Power Source Mode does not Change to ON (READY): Procedure

1. Place the electrical key on the driver seat.
2. Depress the brake pedal.
3. Check that the power switch indicator light is green. Then press the power switch to check if 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. Turn the power switch off.
2. Connect the Techstream to the DLC3.
3. Turn the power switch on (IG).
4. Turn the Techstream on.
5. Enter the following menus: Powertrain / Hybrid Control / DTC.
6. Check for DTCs.

   OK

   DTC is not output.

NG → See step   18 

OK: Go to next step 

1. Enter the following menus: Body Electrical / Power Source Control / Data List.
2. Check for DTCs.

   OK

   DTC is not output.

NG → See step   19 

OK: Go to next step 

1. Check the power source mode change.
   1. When the key is inside the vehicle and the park (P) is selected, 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 (IG and ACC)	B
      Power source mode does not change to on (IG)	C
      Power source mode does not change to on (ACC)	D

B → See step   20 

C → See step   21 

D → See step   22 

A: Go to next step 

1. Read the Data List according to the display on the Techstream.
   POWER SOURCE CONTROL
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Stop Light Switch1	Stop light switch 1/ON or OFF	ON: Brake pedal depressed OFF: Brake pedal released	-

   OK

   ON (brake pedal is depressed) and OFF (brake pedal is released) appear on the screen.

NG → See step   11 

OK: Go to next step 

1. Enter the following menus: Body Electrical / Smart Key / Data List.
2. Read the Data List according to the display on the Techstream.
   SMART KEY
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   L Code Check	L code certification result/OK or NG	OK: L code certification result normal NG: L code certification result abnormal	-

   OK

   OK appears on the screen.

NG → See step   14 

OK: Go to next step 

1. Read the Data List according to the display on the Techstream.
   SMART KEY
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Engine Start Request	Start request signal response/OK or NG	OK: Start request condition signal received NG: Start request condition signal not received	-

   OK

   OK appears on the screen.

   Result

   Result	Proceed to
   OK (for Canada)	A
   OK (except Canada)	B
   NG	C

B → See step   10 

C → See step   14 

A: Go to next step 

1. Read the Data List according to the display on the Techstream.
   SMART KEY
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   S Code Check	S code certification result/OK or NG	OK: S code certification result normal NG: S code certification result abnormal	-

   OK

   OK appears on the screen.

NG → See step   16 

OK: Go to next step 

1. Measure the voltage according to the value(s) in the table below.
   Fig 1: Checking ID Code Box (Immobilizer Code ECU)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. Waveform 1
      Fig 2: Identifying Waveform 1

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Tester Connection	L6-20 (IMO) - L5-6 (E1)
      Tool Setting	5 V/DIV., 500 ms/DIV
      Vehicle Condition	Within 3 seconds after power switch on (READY), or within 3 seconds after power switch first turned on (IG) after battery disconnected and connected

   2. Waveform 2

      Tester Connection	L6-21 (IMI) - L5-6 (E1)
      Tool Setting	5 V/DIV., 50 ms/DIV
      Vehicle Condition	Power switch on (IG)

      OK

      The waveform is displayed as shown in illustration.

      TEXT IN ILLUSTRATION
      
      

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

NG → REPLACE ID CODE BOX (IMMOBILIZER CODE ECU) 

OK: Go to next step 

1. Enter the following menus: Body Electrical / Power Source Control / Data List.
2. Read the Data List according to the display on the Techstream.
   POWER SOURCE CONTROL
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Starter Request Signal	Hybrid control system start request signal / ON or OFF	ON: STSW signal is on OFF: STSW signal is off	-

   OK

   Data List display changes when the power switch is operated.

NG → See step   23 

OK → See step   24 

1. Disconnect the A67 connector from the stop light switch assembly.
   Fig 3: Identifying A67 Stop Light Switch Assembly Connector Terminal

   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
   A67-1 (B) - A67-3 (GND)	Always	11 to 14 V

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A67-3 (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 A67 connector to the stop light switch assembly.
   Fig 4: Identifying A67 Stop Light Switch Assembly Connector Terminal

   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
   A67-2 (L) - A67-3 (GND)	Power switch off, brake pedal not depressed	Below 1 V
   A67-2 (L) - A67-3 (GND)	Power switch off, brake pedal depressed	11 to 14 V

   TEXT IN ILLUSTRATION
   
   

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

NG → See step   25 

OK: Go to next step 

1. Disconnect the A22 connector from the power management control ECU.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A22-23 (STP) - A67-2 (L)	Always	Below 1 Ω
   A22-23 (STP)- Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER MANAGEMENT CONTROL ECU - STOP LIGHT SWITCH ASSEMBLY) 

OK → See step   26 

1. Replace transmission control ECU assembly. Refer to REMOVAL .

NEXT: Go to next step 

1. Place the electrical key on the driver seat.
2. Depress the brake pedal.
3. Check that the power switch indicator light is green. Then press the power switch to check if the hybrid system turns on (READY).

   OK

   Power source mode becomes on (READY).

   Result

   Result	Proceed to
   OK	A
   NG (for Canada)	B
   NG (except Canada)	C

B → REPLACE ID CODE BOX (IMMOBILIZER CODE ECU) 

C → REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

A → END (TRANSMISSION CONTROL ECU WAS DEFECTIVE) 

1. Replace certification ECU (smart key ECU assembly).

NEXT: Go to next step 

1. Place the electrical key on the driver seat.
2. Depress the brake pedal.
3. Check that the power switch indicator light is green. Then press the power switch to check if the hybrid system turns on (READY).

   OK

   Power source mode becomes on (READY).

NG → REPLACE ID CODE BOX (IMMOBILIZER CODE ECU) 

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