Part 1

INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION

INITIALIZATION

1. PROCEDURES NECESSARY WHEN ECU OR OTHER PARTS ARE REPLACED

- *: for U140F, U250E, U341E Automatic Transaxle

2. VEHICLE IDENTIFICATION NUMBER (VIN) REGISTRATION
NOTE: The Vehicle Identification Number (VIN) must be input into a replacement ECM.
HINT: The VIN is a 17-digit alphanumeric vehicle identification number. The Techstream is required to register the VIN.

(a) 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, 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.
(b) 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.
(c) 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.
3. DESCRIPTION OF CODE REGISTRATION (Engine Immobiliser System)
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 wireless code registration procedures.

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

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

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

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

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

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

4. KEY REGISTRATION (Engine Immobiliser System)
(a) 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)

(b) 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.

5. REGISTRATION OF ADDITIONAL KEY (Engine Immobiliser System)
(a) 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

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".

6. ERASURE OF KEY CODE (Engine Immobiliser System)
(a) 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

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.

7. ECU COMMUNICATION ID REGISTRATION (Engine Immobiliser System)
(a) ECU communication ID registration (Procedure "D"):
NOTICE:
- 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

(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.
(b) 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.

8. RESET MEMORY (U140F Automatic Transaxle System)
NOTICE:
- Perform RESET MEMORY (AT initialization) when replacing the automatic transaxle assembly, engine assembly or ECM.
- RESET MEMORY can be performed only with the Techstream.
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.

(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON and the Techstream on.
(d) Enter the following menus: Powertrain / Engine and ECT / Utility / Reset Memory. Then, press "Next".
CAUTION: After performing RESET MEMORY, be sure to perform the ROAD TEST Road Test described earlier.
HINT: The ECM learns when the ROAD TEST is performed.

9. RESET MEMORY (U250E Automatic Transaxle System)
NOTICE:
- Perform RESET MEMORY (AT initialization) when replacing the automatic transaxle assembly, engine assembly or ECM.
- RESET MEMORY can be performed only with the Techstream.
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.

(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON and the Techstream on.
(d) Enter the following menus: Powertrain / Engine and ECT / Utility / Reset Memory. Then, press "Next".
CAUTION: After performing RESET MEMORY, be sure to perform the ROAD TEST Road Test described earlier.
HINT: The ECM learns when the ROAD TEST is performed.

10. RESET MEMORY (U341E Automatic Transaxle System)
NOTICE:
- Perform RESET MEMORY (AT initialization) when replacing the automatic transaxle assembly, engine assembly or ECM.
- RESET MEMORY can be performed only with the Techstream.
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.

(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON and the Techstream on.
(d) Enter the following menus: Powertrain / Engine and ECT / Utility / Reset Memory. Then, press "Next".
CAUTION: After performing RESET MEMORY, be sure to perform the ROAD TEST Road Test described earlier.
HINT: The ECM learns when the ROAD TEST is performed.

11. DESCRIPTION OF CODE REGISTRATION (Tire Pressure Warning System)
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.
(a) 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 Service Precautions.
(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.

NOTICE:
- 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.

12. REGISTER TRANSMITTER ID (Using Techstream) (Tire Pressure Warning System)
(a) Set all tire pressures to the specified value(s) Service Precautions.
(b) Turn the ignition switch off.
(c) Connect the Techstream to the DLC3.
(d) Turn the ignition switch to ON.
(e) Turn the Techstream on.
(f) Enter the following menus: Chassis / Tire Pressure Monitor / Utility / ID Registration.
(g) Follow the ID Registration steps displayed the Techstream screen.
(h) 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.
NOTICE:
- 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 C2121.
- 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.

13. INITIALIZATION PROCEDURE (Tire Pressure Warning System)
(a) Adjust all tire pressures to the standard tire inflation pressure, as indicated on the tire and loading information label on the vehicle.
(b) Turn the ignition switch to ON.
(c) Push and hold the tire pressure warning reset switch for 3 seconds or more so that the tire pressure warning light blinks 3 times.

(d) Turn the ignition switch off.
(e) Connect the Techstream to the DLC3.
(f) Turn the ignition switch to ON.
(g) Turn the Techstream on.
(h) Enter the following menus: Chassis / Tire Pressure Monitor / Data List.
(i) Check that initialization has been completed.

(j) Confirm that tire pressure data of all wheels are displayed on the Techstream.
NOTICE:
- Initialization normally completes within 2 or 3 minutes.
- If initialization did not complete successfully, DTC C2177/77 will be set after a vehicle speed 8 km/h (5 mph) or more continues for 20 minutes or more.
- Initialization can be terminated by connecting terminals TC and CG of the DLC3.

HINT:
- The initialization is completed when the "ID Tire Inflation Pressure" display shows the correct pressures.
- *: It may take about 2 or 3 minutes until the values are displayed. If the values are not displayed after a few minutes, perform troubleshooting according to the inspection procedure for DTCs C2121/21 to C2124/24 C2121.

14. OBTAIN ZERO POINT OF YAW RATE AND ACCELERATION SENSOR (When Using the Techstream) (Vehicle Stability Control System)
NOTICE:
- While obtaining the zero point, keep the vehicle stationary and do not vibrate, tilt, move, or shake it. (Do not start the engine.)
- Be sure to perform this procedure on a level surface (with an inclination of less than 1 degree).

(a) Clear the zero point calibration data.
(1) Turn the ignition switch off.
(2) Check that the steering wheel is centered.
(3) Check that the shift lever is in P (for automatic transaxle) or the parking brake is applied (for manual transaxle).
(4) Connect the Techstream to the DLC3.
(5) Turn the ignition switch to ON.
(6) Turn the Techstream on.
(7) Select the skid control ECU to clear the zero point calibration data using the Techstream. Enter the following menus: Chassis / ABS/VSC/TRAC / Utility / Reset Memory.
(8) Turn the ignition switch off.
NOTE: If the ignition switch is turned to ON for more than 15 seconds with the shift lever in P (for automatic transaxle) or the parking brake applied (for manual transaxle) after zero point of the yaw rate and acceleration sensor has been cleared, only the zero point of the yaw rate sensor will be stored. If the vehicle is driven under these conditions, the skid control ECU will store the zero point calibration for the acceleration sensor as not being completed. The skid control ECU will then also indicate this as a malfunction of the VSC system using the indicator lights.

(b) Perform zero point calibration of the yaw rate and acceleration sensor.
(1) Turn the ignition switch off.
(2) Check that the steering wheel is centered.
(3) Check that the shift lever is in P (for automatic transaxle) or the parking brake is applied (for manual transaxle).
NOTE: DTCs C1210/36 and C1336/39 will be recorded if the shift lever is not in P (for automatic transaxle) or the parking brake is not applied (for manual transaxle) C1210.
(4) Connect the Techstream to the DLC3.
(5) Turn the ignition switch to ON.
(6) Turn the Techstream on.
(7) Switch the skid control ECU to Test Mode using the Techstream. Enter the following menus: Chassis / ABS/VSC/TRAC / Utility / Test Mode.
(8) After the system enters Test Mode, keep the vehicle stationary on a level surface for 2 seconds or more.

(9) Check that the VSC OFF indicator light comes on for several seconds and then blinks in Test Mode.
HINT:
- The slip indicator light remains on during Test Mode because traction control operation is prohibited (The slip indicator light goes off when the VSC OFF switch is on).
- If the VSC OFF indicator light does not blink, perform zero point calibration again.
- Zero point calibration is performed only once after the system enters Test Mode.
- Calibration cannot be performed again until the stored data is cleared.

(10) Turn the ignition switch off and disconnect the Techstream.