Encrypted Code Registration Using Ignition Key < Registration Using Scan Tool MB991958 (M.U.T.-III Sub Assembly) >

When the powertrain control module or the ETACS-ECU is replaced, or the ignition key is lost or additional keys are requested, the ignition key must be used to register encrypted codes.

Required Special Tools: 

• MB991958: Scan Tool (M.U.T.-III Sub Assembly)
  • MB991824: V.C.I.
  • MB991827: M.U.T.-III USB Cable
  • MB991910: M.U.T.-III Main Harness A

1. Connect scan tool MB991958 to the data link connector.
2. Turn the ignition switch to the "ON" position.
   Fig 1: Connecting Scan Tool To Data Link Connector

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3. Choose "IMMOBILIZER" from the "POWER TRAIN" tab.
   Fig 2: Identifying "IMMOBILIZER" Display Screen

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4. Enter the VIN code of the vehicle that is registered. Then, press "OK" button.
   Fig 3: Identifying "OK" Display Screen (1 Of 2)

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   Fig 4: Identifying "OK" Display Screen (2 Of 2)

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5. Select "Special Function."
   Fig 5: Identifying "Special Function." Display Screen

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6. Select "Key Registration (using key)."
   Fig 6: Identifying "Key Registration (Using Key)." Display Screen

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7. Enter the password of the vehicle, and press the OK button.
   Fig 7: Identifying Enter Password Display Screen

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8. Registration of the ignition key will be started.
   Fig 8: Identifying Registration Of Ignition Key Display Screen

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9. When the ignition key registration is finished, the additional key registration menu is displayed. To register the additional key, insert the key and turn the ignition switch to the "ON" position. Then, press the OK button. Press the CANCEL button to terminate the ignition key registration.
   Fig 9: Identifying Additional Key Registration Display Screen

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10. A maximum of eight ignition keys can be registered. When the registration of the eighth ignition key is finished, key registration completion menu is displayed. Press the OK button and finish the ignition key registration.
    Fig 10: Identifying Key Registration Completion Display Screen

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