HOW TO PERFORM CHASSIS NUMBER (CHASSIS NO.) WRITING FOR ENGINE-ECU, KOS-ECU AND ETACS-ECU






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 engine-ECU when the chassis No. or the vehicle identification number is registered to the engine-ECU.

ENGINE KEY CODE AND CHASSIS NUMBER (CHASSIS NO.) REGISTRATION STEPS FOR THE ENGINE-ECU <VEHICLES WITHOUT KOS>


caution
  • Check that diagnosis code No.P0603 "EEPROM fail" is not set. When diagnosis code No. P0603 "EEPROM fail" is set, the engine-ECU cannot store engine key code and chassis No. even if the engine key code and chassis No. are registered. If this diagnosis code is set, troubleshoot the engine-ECU and repair, and then register the engine key code and chassis No. to the engine-ECU.
  • Before connecting or disconnecting the M.U.T.-III, turn the ignition switch to the "LOCK" (OFF) position.



note For details on how to use the M.U.T.-III, refer to the "M.U.T.-III User’s Manual."
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note When the V.C.I.-Lite is connected to the diagnosis connector, the V.C.I.-Lite indicator lamp will be illuminated in a green colour.
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note When the V.C.I. is energized, the V.C.I. indicator lamp will be illuminated in a green colour.
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  • The display of "Special Function" screen changes, depending on the contents of the option. For vehicles with KOS, select "KOS&Immobi." For vehicles without KOS, select "Immobi&Keyless."
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CHASSIS NUMBER (CHASSIS NO.) REGISTRATION STEPS FOR THE ENGINE-ECU <VEHICLES WITH KOS>


caution
  • Check that diagnosis code No.P0603 "EEPROM fail" is not set. When diagnosis code No. P0603 "EEPROM fail" is set, the engine-ECU cannot store engine key code and chassis No. even if the engine key code and chassis No. are registered. If this diagnosis code is set, troubleshoot the engine-ECU and repair, and then register the engine key code and chassis No. to the engine-ECU.
  • Before connecting or disconnecting the M.U.T.-III, turn the ignition switch to the "LOCK" (OFF) position.



note For details on how to use the M.U.T.-III, refer to the "M.U.T.-III operation manual."
1.
2.
3.
4.
note When the V.C.I.-Lite is connected to the diagnosis connector, the V.C.I.-Lite indicator lamp will be illuminated in a green colour.
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note When the V.C.I. is energized, the V.C.I. indicator lamp will be illuminated in a green colour.
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  • For vehicles without KOS, select "With immobilizer (except OSS equipped model)".
  • For vehicles with KOS, select "Without immobilizer or OSS equipped model".
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CHASSIS NUMBER (CHASSIS NO.) REGISTRATION STEPS FOR THE ETACS-ECU <VEHICLES WITH KOS>


caution
  • Check that diagnosis code No.P0603 "EEPROM fail" is not set. When diagnosis code No. P0603 "EEPROM fail" is set, the engine-ECU cannot store engine key code and chassis No. even if the engine key code and chassis No. are registered. If this diagnosis code is set, troubleshoot the engine-ECU and repair, and then register the engine key code and chassis No. to the engine-ECU.
  • Before connecting or disconnecting the M.U.T.-III, turn the ignition switch to the "LOCK" (OFF) position.



note For details on how to use the M.U.T.-III, refer to the "M.U.T.-III operation manual."
1.
2.
3.
4.
note When the V.C.I.-Lite is connected to the diagnosis connector, the V.C.I.-Lite indicator lamp will be illuminated in a green colour.
5.
note When the V.C.I. is energized, the V.C.I. indicator lamp will be illuminated in a green colour.
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7.
8.


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  • For vehicles without KOS, select "With immobilizer (except OSS equipped model)".
  • For vehicles with KOS, select "Without immobilizer or OSS equipped model".
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CHASSIS NO. WRITING STEPS FOR ETACS-ECU AND KOS-ECU


caution
  • Before the chassis No. registration to ETACS-ECU, check that the chassis Nos. of engine-ECU and vehicle are matched.
  • Check that diagnosis code No. B2416 "ECU internal error" is not set. When diagnosis code No. B2416 "ECU internal error" is set, the ETACS-ECU and the KOS-ECU cannot store the Chassis No. even if the Chassis No. is written. If this diagnosis code is set, troubleshoot the immobiliser system or the KOS-ECU and repair, and then write the Chassis No. to the ETACS-ECU or the KOS-ECU.
  • Before connecting or disconnecting the M.U.T.-III, turn the ignition switch to the "LOCK" (OFF) position.



note For details on how to use the M.U.T.-III, refer to the "M.U.T.-III operation manual."
1.
2.
3.
4.
note When the V.C.I.-Lite is connected to the diagnosis connector, the V.C.I.-Lite indicator lamp will be illuminated in a green colour.
5.
note When the V.C.I. is energized, the V.C.I. indicator lamp will be illuminated in a green colour.
6.
7.

  • For vehicles with KOS, select "KOS&Immobi." For vehicles without KOS, select "Immobi&Keyless."
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