Technical Selespeed gearbox fault 2013 2.3 Multijet 130

[ajc9664]

Long story short, van starts and runs perfectly but gearbox error light on solid and can't select any gears.

I have scanned all modules with MES and the only fault found is "P0560-13 - Battery Voltage" in the Selespeed CFC348 Gearbox (Screenshot attached)

Fault won't clear even though the gearbox ecu reports same the voltage as other modules (12.2-12.3 ignition on, 13.5-13.6 engine running).

Now I am assuming it's a wiring fault, but I cannot find a wiring diagram for the facelift X250 with Marelli ECUs.

Any information gratefully accepted.

Thanks in advance
Andrew

 

[ajc9664]

Just found this https://www.fiatforum.com/downloads/ducato-m40-robotized-gearbox-training-manual.395/ which contains lots of useful information.

 

[ajc9664]

If anyone has a similar problem here is what I found and how I fixed it

No KL30 (permanent +12v) on pin27 of gearbox ecu, possibly the secret F27 fuse has blown.

Without a wiring diagram I have no idea of how this power is routed to the TCU so I ran a 10 amp fused wire directly from the fusebox to the ECU.

Problem fixed.