Technical Error code P0603

[toffee]

So after the trails and tribulations of fixing my 2007 ducato back in October. See here

Anyone know who can test a Ducato ECU | FIAT Ducato

Hello As per the title. Anyone know who can test an ECU from 2007 Ducato or who knows a mobile mechanic who could look at one situated in North Milton Keynes? Currently got a non starter and the guy I have used is stumped. All replies appreciated

www.fiatforum.com

I came to start it again yesterday, after it had been stood for 4 weeks to the dreaded immobiliser symbol not going out.

On reading the codes I get p0603, which is an improvement on last time as there was no communication with the ECU then.

Engine turns over fine, just won't start.

All fuses are ok.

Any ideas where to start?

 

[rayc]

Any help? Check that the crash sensor has not been activated.

 

[toffee]

Any help? Check that the crash sensor has not been activated.

No that's fine.

 

[toffee]

Been messing around trying to find if there is another wiring problem.

Now when I turn the ignition on the fuel gauge is at zero and the warning light is flashing

 

[Communicator]

I think that your understanding may be improved, by reading the following similar recent thread.
https://www.fiatforum.com/threads/dashboard-failure.504888/#post-4717821
In particular see post #13 from @Anthony489. It is worth noting that most of the information including the fuel level, arrives at the instrument panel via the canbus.

 

[toffee]

I think that your understanding may be improved, by reading the following similar recent thread.
https://www.fiatforum.com/threads/dashboard-failure.504888/#post-4717821
In particular see post #13 from @Anthony489. It is worth noting that most of the information including the fuel level, arrives at the instrument panel via the canbus.

Thanks I'll take a look

 

[toffee]

Still in my quest to find the fault.

Anyone know how to open up these connectors. I have found a wire that is close to snapping where it goes into the metal pin.

Whether it is the problem or not I don't know but it needs fixing.

 

[toffee]

It's fixed, not by me I might add.

Had to enlist professional help and it took them 3 hours to find. Turned out to be a canbus fault on the ABS circuit. Also found a garage that knows what it's doing.

So a shout out to Marlins Motors in Bletchley