Repair Instruction: Initialization: Initialization

• *: for U140F, U250E, U341E Automatic Transaxle

HINT: 

The VIN is a 17-digit alphanumeric vehicle identification number. The Techstream is required to register the VIN.

1. Description

   HINT: 

   This registration service information 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, provided with the vehicle and stored in the vehicle's 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 procedure.
2. Read VIN
   1. Confirm the vehicle VIN.
   2. Connect the Techstream to the DLC3.
   3. Turn the ignition switch to ON.
   4. Turn the Techstream on.
   5. Enter the following menus: Powertrain / Engine and ECT / Utility / VIN / VIN Read.
3. Write VIN
   1. Confirm the vehicle VIN.
   2. Connect the Techstream to the DLC3.
   3. Turn the ignition switch to ON.
   4. Turn the Techstream on.
   5. Enter the following menus: Powertrain / Engine and ECT / Utility / VIN / VIN Write.

HINT: 

The key has 2 codes: the key code (immobiliser code) and the wireless code. Both of these codes need to be registered. Refer to the appropriate service information for the wireless code registration procedures.

1. When adding master keys or sub keys (Additional registration):
   1. Register the key code (immobiliser code) in the transponder key ECU.

      Target ECU	Refer to
      Transponder key ECU	Procedure "B"

2. When replacing the transponder key ECU (New registration):
   1. Register the key code (immobiliser code) in the transponder key ECU.

      Target ECU	Refer to
      Transponder key ECU	Procedure "A"

   2. Register the ECU communication ID between the new transponder key ECU and the ECM.

      Target ECU	Refer to
      ECM	Procedure "D"

3. When replacing the ECM:
   1. Register the ECU communication ID between the transponder key ECU and the new ECM.

      Target ECU	Refer to
      Transponder key ECU	Procedure "E"

4. When replacing the transponder key ECU and the ECM:
   1. Register the key codes (immobiliser codes) in the new transponder key ECU.

      Target ECU	Refer to
      Transponder key ECU	Procedure "A"

   2. Register the ECU communication ID between the new transponder key ECU and the new ECM.

      Target ECU	Refer to
      Transponder key ECU	Procedure "E"

5. When erasing the key code(s):
   1. Erase the key code(s) of lost key(s).

      Target ECU	Refer to
      Transponder key ECU	Procedure "C"

1. New key code registration (Procedure "A"):
   NOTE:

   This is the condition that no key codes are registered in the transponder key ECU.

   HINT: 

   • In this mode, a maximum of 2 master key codes can be registered.
   • New key codes must be registered with the battery connected. The ignition switch can be either on or off.
   • When a new transponder key ECU is installed, key codes must be registered in the transponder key ECU.
   AUTOMATIC KEY CODE REGISTRATION (NEW REGISTRATION)
   
   

   Procedure	Security Indicator Light Condition
   1. Start	Blinking HINT:  Until first key is inserted
   2. Insert the master key into the ignition key cylinder.	ON
   3. Techstream operation Select the following menu items: Body Electrical / Immobiliser / Utility / Key Registration HINT:  After completing the above operation, proceed to the next step in accordance with the prompts on the Techstream screen.	OFF for 1 second and then ON
   4. Remove the key and then push the Next button on the Techstream.	ON
   5. Insert the master key to be registered and then push the Next button on the Techstream.	OFF for 1 second and then ON
   6. Remove the key.	Blinking
   7. End (Procedure "E")

   HINT: 

   • A brief outline of key code registration procedure is shown above. For detailed information, refer to the Techstream screen.
   • When the engine immobiliser system is operating normally and the key is pulled out, the security indicator light blinks continuously.
   • If the new key code registration fails, code 2-1 will be output through the security indicator light. Trying to re-register an already registered key will cause code 2-2 to be output when the key is inserted. If the number of registered key codes exceeds the maximum limit, code 2-3 will be output through the security indicator light. The output details are shown as follows.
   Fig 1: Identifying Security Indicator Light Blinking Pattern

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Finish the automatic key code of registration mode. The automatic key code of registration mode can be forced to end when at least 1 key code (immobiliser code) for the master key has been registered.

   HINT: 

   • without the Techstream:

     Turn the ignition switch ON and off 5 times within 10 seconds using the master key that has already been registered.

   • with the Techstream:

     Follow the instruction on the Techstream screen to end new key code of registration mode.

1. Additional registration (Procedure "B"):

   HINT: 

   • A maximum of 5 key codes and 3 sub-key codes can be registered.
   • Registration mode will end if any step is not completed within the specified time.
   • When the ignition cylinder or the key cylinder set is replaced, remove the transmitter module from the original master key. Then install this transmitter module to a new key and use the new key as the master key. If necessary, use this master key to register other keys.
   NOTE:

   When the ignition key cylinder has been replaced, locking and unlocking doors are possible with the new master key's transmitter module (removed from the original master key). However, the new master key will not be able to lock and unlock doors through the door key cylinder. Keep the original master key. If the battery in the new master key's transmitter module fails, the original master key can be used to lock and unlock doors through the door key cylinder.

   ADDITIONAL REGISTRATION
   
   

   Procedure	Time to Complete Operation	Security Indicator Light Condition
   1. Start	-	Blinking HINT:  Until first key is inserted
   2. Insert the already registered master key into the ignition key cylinder and turn the ignition switch to ON.	-	OFF
   3. Techstream operation Select the following menu items: Body Electrical / Immobiliser / Utility / Key Registration HINT:  After completing the above operation, proceed to the next step in accordance with the prompts on the Techstream screen.	Within 120 sec.	ON
   4. Remove the master key.	Within 20 sec. HINT:  After the Techstream instruction	ON
   5. Insert the key to be registered in the ignition key cylinder.	Within 10 sec.	Blinking
   6. Wait for 60 sec. after the key is registered. HINT:  The security indicator light goes off.	-	OFF
   7. Remove the key.	-	Blinking
   8. End

   HINT: 

   • A brief outline of key code registration procedure is shown above. For detailed information, refer to the Techstream screen.
   • When the engine immobiliser system is operating normally and the key is pulled out, the security indicator light blinks continuously.
   • If the key code registration has failed in automatic key code registration mode, code 2-1 will be output through the security indicator light. Trying to re-register an already registered key will cause code 2-2 to be output when the key is inserted. If the number of registered key codes exceeds the maximum limit, code 2-3 will be output through the security indicator light. The details are shown in procedure "A".

1. Erase key codes (Procedure "C"):

   HINT: 

   • Performing this procedure will erase all key codes except for the master key, which is used for erasing the key codes. In order to use a key whose code has been erased, a new key code must be registered.
   • This procedure will be canceled if each step is not completed within the specified time.
   ERASING KEY CODE
   
   

   Procedure	Time to Complete Operation	Security Indicator Light Condition
   1. Start	-	Blinking HINT:  Until first key is inserted
   2. Insert the already registered master key in the ignition key cylinder and turn the ignition switch to ON.	-	OFF
   3. Techstream operation Select the following menu items: Body Electrical / Immobiliser / Utility / Transponder Code Erasure HINT:  After completing the above operation, proceed to the next step in accordance with the prompts on the Techstream screen.	Within 120 sec.	ON for 1 second and then OFF
   4. Remove the master key.	Within 10 sec. HINT:  After the Techstream instruction	Blinking
   5. End

   HINT: 

   • A brief outline of key code registration procedures is shown above. For detailed information, refer to the Techstream screen.
   • When the engine immobiliser system is operating normally and the key is pulled out, the security indicator light blinks continuously.

1. ECU communication ID registration (Procedure "D"):
   NOTE:

   • When the transponder key ECU is replaced, the ECU communication ID of the ECM must be registered into the transponder key ECU to match their ECU communication IDs.
   • The engine cannot be started unless the ECU communication IDs match.
   • Do not turn the ignition switch from ON to off 20 times or more before setting the ECU communication ID. Turning the ignition switch from ON to off 20 times or more will result in the engine not starting unless the transponder key ECU is replaced with a new one.
   • After the registration, turning the ignition switch to the START position may not start the engine on the first try. If so, turn the ignition switch to the START position again.
   • After the engine is started, erase DTC B2799 (code for ECM's immobiliser communication error) by either of the following:

     - Using the Techstream.

     - Disconnecting the battery for 30 seconds.

   1. Using SST, connect terminals TC and CG of the DLC3.
      • SST: 09843-18040 
      Fig 2: Connecting Terminals TC And CG Of DLC3

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. Turn the ignition switch to ON and leave the vehicle as is for 30 minutes.

      HINT: 

      Do not start the engine.

   3. Check that the engine can be started.
2. ECU communication ID registration (Procedure "E"):
   NOTE:

   The ECU communication ID should be registered when the ECM and transponder key ECU are replaced or when the ECM only is replaced in order to match the ECU communication ID.

   Procedure	Security Indicator Light Condition
   1. Start	OFF
   2. Insert an already registered key into the ignition key cylinder.
   3. Start engine
   4. Check that the engine starts and stays on for more than 3 seconds.
   5. End

HINT: 

The ECM learns various conditions and controls the automatic transaxle assembly and engine assembly according to those characteristics. Therefore, when the automatic transaxle assembly, engine assembly, or ECM has been replaced, it is necessary to reset the memory so that the ECM can re-learn.

Reset procedure is as follows.

1. Turn the ignition switch off.
2. Connect the Techstream to the DLC3.
3. Turn the ignition switch to ON and the Techstream on.
4. Enter the following menus: Powertrain / Engine and ECT / Utility / Reset Memory. Then, press "Next".
   WARNING:

   After performing RESET MEMORY, be sure to perform the ROAD TEST. Refer to ROAD TEST described earlier.

   HINT: 

   The ECM learns when the ROAD TEST is performed.

HINT: 

The ECM learns various conditions and controls the automatic transaxle assembly and engine assembly according to those characteristics. Therefore, when the automatic transaxle assembly, engine assembly, or ECM has been replaced, it is necessary to reset the memory so that the ECM can re-learn.

Reset procedure is as follows.

1. Turn the ignition switch off.
2. Connect the Techstream to the DLC3.
3. Turn the ignition switch to ON and the Techstream on.
4. Enter the following menus: Powertrain / Engine and ECT / Utility / Reset Memory. Then, press "Next".
   WARNING:

   After performing RESET MEMORY, be sure to perform the ROAD TEST. Refer to ROAD TEST described earlier.

   HINT: 

   The ECM learns when the ROAD TEST is performed.

HINT: 

The ECM learns various conditions and controls the automatic transaxle assembly and engine assembly according to those characteristics. Therefore, when the automatic transaxle assembly, engine assembly, or ECM has been replaced, it is necessary to reset the memory so that the ECM can re-learn.

Reset procedure is as follows.

1. Turn the ignition switch off.
2. Connect the Techstream to the DLC3.
3. Turn the ignition switch to ON and the Techstream on.
4. Enter the following menus: Powertrain / Engine and ECT / Utility / Reset Memory. Then, press "Next".
   WARNING:

   After performing RESET MEMORY, be sure to perform the ROAD TEST. Refer to ROAD TEST described earlier.

   HINT: 

   The ECM learns when the ROAD TEST is performed.

It is necessary to register the transmitter IDs in the tire pressure warning ECU when replacing a tire pressure warning valve and transmitter and/or a tire pressure warning ECU.

Prepare all transmitter ID data before starting registration.

1. Before registration
   1. When replacing the tire pressure warning ECU:
      • Read the registered transmitter IDs that are stored in the old ECU using the Techstream and note them down.
      • If reading stored transmitter IDs is impossible due to malfunctions of components such as the tire pressure warning antenna and receiver, remove the tires from the wheels and check the IDs located on the tire pressure warning valve and transmitters. Refer to PRECAUTION .
   2. When replacing a tire pressure warning valve and transmitter:
      • Make a note of the 7-digit number (transmitter ID) written on the tire pressure warning valve and transmitter.
        Fig 3: Identifying Tire Pressure Warning Valve And Transmitter

        Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      • The transmitter ID is written on the tire pressure warning valve and transmitter. It will not be possible to read the transmitter ID after installing the tire onto the wheel. Therefore, make a note of the transmitter ID before installing the tire.
      • When one tire pressure warning valve and transmitter is replaced, the transmitter IDs for all the tire pressure warning valve and transmitters must be re-registered. Before registering the transmitter ID of the new tire pressure warning valve and transmitter, check the Data List and record the all of the transmitter IDs that are already registered.

1. Set all tire pressures to the specified value(s). Refer to PRECAUTION .
2. Turn the ignition switch off.
3. Connect the Techstream to the DLC3.
4. Turn the ignition switch to ON.
5. Turn the Techstream on.
6. Enter the following menus: Chassis / Tire Pressure Monitor / Utility / ID Registration.
7. Follow the ID Registration steps displayed the Techstream screen.
8. Confirmation of transmitter ID registration.
   1. Enter the following menus: Chassis / Tire Pressure Monitor / Data List.
   2. Read the "ID Tire Inflation Pressure" values.
   3. Confirm that the tire pressure data of all tires are displayed on the Techstream.
      NOTE:

      • It takes about 2 or 3 minutes to display the updated tire pressure data. If the values are not displayed after a few minutes, perform troubleshooting according to the inspection procedure for DTCs C2121/21 to C2124/24. Refer to DTC C2121/21: No Signal from Transmitter ID1; DTC C2122/22: No Signal from Transmitter ID2; DTC C2123/23: No Signal from Transmitter ID3; DTC C2124/24: No Signal from Transmitter ID4; DTC C2181/81: Transmitter ID1 not Received (Test Mode DTC); DTC C2182/82: Transmitter ID2 not Received (Test Mode DTC); DTC C2183/83: Transmitter ID3 not Received (Test Mode DTC); DTC C2184/84: Transmitter ID4 not Received (Test Mode DTC) .
      • If the IDs have not been registered, DTC C2171/71 is set in the tire pressure warning ECU after 3 minutes or more.
      • If normal pressure values are displayed, the IDs have been registered correctly.
      • If the tire pressure values are not displayed after a few minutes, the IDs may be incorrect or the system may have a malfunction.
      • After all IDs are registered, DTC C2126/26 (Transmitter ID not Received) is set in the tire pressure warning ECU and the tire pressure warning light blinks for 1 minute and then comes on. When the tire pressure warning ECU successfully receives signals from all the transmitters whose IDs are stored in the ECU, DTC C2126/26 is cleared and the tire pressure warning light goes off.

1. Adjust all tire pressures to the standard tire inflation pressure, as indicated on the tire and loading information label on the vehicle.
2. Turn the ignition switch to ON.
3. Push and hold the tire pressure warning reset switch for 3 seconds or more so that the tire pressure warning light blinks 3 times.
   Fig 4: Identifying Tire Pressures Warning Light With Blinking Pattern

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Turn the ignition switch off.
5. Connect the Techstream to the DLC3.
6. Turn the ignition switch to ON.
7. Turn the Techstream on.
8. Enter the following menus: Chassis / Tire Pressure Monitor / Data List.
9. Check that initialization has been completed.
10. Confirm that tire pressure data of all wheels are displayed on the Techstream.
    Fig 5: Identifying DLC3 Connector Terminals

    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002