Power Source Mode does not Change to ON (READY) [12/2013 - ]: Procedure

1. Place the electrical key transmitter sub-assembly on the driver seat.
2. Depress the brake pedal.
3. 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).

NG → See step   2 

OK → END (HYBRID SYSTEM PERMISSION CONDITIONS WERE NOT SATISFIED) 

1. Measure the auxiliary battery voltage with the power switch off.

   Standard voltage

   11 to 14 V

   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.

NEXT: Go to next step 

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.

NG → GO TO DTC CHART  DIAGNOSTIC TROUBLE CODE CHART [12/2013 - ] 

OK: Go to next step 

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).

NEXT: Go to next step 

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

B → See step   25 

C → See step   26 

D → See step   27 

A: Go to next step 

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).

NG → See step   23 

OK: Go to next step 

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.

NG → See step   10 

OK: Go to next step 

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 Key / Data List.
5. According to the display on the Techstream, read the Data List.
   SMART KEY
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   L Code Check	w/o ID Code Box (Immobilizer Code ECU): Verification result between certification ECU (smart key ECU assembly) and steering lock ECU (steering lock actuator assembly)/OK or NG w/ ID Code Box (Immobilizer Code ECU): 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: L code has not been registered for the certification ECU (smart key ECU assembly) or ID code box (immobilizer code ECU) or steering lock ECU (steering lock actuator assembly). Steering wheel cannot be locked. Steering wheel cannot be unlocked (the hybrid 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) 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.

NG → See step   13 

OK: Go to next step 

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 Key / Data List.
5. According to the display on the Techstream, read the Data List.
   SMART KEY
   
   

   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 OK is displayed, the certification ECU (smart key ECU assembly) receives an unlock confirmation signal from the steering lock ECU (steering lock actuator assembly) and hybrid control system starting possible. The hybrid control system cannot be started when NG 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

   Result	Proceed to
   NG	A
   OK	B

B → See step   15 

A → REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

1. Disconnect the A65 stop light switch assembly connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Measure the voltage and resistance according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   A65-1 (B) - A65-3 (GND)	Engine switch off	11 to 14 V

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A65-3 (GND) - Body ground	Always	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Stop Light Switch Assembly)

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Reconnect the A65 stop light switch assembly connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   A65-2 (OUT) - A65-3 (GND)	Engine switch off, brake pedal not depressed	Below 1 V
   A65-2 (OUT) - A65-3 (GND)	Engine switch off, brake pedal depressed	11 to 14 V

   TEXT IN ILLUSTRATION
   
   

   *a	Component with harness connected (Stop Light Switch Assembly)

NG → See step   24 

OK: Go to next step 

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   29 

1. Replace the steering lock ECU (steering lock actuator assembly) with a new one. Refer to DISASSEMBLY [12/2013 - ] .
2. Perform the registration procedures (Refer to the Service Bulletin).

NEXT: Go to next step 

1. Place the electrical key transmitter sub-assembly on the driver seat.
2. Depress the brake pedal.
3. 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).

NG → See step   30 

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

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 Key / Data List.
5. According to the display on the Techstream, read the Data List.
   SMART KEY
   
   

   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: registered for the certification ECU (smart key ECU assembly) or ID code box (immobilizer code ECU). Steering cannot be locked. Steering cannot be unlocked (the hybrid 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 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.

NG → See step   18 

OK: Go to next step 

1. Measure the voltage according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   TEXT IN ILLUSTRATION
   
   

   *a	Component with harness connected (Power Management Control ECU)

   1. Waveform 1

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      TEXT IN ILLUSTRATION
      
      

      *a

      Approximately 160 ms

      *b

      Approximately 270 ms

      MEASUREMENT CONDITION
      
      

      Item	Content
      Tester Connection	G58-20 (IMO) - G57-6 (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

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      TEXT IN ILLUSTRATION
      
      

      *a

      Approximately 160 ms

      *b

      Approximately 270 ms

      MEASUREMENT CONDITION
      
      

      Item	Content
      Tester Connection	G58-21 (IMI) - G57-6 (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.

NG → See step   20 

OK: Go to next step 

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.

NG → See step   29 

OK → See step   28 

1. Replace the certification ECU (smart key ECU assembly) with a new one. Refer to REMOVAL [12/2013 - ] .
2. Perform the registration procedures. Refer to REGISTRATION [12/2013 - ] .

NEXT: Go to next step 

1. Place the electrical key transmitter sub-assembly on the driver seat.
2. Depress the brake pedal.
3. 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).

NG → See step   30 

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

1. Disconnect the G58 connector from the power management control ECU.
2. Disconnect the G49 connector from the ID code box (immobilizer code ECU).
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G58-20 (IMO) - G49-3 (EFII)	Always	Below 1 Ω
   G58-21 (IMI) - G49-4 (EFIO)	Always	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Replace the power management control ECU with a new one. Refer to REMOVAL [12/2013 - ] .

NEXT: Go to next step 

1. Place the electrical key transmitter sub-assembly on the driver seat.
2. Depress the brake pedal.
3. 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).

NG → See step   30 

OK → END (POWER MANAGEMENT CONTROL ECU WAS DEFECTIVE)