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The Radio Code
Guide · 1996–2010

How to find your Eclipse ESN serial

Eclipse's ESN lock engages when the unit loses power. The serial it wants is printed on the chassis and often echoed on screen next to the ESN prompt.

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What to look forFree guide

ESN code (6 characters)

047291

Example format

Six characters of the ESN code.

Everything on this page is free to read. Once you have the serial, you can key the code in yourself using the steps below — or have us calculate it.

Step one

Where to look

In rough order of how little work each option takes on a Eclipse ESN unit.

  1. 01

    On screen next to ESN

    Power the unit up. If the display reads ESN followed by a number, that is the serial and you do not need to remove anything.

  2. 02

    Chassis label

    Otherwise slide the unit out and read the six or seven digit serial from the label on the top or side of the case.

Got the serial?

We can turn it into the 4-digit unlock code

Optional — this guide stays free either way. If you would rather not chase the code down yourself, enter the serial and we return the digits straight away.

Get my code — $14.99Money-back if a code is wrong
Step two

Entering the code

However you got the four digits, this is how they go in.

  1. 1

    With the ESN prompt showing, enter the four digits on the keypad or with the rotary control.

  2. 2

    Press ENTER, or push the rotary control in, to confirm.

  3. 3

    The unit unlocks and returns to the last source.

Worth knowing

Tips from the workbench

  • Eclipse units in Suzuki and Isuzu vehicles use the same ESN scheme as the aftermarket versions.

  • Keep the unit powered while you enter the code; ESN entry restarts from scratch if it browns out.

Got the serial? Get the code.

$14.99 for the 4-digit unlock code · Money-back if a code is wrong

Enter my esn code (6 characters)
How to find your Eclipse ESN radio serial number — The Radio Code