Operation CHARM: Car repair manuals for everyone.

Part 1





INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION

1. PROCEDURES NECESSARY WHEN BATTERY TERMINAL IS DISCONNECTED/RECONNECTED





NOTICE:
It may not be possible to release the steering lock or start the engine when the battery voltage is low. If this occurs, initialization of the steering lock system is required. Programming and Relearning

2. PROCEDURES NECESSARY WHEN ECU OR OTHER PARTS ARE REPLACED













HINT
* *1: w/ Smart key System
* *2: w/o Smart key System
3. RESET MEMORY (U151E, U151F Automatic Transaxle System)

NOTICE:
* Perform the RESET MEMORY (AT initialization) when replacing the automatic transaxle assembly, engine assembly or ECM.
* The RESET MEMORY can be performed only with Techstream.
HINT
The ECM memorizes the condition that the ECT 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 memorize the new information.

Reset procedure is as follows.

(a) Turn the ignition switch off.

(b) Connect Techstream to the DLC3.

(c) Turn the ignition switch on (IG) and push the Techstream main switch on.

(d) Enter the following menu: Powertrain / Engine and ECT / Utility / Reset Memory. Then, press "Next".

(e) Perform the reset memory procedure from the main menu.

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

HINT
The ECM is learned by performing the ROAD TEST.

4. RESET TRANSAXLE COMPENSATION CODE (U760E Automatic Transaxle System)

NOTICE:
* If the following parts have been replaced, initialize the TCM and perform the following "Reset Memory" and "Perform Road Test to Allow TCM to learn" steps.
* - Valve body assembly
* - Shift solenoid valve SL3
* - Shift solenoid valve SL4
* - TCM
* The transaxle compensation code can only be initialize with the Techstream.
HINT
The TCM memorizes the condition that the ECT controls the automatic transaxle assembly according to those characteristics. Therefore, when the automatic transaxle assembly, or TCM has been replaced, it is necessary to reset the memory so that the TCM can memorize the new information. Reset procedure is as follows:

(a) Move the shift lever to N or P.

(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: Powertrain / ECT / Utility / A/T Code Reset.

(g) Press "Next" again to proceed.

NOTICE:
After the transaxle compensation code is initialized, perform the following "Reset Memory" and "Perform Road Test to Allow TCM to learn" steps.

(h) Press "Exit".

5. PERFORM ROAD TEST TO ALLOW TCM TO LEARN (U760E Automatic Transaxle System)

NOTICE:
Perform the following procedure while strictly observing all traffic laws and speed limits.

(a) Warm up the engine.

(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: Powertrain / ECT / Data List / Throttle Position from EFI.

(g) From a standstill, achieve highest possible speed with the accelerator pedal opened 15% or less. Keep the accelerator pedal angle steady while driving the vehicle.

HINT
"Throttle Position from EFI": 15% or less

(h) Repeat the previous step until shift shock no longer occurs.

(i) From a standstill, achieve highest possible speed with the accelerator pedal opened 25% to 35%. Keep the accelerator pedal angle steady while driving the vehicle.

HINT
"Throttle Position from EFI": 25% to 35%

(j) Repeat the previous step until shift shock no longer occurs.

6. RESET MEMORY (U760E Automatic Transaxle System)

NOTICE:
Reset Memory can be performed only with the Techstream.

HINT
The TCM (ECT) memorizes the vehicle conditions when controlling the automatic transaxle assembly and engine assembly.

Therefore, when the automatic transaxle assembly, valve body assembly, shift solenoid valve SL3, shift solenoid valve SL4, or TCM has been replaced, it is necessary to reset the memory so that the TCM can memorize the new information.

(a) 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.

(4) Turn the Techstream on.

(5) Enter the following menus: "Powertrain / ECT / Utility / Reset Memory". Then, press "Next".

NOTICE:
After performing Reset Memory, be sure to perform "Perform Road Test to Allow TCM to Learn" described earlier.

7. TRANSAXLE COMPENSATION CODE INPUT (U760E Automatic Transaxle System)

NOTICE:
Transaxle compensation codes are unique, 60-digit alphanumeric values printed on a QR label on the transaxle. If an incorrect transaxle compensation code is input into the TCM, shift shock may occur.

(a) Record the transaxle compensation code specified on the QR label.





HINT
The transaxle compensation code is imprinted on the QR label.

(b) Move the shift lever to N or P.

(c) Connect the Techstream to the DLC3.

(d) Turn the ignition switch to ON.

(e) Turn the Techstream on.

NOTICE:
Do not start the engine.

(f) Enter the following menus: Powertrain / ECT / Utility / A/T Code Registration.

(g) Select "Set Compensation Code".

(h) Register the compensation code.

(1) Press "Input".

(2) Manually input the transaxle compensation code. The code is a 60-digit alphanumeric value printed on the QR label. After inputting the code, press "OK".

(i) Check that the compensation code displayed on the screen is correct by comparing it with the 60-digit alphanumeric value on the QR label.

NOTICE:
If an incorrect transaxle compensation code is input into the TCM, shift shock will occur.

(j) Press "NEXT" to set the compensation code to the TCM.

HINT
* If the registration process fails, the compensation code may be incorrect. Check the compensation code again.
* If the attempted compensation code is correct, a problem with the wire harness or a bad connection with the DLC3 may cause a registration failure. Check the wire harness and the DLC3 connection. If no problem is found, the TCM may be malfunctioning. Check the TCM and repeat this operation.
(k) Press "EXIT".

8. TRANSAXLE COMPENSATION CODE INPUT (into new TCM)(U760E Automatic Transaxle System)

NOTICE:
Transaxle compensation codes are 60-digit alphanumeric values imprinted on a QR label on the transaxle. If an incorrect transaxle compensation code is input into the TCM, shift shock may occur.

HINT
The following operation is available for use with TCMs that can transmit the registered transaxle compensation code to Techstream.

(a) Move the shift lever to N or P.

(b) Connect the Techstream to the DLC3.

(c) Turn the ignition switch to ON.

(d) Turn the Techstream on.

NOTICE:
Do not start the engine.

HINT
The transaxle compensation code is imprinted on the QR label.

(e) Read the transaxle compensation code.

(1) Enter the following menus: Powertrain / ECT / Utility / A/T Code Registration.

(2) Select "Read Compensation Code".

(3) Press "Save".

(4) Press "Save" or "Overwrite".

HINT
Press "Overwrite".

NOTICE:
Do not use the code specified on the transaxle QR label even if the transaxle compensation code cannot be read using the Techstream. The code printed on an in-service transaxle may not match its current characteristics. Replace the TCM with a new one and perform a road test to allow the TCM to learn.

(5) Press "EXIT".

(6) Turn the ignition switch off.

(f) Replace the TCM.

(g) Set the transaxle compensation code.

(1) Turn the ignition switch to ON.

(2) Turn the Techstream on.

(3) Enter the following menus: Powertrain / ECT / Utility / A/T Code Registration.

(4) Select "Set Compensation Code".

(5) Press "Open".

(6) Press "Open" again to proceed.

(7) Press "Exit".

9. DESCRIPTION OF CODE REGISTRATION (Engine Immobiliser System (w/ Smart Key System))

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





10. PART REPLACEMENT AND KEY REGISTRATION (Engine Immobiliser System (w/ Smart Key System))

(a) 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 key system.

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 (immobiliser code ECU) is also required.
* A maximum of 7 keys can be registered.














11. KEY REGISTRATION (Engine Immobiliser System (w/ Smart Key System))

(a) PROCEDURE "A"

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





* *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 procedures again from process 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.

(b) PROCEDURE "B"

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





* *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.

(c) PROCEDURE "C"

Additional key ID 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.

(d) PROCEDURE "D"

Key ID erasure

HINT
Erase all registered key codes except one.





* *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.

(e) PROCEDURE "E"

All key ID erasure

HINT
All the key codes registered in the vehicle are erased.





(f) PROCEDURE "F"

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.

(g) PROCEDURE "G"

ECU communication ID registration

NOTICE:
* The ECU communication ID should be registered when the ID code box (immobiliser code ECU) 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.
* Erase DTC B2799 (code for ECM's immobiliser communication error) by either of the following:
* - Use Techstream.
* - Disconnect the battery for 30 seconds.
(1) Using SST, connect terminals TC and CG of the DLC3.

SST : 09843-18040





(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.

(h) PROCEDURE "H"

ECU communication ID registration

NOTICE:
The ECU communication ID should be registered when the ECM is replaced in order to match the ECU communication IDs.