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ford fiesta u2005 dtc
07-01-2023, 14:25 PM,
Post: #1
LFord  ford fiesta u2005 dtc
hi to all
i have problem with a 2012 ford fiesta.
car in limp mode abs lights on and got no rev counter.
its gave out a load of codes so im setting through them 1by1.
first is po336 and p0335 crank sensor circuit A.
sensor has been replaced twice and so has cam sensor ive checked wiring from pcm to ckp sensor its perfect but fault still exists.
when i do live data i can see rpm from flywheel with car running.
i know it could be reluctor ring but access is a joke the car has done 23000 genuine miles it has no rattles coming from the box at all.
but ive also got u2005 vehicle speed fault code as well.
there seems to be many scenarios for this code online going from ambient air to audio module to cranhkshaft circuit b? or not even a code at all.
if anyone has a clue i would be grateful for any info on what could be wrong or causing this issue.
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08-01-2023, 01:10 AM,
Post: #2
RE: ford fiesta u2005 dtc
Was the engine in this vehicle replaced? Or was the harness unplugged from multiple sensors and replugged?

Thanks and Rep Appreciated!
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08-01-2023, 13:30 PM, (This post was last modified: 08-01-2023, 16:50 PM by AROUNDLOCKS.)
Post: #3
LFord  RE: ford fiesta u2005 dtc
(08-01-2023, 01:10 AM)Tracshan Wrote:  Was the engine in this vehicle replaced? Or was the harness unplugged from multiple sensors and replugged?

hi tracshan
im not sure about loom
the car had a small bang too the front of the car and the airbags were not deployed about 14 months ago.
it went into a repair shop weather they messed with it i dont know but car has been running fine since then.
i will give you all the codes ive pulled from the car.
p0335 ckp sensor circuit A /no symptom pending
p0336 ckp sensor circuit A range performance/ Faulty signal intermittent
u0140 Lost communication with bcm/no symptom intermittent
u0156 lost comms with instrument ipc module/no symptom intermittent
B1A55 crash recordings /short circuit to ground or open circuit/intermittent
u0155 lost comms with instrument cluster ipc module/no symptom intermittent
u0121 lost comms with abs control module/ no symptom intermittent
u0155 lost comms with instrument ipc module/no symptom intermittent
u0415 invalid data  received from abs control module
u0415 invalid data received fron abs control module/event information/intermittent
u2005 vheicle speed/ message error/ intermittent.
like i said car had a bang to the front end  and was repaired so crash data fault code was not removed from the car afterwoods  but if airbags were not deployed i think they just left it thinking it was not recorded.
like i said tracshan that was over a year ago and car has been running fine the car has been sitting idle for a couple of months as my wife has been in hospital but i still went and started it up every few days on the drive.
i would be grateful if you could shed some light on it
i shall check abs module +&- wiring in the morning and bcm+&-. AND CANBUS
Thats why i like my 1987 mini its only got 4 fuses lol
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08-01-2023, 22:21 PM,
Post: #4
RE: ford fiesta u2005 dtc
Which module reporting which code?

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09-01-2023, 10:22 AM,
Post: #5
RE: ford fiesta u2005 dtc
(08-01-2023, 22:21 PM)Tracshan Wrote:  Which module reporting which code?

hi tracshan

abs u0140/ u0156

airbag rcm/ B1A55/    U0156

BCM
U0121
U0155
U0415
U2005

PSCM
U0401

FCDIM
U0155

THANK YOY
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10-01-2023, 17:16 PM,
Post: #6
RE: ford fiesta u2005 dtc
You should get the instrument Cluster repaired, very common problem due to lead-free solder being used from factory

also regarding crank sensor codes, you need to check magnetic strip on crankshaft sensor phonic wheel, maybe got damaged
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11-01-2023, 10:18 AM,
Post: #7
RE: ford fiesta u2005 dtc
At the very least, before reaching a conclusion about any specific module, check the CAN BUS integrity properly, you have quite a few U codes, other than the U codes, and the CKP code, you only have B1A55 in RCM. Was the vehicle in an accident? If yes, have you cleared the crash in RCM?

Thanks and Rep Appreciated!
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[+] 1 user says Thank You to Tracshan for this post
14-01-2023, 20:26 PM,
Post: #8
LFord  RE: ford fiesta u2005 dtc
hi to all
yes car had a small bang to front passenger airbags did not go off
car has been driving over a year now with no problems.
when i put diags on car i noticed crash data and cleared code and it has stayed off.
it hadnt  been cleared since the accident .
i have done canbus check 60 ohm at dlc and can hi lo voltage is correct 5v between the two and no short to ground or open circuit.
ive checked power and ground to abs module and thats fine.
im intrigued to know where cluster gets is rev counter signal from as i can see it on live data but not at instruments /but i dont have a wiring schematic for it as clocks are working but no rev counter.
i know focus had a cluster fault but i was not sure about fiesta.
i shall check reluctor on flywheel with borescope  as hole for sensor is set right back in the gearbox housing.
i shall keep you informed of the outcome as i can gather its quite a common problem but not alot of info for it.
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