MB W203 EZS problem dont start!

[einet]

Hello,

I have a EZS from a W203, that i but key in -> EZS unlock and the let it turn
But no signal on starter!.
I confirm that ECU have start autorization is OK and don?t have any errors, but motor not start!
When i put 12v to starter from the car he starts without problems!

How can give me some help to resolve this problem?

einet

[wsc]

in many cases the problem is the key

[einet]

How i know that is the key or ezs or dumps?
the car have 2 keys and both are damaged? strange!

the car is not near to me i must drive all the time.

[wsc]

yes is strange if and the second key has the same behavior, in this case you must make some tests
Good luck

[arvedo]

friend is very easy in engine compartment, starter relay bridge, lack 12valternativo feeding place and drive to perfection: Arriba:
this is in the engine compartment module sam

[einet]

How have schematics for this ?

EZS -> SAM -> ECU?

thanks

[obdmaster]

I had similiar problem turned out to be fuse in front sam, your keys are turning steering lock is disengaging , engine ecu is receiving signal from ezs. So keys and EZS are good

So engine ecu sends out earth to starter relay in front sam module. to pull relay in to send +12ve out to starter motor.