Digiprog III Manuale introduttivo - Pagina 6

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Using the EEPROM menu.

On some of the vehicles you will come across, an eight pin

Eeprom chip will be used to store the vehicle data. These chips

hold vital information from the vehicle such as ignition and

immobiliser codes. Loss of this information could result in anything

from minor faults, to major faults involving the vehicle not starting

and having to be taken to the main dealer. This is why it is very

important to read and save the original information from the

Eeprom before programming, this way if any errors do occur you

can always return to the point you started.

The process of reading and saving this information is very simple.

The Eeprom chip itself will have a mask number printed across the

top of it, for example a widely used chip is a 93C46.

You can connect the chip to your DigiProg by using adaptor ST1

or ST4. Most chips are surface mount eeproms which will use ST1,

but the larger DIL chips will use ST4.

INTRODUCTION

Page 6