Repair Instruction: Initialization

HINT.

The TCM (ECT) memorizes the vehicle conditions when controlling the automatic transmission assembly and engine assembly

1. The "Reset Memory" procedure is as follows
   1. Turn the engine switch off.
   2. Connect the Techstream to the DLC3
   3. Turn the engine switch on (IG)
   4. Turn the Techstream on
   5. Enter the following menus' Powertrain / ECT / Utility / Reset Memory
      NOTE: After performing the Reset Memory, be sure to perform the Road Test described previously (See ROAD TEST ).

1. "Road test" procedure is as follows
   1. Warm up the engine
   2. According to the replaced parts, perform the road test shown below
      ECU REPLACEMENT AND KEY REGISTRATION PROCEDURES CHART
      
      

      Replaced Parts	Road Test
      Automatic transmission assembly TCM Valve body assembly Shift solenoid valve SL3 Engine assembly ECM	Perform pattern 1, 2 and 3 Pattern 1.*1  With shift lever in D, after gradually accelerating to 50 km/h (31 mph) or more, gradually decelerate to approx 30 km/h (19 mph) Pattern 2:  When driving at approximately 50 km/h (31 mph) with the D4 range selected, release the accelerator pedal to allow the vehicle to decelerate gradually to approximately 10 km/h (6 mph) Pattern 3.*2  With shift lever in M and 5th gear selected, accelerate to a speed higher than 50 km/h (31 mph) While gradually decelerating, downshift to 4th gear at approx 50 km/h (25 mph), to 3rd gear at approx 40 km/h (25 mph), and to 2nd gear at approx 30 km/h (19 mph)
      Shift solenoid valve SL1 Shift solenoid valve SL2 Shift solenoid valve SL4 Shift solenoid valve SL5	Perform pattern 1 and 3 Pattern 1:*1  With shift lever in D, after gradually accelerating to 50 km/h (31 mph) or more, gradually decelerate to approx 30 km/h (19 mph) Pattern 3 *2  With shift lever in M and 5th gear selected, accelerate to a speed higher than 50km/h (31 mph) While gradually decelerating, downshift to 4th gear at approx 50 km/h (25 mph), to 3rd gear at approx 40 km/h (25 mph), and to 2nd gear at approx 30 km/h (19 mph)
      HINT *1. After gradually accelerating for a distance of approximately 130 m (426.4 ft) for a period of approximately 15 seconds, gradually decelerate for a distance of approximately 45 m (147.6 ft) for a period of approximately 5 seconds *2: Accelerate the vehicle to a speed slightly higher than 50 km/h (31 mph) Move the shift lever to M and select 5th gear Release the accelerator pedal and allow the vehicle to decelerate gradually When the vehicle decelerates to approximately 50 km/h (31 mph), downshift to 4th gear. When the vehicle decelerates to approximately 40 km/h (25 mph), downshift to 3rd gear When the vehicle decelerates to approximately 30 km/h (19 mph), downshift to 2nd gear. When decelerating, apply the brakes as necessary to adjust the vehicle speed

      Fig 1: Driving Pattern Graph

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT.

      • *1. The speed, time and distance values are approximate values
      • *2. After accelerating, the deceleration does not need to be performed immediately.
      • *3. There is no specified time or distance.
   3. Repeat the road tests until the shift shock and engine speed overrun (engine speed flare when shifting) reach an acceptable level
      NOTE: When repeating the acceleration / deceleration cycle of a road test pattern, bring the vehicle to a complete stop before accelerating again.

1. Be sure to perform the following procedure after replacing the distance control ECU
   1. Turn the engine switch on (IG).
   2. Turn the cruise control main switch on
   3. With the brake pedal depressed, push the cruise control main switch to RES/ACC 3 times within 3 seconds. Check that the buzzer sounds at this time
2. Perform any of the following to cancel beam axis adjustment mode.
   • Turn the cruise control main switch off
   • Turn the engine switch off
   • Accelerate the vehicle to 10 km/h or more.

HINT.

• The ID codes are the same as recognition codes for the wireless transmitter and the engine immobilizer function Registering an ID code enables the smart access system with push button start, the wireless door lock control function and the engine immobilizer function to be operated
• Code registration is necessary when the certification ECU (smart key ECU assembly), ID code box (immobilizer code ECU), steering lock ECU, or key is replaced with a new one

1. Vehicles with the smart access system with push button start do not have a key slot. Therefore, hold the key close to the engine switch to register the key, as shown in the illustration below
   Fig 2: Identifying Communication Distance Between Engine Switch And Key

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. The following table shows ECU replacement and key registration procedures for cases in which a malfunctioning ECU has been identified through the troubleshooting of the smart access system with push button start

   HINT

   • The following procedures can be performed

     New key ID registration

     Additional key ID registration

     Key ID erasure

     All key ID erasure

     ECU code registration

   • If the customer has not brought all the registered keys, replacement of the ID code box (immobilizer code ECU) is also required.
   • A maximum of 7 keys can be registered.
     KEY ID CODE REGISTRATION PROCEDURE CHART
     
     

     Part to be Replaced	Condition		Procedure	Reference
     Certification ECU (Smart key ECU assembly)	Customer has brought all keys		1 Replace certification ECU (smart key ECU assembly)	-
     			2 Reregister all keys (New key ID registration)	PROCEDURE "B"
     	Some keys are lost	Key ID codes can be registered and erased	1 Erase key codes (Key ID erasure)	PROCEDURE "D"
     			2 Perform additional key registration procedure (Additional key ID registration)	PROCEDURE "C"
     			3 Replace certification ECU (smart key ECU assembly)	-
     			4 Reregister all keys (New key ID registration) HINT If some keys are not registered during the above steps, they will be disabled because they cannot be registered later	PROCEDURE "B"
     		Key ID codes cannot be either registered or erased	1 Replace certification ECU (smart key ECU assembly)	-
     			2 Replace ID code box (immobilizer code ECU)	-
     			3 Reregister all keys (New key ID registration) HINT If key codes cannot be erased or additional keys cannot be registered due to a malfunction in the certification ECU (smart key ECU assembly), replace the ID code box (immobilizer code ECU) and certification ECU (smart key ECU assembly) If some keys are not registered during the above steps, they will be disabled because they cannot be registered later	PROCEDURE "A"
     			4 ECU communication ID registration	PROCEDURE "G"
     	All keys are lost		1 Replace certification ECU (smart key ECU assembly)	-
     			2 Replace ID code box (immobilizer code ECU)	-
     			3 Reregister all keys (New key ID registration) HINT If key codes cannot be erased or additional keys cannot be registered due to a malfunction in the certification ECU (smart key ECU assembly), replace the ID code box (immobilizer code ECU) and certification ECU (smart key ECU assembly) If some keys are not registered during the above steps, they will be disabled because they cannot be registered later	PROCEDURE "A"
     			4 ECU communication ID registration	PROCEDURE "G"
     ID code box (Immobilizer code ECU)	Customer has brought at least 1 key		1 Replace ID code box (immobilizer code ECU)	-
     			2 Register recognition codes in ECUs (ECU code registration)	PROCEDURE "F"
     			3 ECU communication ID registration	PROCEDURE "G"
     	All keys are lost		1 Replace ID code box (immobilizer code ECU)	-
     			2 Replace certification ECU (smart key ECU assembly)	-
     			3 Reregister all keys (New key ID registration) HINT If some keys are not registered during the above steps, they will be disabled because they cannot be registered later	PROCEDURE "A"
     			4 ECU communication ID registration	PROCEDURE "G"
     Steering lock ECU	Customer has brought at least 1 key		1 Replace steering lock ECU	-
     			2 Register recognition codes in ECUs (ECU code registration)	PROCEDURE "F"
     	All keys are lost		1 Replace steering lock ECU	-
     			2 Replace certification ECU (smart key ECU assembly)	-
     			3 Replace ID code box (immobilizer code ECU)	-
     			4 Reregister all keys (New key ID registration) HINT If some keys are not registered during the above steps, they will be disabled because they cannot be registered later	PROCEDURE "A"
     			5 ECU communication ID registration	PROCEDURE "G"
     Power source control ECU	No condition required		Replace power source control ECU	-
     ECM	No condition required		1 Replace ECM	-
     			2 ECU communication ID registration	PROCEDURE "G"
     Key (for replacement)	Customer has brought at least 1 key		1 Using remaining key, erase lost key code (Key ID erasure)	PROCEDURE "D"
     			2 Register additional keys as necessary (Additional key ID registration)	PROCEDURE "C"
     	All keys are lost		1 Erase all key codes (All key ID erasure)	PROCEDURE "E"
     			2 Register all keys (New key ID registration) HINT If the customer brings lost keys at a later date, they can be registered using the additional key ID registration function	PROCEDURE "A"
     Key (for addition)	Customer has brought at least 1 key HINT When adding keys (Additional registration)		1 Register additional keys as necessary (Additional key ID registration)	PROCEDURE "C"

1. PROCEDURE "A"

   New key ID registration (when replacing the certification ECU (smart key ECU assembly) and ID code box (immobilizer code ECU), or when replacing the certification ECU (smart key ECU assembly), ID code box (immobilizer code ECU) and steering lock ECU)

   KEY ID CODE REGISTRATION PROCEDURE CHART
   
   

   Process	Procedure
   1 Start of registration	Connect the Techstream to DLC3 Turn engine switch on (IG) Enter the following menus Body Electrical / Smart Key / Utility / Smart Code Registration HINT The engine switch cannot be turned on (IG) more than 10 times After connecting the Techstream, turn the Techstream on while turning the driver side door courtesy light switch on and off repeatedly at 1 5-second intervals or less to continue key registration procedure
   2 Confirmation of ECU code	Perform operation according to prompts on the Techstream screen HINT Mode is automatically selected by the Techstream (new registration mode or add mode)
   3 Verification of unregistered key (1)	Hold unregistered key close to engine switch (For details, refer to  6"Description of Code Registration") Confirm that wireless door lock buzzer sounds once (short beep) Place unregistered key on driver's seat Confirm that wireless door lock buzzer sounds once (short beep)
   4 Registration of ID code	Perform operation according to prompts on the Techstream screen
   5 End of registration	Finish new key ID code registration
   (1) Repeat this process for each key which is to be registered for the vehicle Finish the procedure for each key within 30 seconds If the procedure for any of the keys has not been finished within the specified time, perform the registration procedure again from process 1 Make sure that only 1 key is in the cabin during the registration procedure If 2 or more keys are in the cabin simultaneously, electric waves will interfere with each other, preventing normal registration

2. PROCEDURE "B"

   New key ID registration (when replacing the certification ECU (smart key ECU assembly))

   ADDITIONAL KEY ID REGISTRATION PROCEDURE CHART
   
   

   Process	Procedure
   1 Start of registration	Connect the Techstream to DLC3 Turn engine switch on (IG) Enter the following menus Body Electrical / Smart Key / Utility / Smart Code Registration HINT The engine switch cannot be turned on (IG) more than 10 times After connecting the Techstream, turn the Techstream on while turning the driver side door courtesy light switch on and off repeatedly at 1 5-second intervals or less to continue key registration procedure
   2 Confirmation of ECU code	Perform operation according to prompts on the Techstream screen HINT Mode is automatically selected by the Techstream (new registration mode or add mode)
   3 Confirmation of all registered keys(1)	Hold unregistered key close to engine switch (For details, refer to  6"Description of Code Registration") Confirm that wireless door lock buzzer sounds once (short beep)
   4 Confirmation of ECU code	Perform operation according to prompts on the Techstream screen
   5 Verification of unregistered key(2)	Hold unregistered key close to engine switch (For details, refer to  6"Description of Code Registration") Confirm that wireless door lock buzzer sounds once (short beep) Place unregistered key on driver's seat Confirm that wireless door lock buzzer sounds once (short beep)
   5 Registration of ID code	Perform operation according to prompts on the Techstream screen
   6 End of registration	Finish new key ID code registration
   (1) Repeat this process for each key registered for the vehicle Finish the procedure for each key within 30 seconds If the procedure for any of the keys has not been finished within the specified time, perform the registration procedures again from process 1 If the key confirmation procedure for a key is performed, the security indicator light comes on and remains on until all the keys are confirmed (2) Repeat this process for each key which is to be registered for the vehicle Finish the procedure for each key within 30 seconds If the procedure for any of the keys is not finished within the specified time, perform the registration procedures again from 1 Make sure that only 1 key is in the cabin during the registration procedures If 2 or more keys are in the cabin simultaneously, electric waves will interfere with each other, preventing normal registration

3. PROCEDURE "C"

   Additional key ID registration

   KEY ID ERASURE PROCEDURE CHART
   
   

   Process	Procedure
   1 Start of registration	Connect the Techstream to DLC3 Turn engine switch on (IG) Enter the following menus Body Electrical / Smart Key / Utility / Smart Code Registration
   2 Confirmation of registered key(1)	Perform operation according to prompts on the Techstream screen HINT Mode is automatically selected by the Techstream (new registration mode or add mode) Hold unregistered key close to engine switch (For details, refer to  6"Description of Code Registration") Confirm that wireless door lock buzzer sounds once (short beep)
   3 Confirmation of ECU code	Perform operation according to prompts on the Techstream screen
   4 Verification of unregistered key(2)	Hold unregistered key close to engine switch (For details, refer to  6"Description of Code Registration") Confirm that wireless door lock buzzer sounds once (short beep) Place unregistered key on driver's seat Confirm that wireless door lock buzzer sounds once (short beep)
   5 Registration of ID code	Perform operation according to prompts on the Techstream screen
   6 End of registration	Finish additional key ID code registration
   (1) Perform this process for one of the keys registered for the vehicle Finish the procedure within 30 seconds If the procedure has not been finished within the specified time, perform the registration procedures again from process 1 (2) Repeat this process for each key which is to be registered for the vehicle. Finish the procedure for each key within 30 seconds If the procedure for any of the keys is not finished within the specified time, perform the registration procedures again from 1 Make sure that only 1 key is in the cabin during the registration procedures. If 2 or more keys are in the cabin simultaneously, electric waves will interfere with each other, preventing normal registration.

4. PROCEDURE "D"

   Key ID erasure

   HINT

   Erase all registered key codes except one.

   KEY ID ERASURE PROCEDURE CHART
   
   

   Process	Procedure
   1 Start of erasure	Connect the Techstream to DLC3 Turn engine switch on (IG) Enter the following menus Body Electrical / Smart Key / Utility / Smart Code Erasure
   2 Confirmation of registered key(1) HINT Select the key that will not be erased	Perform operation according to prompts on the Techstream screen Hold registered key close to engine switch (For details, refer to  6"Description of Code Registration") Confirm that wireless door lock buzzer sounds once (short beep)
   3 Confirmation of ECU code	Perform operation according to prompts on the Techstream screen
   4 Erasure of ID code	Perform operation according to prompts on the Techstream screen
   5 End of erasure	Finish key ID code erasure
   (1) Perform this process for one of the keys registered for the vehicle Finish the procedure within 30 seconds. If the procedure has not been finished within the specified time, perform the erasure procedures again from process 1

5. PROCEDURE "E"

   All key ID erasure

   HINT

   All the key codes registered in the vehicle are erased

   ECU CODE REGISTRATION PROCEDURE CHART
   
   

   Process	Procedure
   1 Start of erasure	Connect the Techstream to DLC3 Turn engine switch on (IG) Turn the Techstream on while turning driver side door courtesy light switch on and off repeatedly at 1 5-second intervals or less Enter the following menus Body Electrical / Smart Key / Utility / Smart Code Reset
   2 Confirmation of ECU code	Perform operation according to prompts on the Techstream screen
   3 Erasure of ID code	Perform operation according to prompts on the Techstream screen
   4 End of erasure	Finish key ID code erasure

6. PROCEDURE "F"

   ECU code registration

   ADJUSTMENT PROCEDURE AND ADJUSTMENT ANGLE
   
   

   Process	Procedure
   1 Start of registration	Connect the Techstream to DLC3 Turn engine switch on (IG) Enter the following menus Body Electrical / Smart Key / Utility / ECU Communication ID Registration
   2 Confirmation of registered key(1)	Hold registered key close to engine switch (For details, refer to  6"Description of Code Registration") Confirm that wireless door lock buzzer sounds once (short beep)
   3 Registration of ECU code	Perform operation according to prompts on the Techstream screen
   4 End of registration	Finish ECU code registration
   (1) Perform this process for one of the keys registered for the vehicle Finish the procedure within 30 seconds If the procedure has not been finished within the specified time, perform the erasure procedures again from process 1

7. PROCEDURE "G"

   ECU communication ID registration

   NOTE:

   • The ECU communication ID should be registered when the ID code box (immobilizer code ECU) and/or the ECM is replaced in order to match these ECU communication IDs.
   • The engine cannot be started unless the ECU communication IDs match.
   • After the registration, pressing the engine switch may not start the engine on the first try. If so, press the engine switch again.
   • Clear DTC B2799 (code for ECM immobilizer communication error) by either of the following:
     • Use the Techstream.
     • Disconnect the battery for 30 seconds.
   1. Using SST, connect terminals TC and CG of the DLC3.

      SST 09843-18040 

      Fig 3: Identifying DLC3 Terminals

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. Turn the engine switch on (IG) and leave it as is for 30 minutes

      HINT

      Do not start the engine.

   3. Turn the engine switch off and disconnect terminals TC and CG.
   4. Check that the engine starts and stays on for more than 3 seconds

1. DESCRIPTION

   HINT

   This registration section consists of two parts Read VIN and Write VIN

   1. Read VIN This process allows the VIN stored in the ECM to be read in order to confirm that the two VINs, the one provided with the vehicle and stored in the vehicle ECM, are the same
   2. Write VIN" This process allows the VIN to be input into the ECM If the ECM is changed, or the ECM VIN and vehicle VIN do not match, the VIN can be registered, or overwritten in the ECM by following this procedure.
2. READ VIN
   1. Confirm the vehicle VIN
   2. Connect the Techstream to the DLC3
   3. Turn the engine switch on (IG)
   4. Turn the Techstream ON
   5. Enter the following menus Powertrain / Engine / Utility/VIN/VIN Read
3. WRITE VIN
   1. Confirm the vehicle VIN
   2. Connect the Techstream to the DLC3
   3. Turn the engine switch on (IG)
   4. Turn the Techstream ON
   5. Enter the following menus Powertrain / Engine / Utility / VIN / VIN Write