Hi - first post here so please be gentle!

Im posting on behalf of my daughter who owns a low mileage 6th Gen Fiesta Style Plus. On Friday she broke down on the motorway and was recovered home having spent 4 hours on the hard shoulder poor kid. She's a new and nervous driver so was understandably in a bit of a mess. she's lost confidence in the car. This is a complete pain as early January she needs to be a 3 and a half hour drive away for work without dad to support.

So - symptoms as follows: Leaving motorway services, the oil light flashed on momentarily. She made a mental note to pull into next services to check it out. Some miles later the car started losing power and running rough with a flashing oil light. At that point she pulled over and sought safety. Some time shortly before this all happened she went over a ramp and thought she heard an unusual 'thunk' but dismissed it as stuff moving in the boot so may be a red herring. It was peeing down at the time but no obvious signs of water ingress.

Listening to these symptoms I thought it sounded fatal so next day I checked the oil which was fine. Nothing obviously amiss. Gingerly I started the car and it sounds fine - shunted it onto our drive - again fine.

Surprisingly I got a local garage to book it in for diagnostics yesterday.  Drive to the garage was fine.

Diagnostics indicated a load of electrical faults that seemed to start about 40 miles before the car failed. I've been given a printout of some of the more significant faults but apparently there were many more. A close friend who's an ex vehicle technician reckons the faults point to the potentiometer on the accelerator pedal. The garage have advised that the faults don't point to anything obvious so they've cleared them and told us to drive it until it faults again then get it rechecked to see if it gives them any clues. BTW the fault on the alternator was a spike but only 14.2 V which apparently shouldn't cause a problem. 

Driving until it fails poses it's own problems in terms of recovery, and of course, it might not fail. I can't put her back in a car I don't trust.

I've listed the fault codes below so if anyone could shed some light to save us a shed load of stress it would be very much appreciated.

Thanks in advance and a merry Christmas,

P065:000-68gencrator control range performance

 

DIODA:S1-FFpats(passive control module)

 

BIB7-11-A8 rem restraint control module)

 

U0131:00-A8 evap temperature sensor

 

u0131:00-a8 lost coms with pscm

 

u0140:00-28 lost coms bith bem

 

u0151:00-a0 lost coms restraint control module

 

p1536:01 parking brake switch circuit

 

b1029:11-a0 accelerator pedal sensor

 

b1053:13-a0 fuel tank level sensor

 

b10d5:94-a0 pats antenna

 

b10d7:51- pats key

 

37 minutes ago, Curvy Bass said:

Hi - first post here so please be gentle!

Im posting on behalf of my daughter who owns a low mileage 6th Gen Fiesta Style Plus. On Friday she broke down on the motorway and was recovered home having spent 4 hours on the hard shoulder poor kid. She's a new and nervous driver so was understandably in a bit of a mess. she's lost confidence in the car. This is a complete pain as early January she needs to be a 3 and a half hour drive away for work without dad to support.

So - symptoms as follows: Leaving motorway services, the oil light flashed on momentarily. She made a mental note to pull into next services to check it out. Some miles later the car started losing power and running rough with a flashing oil light. At that point she pulled over and sought safety. Some time shortly before this all happened she went over a ramp and thought she heard an unusual 'thunk' but dismissed it as stuff moving in the boot so may be a red herring. It was peeing down at the time but no obvious signs of water ingress.

Listening to these symptoms I thought it sounded fatal so next day I checked the oil which was fine. Nothing obviously amiss. Gingerly I started the car and it sounds fine - shunted it onto our drive - again fine.

Surprisingly I got a local garage to book it in for diagnostics yesterday.  Drive to the garage was fine.

Diagnostics indicated a load of electrical faults that seemed to start about 40 miles before the car failed. I've been given a printout of some of the more significant faults but apparently there were many more. A close friend who's an ex vehicle technician reckons the faults point to the potentiometer on the accelerator pedal. The garage have advised that the faults don't point to anything obvious so they've cleared them and told us to drive it until it faults again then get it rechecked to see if it gives them any clues. BTW the fault on the alternator was a spike but only 14.2 V which apparently shouldn't cause a problem. 

Driving until it fails poses it's own problems in terms of recovery, and of course, it might not fail. I can't put her back in a car I don't trust.

I've listed the fault codes below so if anyone could shed some light to save us a shed load of stress it would be very much appreciated.

Thanks in advance and a merry Christmas,

P065:000-68gencrator control range performance

 

DIODA:S1-FFpats(passive control module)

 

BIB7-11-A8 rem restraint control module)

 

U0131:00-A8 evap temperature sensor

 

u0131:00-a8 lost coms with pscm

 

u0140:00-28 lost coms bith bem

 

u0151:00-a0 lost coms restraint control module

 

p1536:01 parking brake switch circuit

 

b1029:11-a0 accelerator pedal sensor

 

b1053:13-a0 fuel tank level sensor

 

b10d5:94-a0 pats antenna

 

b10d7:51- pats key

 

I have been out of the trade for a while but one thing I would check on any vehicle with multiple faults showing.  Check all the earthing lead you can find . It’s surprising the simplest of thing can cause various faults.

29 minutes ago, Robhonda said:

I have been out of the trade for a while but one thing I would check on any vehicle with multiple faults showing.  Check all the earthing lead you can find . It’s surprising the simplest of thing can cause various faults.

Thanks Rob. The garage tech specifically said he'd checked the earth, so can rule that out!

That is a CANBUS problem. So many different systems failing simultaneously makes any other diagnosis unlikely. The diagnostic system will not show it because it thinks it is fine but I would be fairly certain it will be in the Canbus gateway.

5 minutes ago, anon said:

That is a CANBUS problem. So many different systems failing simultaneously makes any other diagnosis unlikely. The diagnostic system will not show it because it thinks it is fine but I would be fairly certain it will be in the Canbus gateway.

Thank you.

Seek out an auto electrician. This is a practitioner's art. Show him the diagnostic readout and explain my suspicions. The local Ford dealership is likely to be out of its depth.

1 hour ago, Curvy Bass said:

Thanks Rob. The garage tech specifically said he'd checked the earth, so can rule that out!

👍 

What was the end result with this one?

Unfortunately a lot of posts never have the conclusion. Even if they scrapped the car it would be good if someone said eg. After many people looking at it and me spending loads of money it was not fixed so it went to the scrap yard. Or better still it was fixed and this is how……