Jump to content


Photo

Airbag And Seatbelt Warning Light

ODB DTC Seatbelt Airbag

  • Please log in to reply
5 replies to this topic

#1 digital_gee

digital_gee

    Newbie

  • Budding Enthusiast
  • Pip
  • 3 posts
  • Name: Gee
  • Ford Model: focus
  • Year: 2010
  • Location: Berkshire

Posted 25 April 2014 - 11:09 AM

Hi all I've been searching deep corners of the internet and have had no luck for this issue.

10 plate focus 1.6 zetec (100)

 

I was driving along one day no problems and have had no problems at all before. dropped of my mate at his house and grabbed something out of my boot at the same time, then pulled off and about 20 yards later both the airbag and seatbelt warning light came on...

 

over the next 2-4 days it was intermittent, then it became permanent for the last 2 weeks to date. When intermittent it sometimes was not on at all, other times it came on part way through the (short) journey, or it was on straight away and turning the engine off then back on didn't get rid of it.

 

I did the ford built in diagnostics check I've borrowed one of my mates cheap as chips bluetooth OBD readerand found these codes:-

Obd
U1900 - CAN Communication Bus Fault
U2023 Abnormal message from PCM

Ford onboard test:
Dtc #01 D900
 

I tried to reset them but couldn't.

 

the only other thing I have tried is disconnecting the battery for the car for about an hour or so (turning it off the on again idea)

 

does anyone know what it could be?

 

I would like to repair it myself (I'm great with repairing electronic side of things, it's part of my job).

 

Cheers,

 

Gee.



Have something to contribute?

Sign in or register to start a topic...

Sign up to FOC Premium Membership To Remove These Ads

#2 JW1982

JW1982

    Serial Poster

  • Budding Enthusiast
  • PipPipPipPip
  • 459 posts
  • Name: Wilco
  • Ford Model: Focus MK2 First Edition
  • Year: 2005
  • Location: Other / Non-UK

Posted 25 April 2014 - 11:52 AM

DTC codes starting with U---- indicate communication problems between the different control modules of the car.

U1900 – CAN communication bus fault.
U2023 - vehicle communication bus error.

Both DTC codes can be caused by various problems. In your case it may point one of the following problems:

* A defective RCM (Restraints Control Module) which controls the airbags and seatbelts.
* Defective wiring or a bad connection of the RCM.
* Defective instrument cluster. The Focus MK2/MK2.5 instrument clusters are known to have bad soldering connections of the circuit board. These bad soldering connections can result in a number of different DTC codes including the ones posted above.


Note that some diagnostic systems may also cause DTC communication codes. On some diagnostic systems the U1900 code shows up after reading/erasing codes. If this is the case the code can be ignored.

#3 digital_gee

digital_gee

    Newbie

  • Budding Enthusiast
  • Pip
  • 3 posts
  • Name: Gee
  • Ford Model: focus
  • Year: 2010
  • Location: Berkshire

Posted 25 April 2014 - 06:45 PM

thanks for that,

 

is there any guides for getting to these areas to check them?



#4 STEADS

STEADS

    Too much time on the boards

  • True Ford Enthusiast
  • PipPipPipPip
  • 884 posts
  • Name: NEIL
  • Ford Model: FOCUS 1.8 TDCI TITANIUM AND 2.0 TDCI
  • Year: 2009
  • Location: Cheshire

Posted 26 April 2014 - 09:54 AM

Try the connectors under the passenger seat every time I move my passenger seat as forward as poss together large items in the back the airbag warning comes on all I do is switch off and just push on the connectors and the light goes out and stays out till the next time the seat is moved forward all the way try it and see

#5 digital_gee

digital_gee

    Newbie

  • Budding Enthusiast
  • Pip
  • 3 posts
  • Name: Gee
  • Ford Model: focus
  • Year: 2010
  • Location: Berkshire

Posted 27 May 2014 - 03:04 PM

turned out to be the SRS/Airbag module that failed... there goes £460 :(



#6 jeebowhite

jeebowhite

    Resident Loon

  • Super Mod
  • 17,023 posts
  • Name: James
  • Ford Model: Sea Grey Mondeo MKIV 1.8TDCi 140ps Zetec
  • Year: 2007
  • Location: Kent
Contributor

Posted 27 May 2014 - 07:17 PM

Ouch, is that Ford prices or indie prices?



Have something to contribute?

Sign in or register to start a topic...


Not what you're looking for?

Register now, we have a huge community of enthusiasts to answer any questions you might have




Also tagged with one or more of these keywords: ODB, DTC, Seatbelt, Airbag

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users