VALUE USING TECHSTREAM (STARTER REQUEST SIGNAL) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Power Source Control / Data List.
    5. According to the display on the Techstream, read the Data List.
      POWER SOURCE CONTROL

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Starter Request Signal Hybrid control system start request signal status/ON or OFF ON: With the shift lever in P and brake pedal depressed, the power switch is pressed and held
      OFF: After approx. 1 sec. has elapsed, the power switch is released
      • When the hybrid control system cannot be started due to a start request signal malfunction, OFF is displayed.
      • When the power switch is pressed, the duration of time that ON is displayed will be extremely short. As such, the power switch needs to be pressed and held for a certain amount of time.
      NOTE:

      Check that the smart warning is displayed on the multi-information display on the combination meter assembly, and then press the power switch.

      OK

      The display changes in response to the operation of the power switch.

    Result:  OK

    OK 

    GO TO HYBRID CONTROL SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) 

    Result:  NG

    NG 

    REPLACE POWER MANAGEMENT CONTROL ECU 

    (Refer to REMOVAL [09/2014 - ] )

  13. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - STOP LIGHT SWITCH ASSEMBLY) 

    See step  4

    Result:  NG

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result:  OK

    OK 

    See step  14

  14. INSPECT STOP LIGHT SWITCH ASSEMBLY 
    1. Inspect the stop light switch assembly (Refer to ON-VEHICLE INSPECTION [09/2014 - 10/2015] or ON-VEHICLE INSPECTION [10/2015 - ] ).

    Result:  OK

    OK 

    REPLACE POWER MANAGEMENT CONTROL ECU 

    (Refer to REMOVAL [09/2014 - ] )

    Result:  NG

    NG 

    REPLACE STOP LIGHT SWITCH ASSEMBLY 

    (Refer to REMOVAL [09/2014 - ] )

  15. CHECK STEERING LOCK ACTUATOR ASSEMBLY 
    1. Replace the steering lock ECU (steering lock actuator assembly) with a new one (Refer to DISASSEMBLY [09/2014 - ] ).
    2. Perform the registration procedures (Refer to REGISTRATION [09/2014 - ] ).

    Result:  NEXT

    NEXT 

    See step  16

  16. CHECK HYBRID CONTROL SYSTEM (READY ON) 
    1. Place the electrical key transmitter sub-assembly on the driver seat.
    2. Move the shift lever to P.
    3. Depress the brake pedal.
    4. Confirm that the smart warning light is displayed, and then press the power switch and check that the hybrid system turns on (READY).

      OK

      Power source mode becomes on (READY).

    Result:  OK

    OK 

    END (STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY) WAS DEFECTIVE) 

    Result:  NG

    NG 

    REPLACE ID CODE BOX (IMMOBILIZER CODE ECU) 

    (Refer to REMOVAL [09/2014 - ] )

  17. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 
    1. Replace the certification ECU (smart key ECU assembly) with a new one (Refer to REMOVAL [09/2014 - ] ).
    2. Perform the registration procedures (Refer to REGISTRATION [09/2014 - ] ).

    Result:  NEXT

    NEXT 

    See step  18

  18. CHECK HYBRID CONTROL SYSTEM (READY ON) 
    1. Place the electrical key transmitter sub-assembly on the driver seat.
    2. Move the shift lever to P.
    3. Depress the brake pedal.
    4. Confirm that the smart warning light is displayed, and then press the power switch and check that the hybrid system turns on (READY).

      OK

      Power source mode becomes on (READY).

    Result:  OK

    OK 

    END (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) WAS DEFECTIVE) 

    Result:  NG

    NG 

    REPLACE ID CODE BOX (IMMOBILIZER CODE ECU) 

    (Refer to REMOVAL [09/2014 - ] )

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