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How to Activate/Deactivate/Reset Engine Immobiliser for JCB Machine

When performing a JCB Electronic Service tool ECU update or any other function you will need to enable/disable or reset the immobilizer. Here are instructions on how to use the JCB ServiceMaster 4 diagnostic software to enable/disable or reset the immobilizer.

How to Install JCB ServiceMaster 4 on Win7/Win10

Procedures:

1.Make a note of the engine serial number on the engine labels

2.Make sure the machine is switched on and ServiceMaster is connected.

3.Navigate to the relevant machine engine setup tool:

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4.Navigate to the immobiliser tab. This will show the current status of the immobiliser:

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5.Navigate to utilities / high security unlock and select Copy CHALLENGE to Clipboard.

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6.Log into JDS and navigate to the unlock page. Select Extended Unlock

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7.Paste the challenge value and click submit.

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8.Select Immobiliser. Enter the engine serial number (refer to step 1). Enter any relevant information into the Reason Required field:

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9.Copy the response value provided.

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10.Paste the response value into the high security unlock page in ServiceMaster. Select Apply. The relevant fields will now be unlocked. Close the security unlock page.

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11.The options to Set or Un-set the Immobiliser will now be available.

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12.Setting the immobiliser will result in the following message:

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13.Un-setting the immobiliser will result in the following message:

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14.After either selection, the ECU will need to be restarted. Switch off the machine and wait for at least 2 minutes before performing any further operations on the machine.

15.If setting the immobiliser, please refer to machine instructions to pair the immobiliser devices.

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