somebody... Mazda 3 2005 ?

[itay]

Hello,

I like to know if there a situation that the cluster of this car
doesn't have a oscillator?
because when I open it I don't find it....

one more thing...
in the next time I do correction to this car the immobilizer will again
don't work and the car don't start?
it is the same chip maybe immo and mileage? (93c56)

tnx a lot to all

[hcip]

Every Dash has use a micro controller unit and this MCU is used a crystal to set the frequency
That's mean that Mazda3 dash has also a crystal oscillator

I have done many of this car for mileage rollback and doesnt encounter any problem

My procedure for doing this car is:

I remove the Batterry terminal before removing the dash
and remove the eeprom when reading and programming

But for my procedure, I always successfully done the works
without any problem

[itay]

tnx

it is safe to remove the eeprom?

and the eeprom 93c57 have connection to the immo?
because I cant start the car after the correction...

[itay]

Every Dash has use a micro controller unit and this MCU is used a crystal to set the frequency
That's mean that Mazda3 dash has also a crystal oscillator

I have done many of this car for mileage rollback and doesnt encounter any problem

My procedure for doing this car is:

I remove the Batterry terminal before removing the dash
and remove the eeprom when reading and programming

But for my procedure, I always successfully done the works
without any problem

tnx

it is safe to remove the eeprom?

and the eeprom 93c57 have connection to the immo?
because I cant start the car after the correction...