Does anyone out there know of this issue - and more importantly a fix, please?
This relates to my 2018 Hymercar on Fiat Ducato Maxi chassis, 2.3 litre diesel 130bhp (remapped to 160bhp) and 40k miles otc.
It started as I was pulling up to some traffic lights, sudden ‘clank’ underneath like I’d driven over and thrown up a can or something, warning sound, red gearbox warning light on the dash, ’transmission unavailable’ message, loss of all power, engine still running ok, no gears forward or back.
So hazards on, switch off, restart, no problem, drove on and made it home 3hrs without further issue. it was a nice day weather wise, sun was out, no rain, no wipers.
Parked up for a couple of days, went to go out, started engine, red gearbox warning light again, ‘transmission unavailable’ message, unable to find gear to move from parking spot. Restart didn’t work this time.
Had to get recovery truck to transport camper van to Fiat Professional (FP) garage. FP decided ECU had ‘forgotten’ comfortmatic gear change capability so reprogrammed, re-taught ECU, took it for a test drive to check and that seemed to be that. I drove home happy, parked up for an overnight stay at the local body shop, picked it up the morning after and drove the four miles home no problem.
After two days on the drive the engine started fine but hey, guess what? Red light again, same transmission message and no gears!
And in the manner of intermittent problems, by the time the camper van has been flat-bed recovered and made it back to the FP garage for the second time, the warning light’s gone off and it starts and drives beautifully.
FP wants an OBD download of the now disappeared problem when the red light’s on and we’re now starting it every day or so, taking it for a drive and cannot reproduce the problem to catch it on diagnostic. It’s been at the garage a month now!
So we don‘t have a fix yet and I’m wondering if anyone in the Forum can offer any experience, enlightenment, answers or fixes?
Thanks and best wishes