HOW TO PERFORM VIN WRITING FOR ENGINE CONTROL MODULE, KOS-ECU AND ETACS-ECU
Follow the procedure below to register the VIN of the ETACS-ECU and the Keyless Operation System (KOS).VIN is stored in the engine control module (ECM), ETACS-ECU, and the KOS-ECU. If the VIN is improperly erased, the engine warning lamp or the keyless operation system warning indicator illuminates, and the diagnostic trouble code is displayed. When the ECM, ETACS-ECU, and the KOS-ECU are replaced, follow the procedure below to write the VIN.| note | - Chassis number writing of the OSS ECU and ESL ECU is described in "Keyless Operation System (KOS)". (Refer to GROUP 42B - On-vehicle Service <OSS ECU>
 .) - Perform the variant coding of the ECM when the VIN or the vehicle identification number is registered to the ECM.
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ENGINE KEY CODE AND VIN REGISTRATION STEPS FOR THE ECM <VEHICLES WITHOUT KOS>
Required Special Tools:
- MB992744: Vehicle communication interface-Lite (V.C.I.-Lite)
- MB992745: V.C.I.-Lite main harness A
- MB992747: V.C.I.-Lite USB cable short
- MB992748: V.C.I.-Lite USB cable long
- MB991958: Scan Tool (M.U.T.-III Sub Assembly)
- MB991824: Vehicles Communication Interface (V.C.I.)
- MB991827: M.U.T.-III USB Cable
- MB991910: M.U.T.-III Main Harness A (Vehicles with CAN communication system)
| caution | - Check that diagnostic trouble code No. P0603 "EEPROM fail" is not set. When diagnostic trouble code No. P0603 "EEPROM fail" is set, the ECM cannot store engine key code and VIN even if the engine key code and VIN are registered. If this diagnostic trouble code is set, troubleshoot the ECM and repair, and then register the engine key code and VIN to the ECM.
- Before connecting or disconnecting the scan tool (M.U.T.-III), turn the ignition switch to the "LOCK" (OFF) position.
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Connect the scan tool (M.U.T.-III) to the data link connector as follows.
| note | For details on how to use the scan tool (M.U.T.-III), refer to the "M.U.T.-III Owner's Manual." |
1. Start up the personal computer.
2. Connect special tool MB992747/M992748 or special tool MB991827 to special tool MB992744 or special tool MB991824 and the personal computer.
3. Connect special tool MB992745 or special tool MB991910 to special tool MB992744 or special tool MB991824.
4. Connect special tool MB992745 or special tool MB991910 to the data link connector.| note | When the special tool MB992745 is connected to the data link connector, the special tool MB992744 indicator light will be illuminated in a green color. |
5. Turn the power switch of special tool MB991824 to the "ON" position. <When using the special tool MB991824>| note | When special tool MB991824 is energized, special tool MB991824 indicator light will be illuminated in a green color. |
6. Start the M.U.T.-III system on the personal computer and turn the ignition switch to the "ON" position.
7. Select "F.A.S.T./IMMO/Keyless" button from the "System Select" screen. Then, select the applicable option code item and push the OK button.- The display of "Special Function" screen changes, depending on the contents of the option. For vehicles with KOS, select "IMMOBI&F.A.S.T." For vehicles without KOS, select "IMMOBI&Keyless."
8. Select "Special Function" on the next screen.
9. Select "ENG Key Code&Chassis No./VIN Reg." from the "Special Function" screen.
10. Push the OK button after "Key Code Registration to ECM" is displayed.
11. Push the OK button after "Completed. Press the OK button and move to Chassis No./VIN writing function." is displayed.
12. Enter the Chassis No./VIN of registering vehicle and push the OK button.
13. Push the OK button after "Chassis No./VIN Writing will start. Are you sure?" is displayed.
14. Return to the previous screen and "In Progress" is displayed at the lower-left corner on the screen.
15. Push the OK button after "Completed." is displayed.
16. Chassis No./VIN writing result is displayed.
17. Complete the scan tool (M.U.T.-III).
18. Disconnecting the scan tool (M.U.T.-III) is the reverse of the connecting sequence, making sure that the ignition switch is at the "LOCK" (OFF).
VIN REGISTRATION STEPS FOR THE ECM <VEHICLES WITH KOS>
Required Special Tools:
- MB992744: Vehicle communication interface-Lite (V.C.I.-Lite)
- MB992745: V.C.I.-Lite main harness A
- MB992747: V.C.I.-Lite USB cable short
- MB992748: V.C.I.-Lite USB cable long
- MB991958: Scan Tool (M.U.T.-III Sub Assembly)
- MB991824: Vehicles Communication Interface (V.C.I.)
- MB991827: M.U.T.-III USB Cable
- MB991910: M.U.T.-III Main Harness A (Vehicles with CAN communication system)
| caution | - Check that diagnostic trouble code No. P0603 "EEPROM fail" is not set. When diagnostic trouble code No. P0603 "EEPROM fail" is set, the ECM cannot store engine key code and VIN even if the engine key code and VIN are registered. If this diagnostic trouble code is set, troubleshoot the ECM and repair, and then register the engine key code and VIN to the ECM.
- Before connecting or disconnecting the scan tool (M.U.T.-III), turn the ignition switch to the "LOCK" (OFF) position.
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Connect the scan tool (M.U.T.-III) to the data link connector as follows.
| note | For details on how to use the scan tool (M.U.T.-III), refer to the "M.U.T.-III Owner’s Manual." |
1. Start up the personal computer.
2. Connect special tool MB992747/M992748 or special tool MB991827 to special tool MB992744 or special tool MB991824 and the personal computer.
3. Connect special tool MB992745 or special tool MB991910 to special tool MB992744 or special tool MB991824.
4. Connect special tool MB992745 or special tool MB991910 to the data link connector.| note | When the special tool MB992745 is connected to the data link connector, the special tool MB992744 indicator light will be illuminated in a green color. |
5. Turn the power switch of special tool MB991824 to the "ON" position. <When using the special tool MB991824>| note | When special tool MB991824 is energized, special tool MB991824 indicator light will be illuminated in a green color. |
6. Start the M.U.T.-III system on the personal computer and turn the ignition switch to the "ON" position.
7. Select "MFI" button from the "System Select" screen.
8. Select "Coding" on the next screen.
9. Select "Chassis No./VIN Writing" screen.
10. Select whether the vehicle is equipped with immobilizer system or not.
- For vehicles without KOS, select "With immobilizer (except OSS equipped model)".
- For vehicles with KOS, select "Without immobilizer or OSS equipped model".
11. Enter the chassis number in the New Chassis No. frame. Confirm the number and press the OK button.
12. Following the instruction on the screen, press the OK button to execute the chassis number writing.
13. Push the OK button after "Completed." is displayed.
14. On the writing result confirmation screen, check that the chassis number is written, and finish the registration.
VIN REGISTRATION STEPS FOR THE ETACS-ECU
Required Special Tools:
- MB992744: Vehicle communication interface-Lite (V.C.I.-Lite)
- MB992745: V.C.I.-Lite main harness A
- MB992747: V.C.I.-Lite USB cable short
- MB992748: V.C.I.-Lite USB cable long
- MB991958: Scan Tool (M.U.T.-III Sub Assembly)
- MB991824: Vehicles Communication Interface (V.C.I.)
- MB991827: M.U.T.-III USB Cable
- MB991910: M.U.T.-III Main Harness A (Vehicles with CAN communication system)
| caution | - Check that diagnostic trouble code No. P0603 "EEPROM fail" is not set. When diagnostic trouble code No. P0603 "EEPROM fail" is set, the ECM cannot store engine key code and VIN even if the engine key code and VIN are registered. If this diagnostic trouble code is set, troubleshoot the ECM and repair, and then register the engine key code and VIN to the ECM.
- Before connecting or disconnecting the scan tool (M.U.T.-III), turn the ignition switch to the "LOCK" (OFF) position.
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Connect the scan tool (M.U.T.-III) to the data link connector as follows.
| note | For details on how to use the scan tool (M.U.T.-III), refer to the "M.U.T.-III Owner’s Manual." |
1. Start up the personal computer.
2. Connect special tool MB992747/M992748 or special tool MB991827 to special tool MB992744 or special tool MB991824 and the personal computer.
3. Connect special tool MB992745 or special tool MB991910 to special tool MB992744 or special tool MB991824.
4. Connect special tool MB992745 or special tool MB991910 to the data link connector.| note | When the special tool MB992745 is connected to the data link connector, the special tool MB992744 indicator light will be illuminated in a green color. |
5. Turn the power switch of special tool MB991824 to the "ON" position. <When using the special tool MB991824>| note | When special tool MB991824 is energized, special tool MB991824 indicator light will be illuminated in a green color. |
6. Start the M.U.T.-III system on the personal computer and turn the ignition switch to the "ON" position.
7. Select "ETACS" button from the "System Select" screen.
8. Select "Coding" on the next screen.
9. Enter the chassis number in the New Chassis No. frame. Confirm the number and press the OK button.
10. Following the instruction on the screen, press the OK button to execute the chassis number writing.
11. Push the OK button after "Completed." is displayed.
12. On the writing result confirmation screen, check that the chassis number is written, and finish the registration.
VIN WRITING STEPS FOR ETACS-ECU AND KOS-ECU
Required Special Tools:
- MB992744: Vehicle communication interface-Lite (V.C.I.-Lite)
- MB992745: V.C.I.-Lite main harness A
- MB992747: V.C.I.-Lite USB cable short
- MB992748: V.C.I.-Lite USB cable long
- MB991958: Scan Tool (M.U.T.-III Sub Assembly)
- MB991824: Vehicles Communication Interface (V.C.I.)
- MB991827: M.U.T.-III USB Cable
- MB991910: M.U.T.-III Main Harness A (Vehicles with CAN communication system)
| caution | - Before the VIN registration to ETACS-ECU, check that the chassis Nos. of ECM and vehicle are matched.
- Check that diagnostic trouble code No. B2416 "ECU internal error" is not set. When diagnostic trouble code No. B2416 "ECU internal error" is set, the ETACS-ECU and the KOS-ECU cannot store the VIN even if the VIN is written. If this diagnostic trouble code is set, troubleshoot the immobilizer system or the KOS-ECU and repair, and then write the VIN to the ETACS-ECU or the KOS-ECU.
- Before connecting or disconnecting the scan tool (M.U.T.-III), turn the ignition switch to the "LOCK" (OFF) position.
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Connect the scan tool (M.U.T.-III) to the data link connector as follows.
| note | For details on how to use the scan tool (M.U.T.-III), refer to the "M.U.T.-III Owner’s Manual." |
1. Start up the personal computer.
2. Connect special tool MB992747/M992748 or special tool MB991827 to special tool MB992744 or special tool MB991824 and the personal computer.
3. Connect special tool MB992745 or special tool MB991910 to special tool MB992744 or special tool MB991824.
4. Connect special tool MB992745 or special tool MB991910 to the data link connector.| note | When the special tool MB992745 is connected to the data link connector, the special tool MB992744 indicator light will be illuminated in a green color. |
5. Turn the power switch of special tool MB991824 to the "ON" position. <When using the special tool MB991824>| note | When special tool MB991824 is energized, special tool MB991824 indicator light will be illuminated in a green color. |
6. Start the M.U.T.-III system on the personal computer.| note | If the M.U.T.-III system cannot be activated, disconnect and reconnect the negative battery terminal, and then proceed to the following operations within approximately 30 seconds. |
7. Select "F.A.S.T./IMMO/Keyless" button from the "System Select" screen. Then, select the applicable option code item and push the OK button.- For vehicles with KOS, select "IMMOBI&F.A.S.T." For vehicles without KOS, select "IMMOBI&Keyless."
8. Select "Coding" on the next screen.
9. Select "Chassis No. /VIN Writing" on "Coding" screen.
10. Push the OK button after the Chassis No./VIN written in the ECM is displayed.
11. Push the OK button after "Chassis No./VIN Writing will start. Are you sure?" is displayed.
12. Push the OK button after "Completed." is displayed.
13. Result of Chassis No./VIN writing is displayed.
14. Resister the other ID code. (Refer to the ID registration procedure manual.)
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