User Tag List

Thanks Thanks:  0
Likes Likes:  0
Results 1 to 5 of 5

Thread: Multiple light failure

  1. #1
    New Member
    Join Date
    Nov 2009
    Location
    selby
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default Multiple light failure

    Hi all, i'm having problems with a cdti Vectra 05 that my parents bought recently.
    The following lights don't work (even after replacing the bulbs)
    o/s inicator
    o/s main beam
    o/s side light
    n/s dipped beam

    I hav replaced the bulbs but not one of them works with a new bulb, are these controlled by seperate fuses or relays, or is something ore serious like a contrlol module or ecu that may need replacing?

    Any help much appreciated

    Thanks

  2. #2
    Full Member Robsey's Avatar
    Join Date
    Dec 2006
    Location
    North East Cheshire
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    14 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats

    Vehicle : Vectra C

    Trim : Energy

    Engine : Z19DTH

    Year : 2005

    Mileage : 131,000

    Default

    They are all controlled via the Body Control Module, however this takes some digitized signals from the CIM (Collumn Integrated Module).
    The CIM takes all the imputs associated in the region of the steering wheel including the binnacles.

    First Off, you could check the fuses in the end of the dash (passenger side).
    These fuses are all pre-fixed FI (eff-eye) to signify fuses for instruments.

    You need to check Fuses FI1, FI7, FI12 and FI19 as these all apply 12v feed to the body control module...
    The BCM acts as the junction box, from where all light switching and instrument voltages are distributed from.

    Also check the large fusebox next to the battery under the bonnet.

    If they bought the car recently, then shouldn't this be fixed under the warranty of the sale if bought from a dealer...if bought privately then ignore the last comment.

  3. #3
    New Member
    Join Date
    Nov 2009
    Location
    selby
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default

    Thanks Robsey for your quick reply.

    Looking at the schematics in the haynes manual, it appears that the lights are fed by an 'under bonnet control unit', which is itself fed via a canbus line from the body control unit.The manual fails to expalin where either of these are lcoated, do you know where they are?

    Assuming I can get to these modules, is there a way to test their function with a multi-meter?

    The computer reports that all the above mentioned bulbs are faulty, as well as the alarm. Does this indicated the body control unit is more likely over the in-engine unit or is it impossible to tell?

    As for the fuses, they all look ok. I am a little confused though - all the fuses in the passenger comartment, engine bay and boot are simply labelled F. ALso F19 doesn't exist? (the socket is blank, no terminals to plug a fuse into).

    MAny thanks

  4. #4
    Full Member Robsey's Avatar
    Join Date
    Dec 2006
    Location
    North East Cheshire
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    14 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats

    Vehicle : Vectra C

    Trim : Energy

    Engine : Z19DTH

    Year : 2005

    Mileage : 131,000

    Default

    The Under Bonnet Unit is next to the battery in a big black plastic case.

    The body control module is behind the glove box...this plugs into the back of the end of dash fusebox.
    To find it, you would need to remove the glove box...the BCM is the tucked up against the left wall up near the bulk-head

    I do find the haynes manual VERY limited, as it barely touches upon any kind of electical system...it does not mention the presence of the Body Control Module, Collumn Integrated Module and any of the Fuse Boxes / Control Units...except in the schematic diagram section.

    Bizarrely it doesn't even mention the presence of the radio / head unit nor any of the display units.

    The schematics should show assembly numbered 26 I think...this is known by Vauxhall as A15 or the BCM...There are 78 wires on the typical BCM, which is used to control voltage outputs to the lights, interior lights, alarm system, central locking system, check control sensors,rear electronic centre (boot fusebox) and infotainment system...
    it takes its inputs from the collumn integrated module, ABS module, Drivers door module, passenger door module Underbonnet electronics centre

    If Fuse No FI19 doesn't exist, then check FI17.

    Each fuse box may sat F1, or F2 etc but as there are three fuse boxes, then strictly speaking there has to be a second letter identifying which fuse box you are referring to.

    Again Haynes isn't aware of this fact.

    Hope this helps

  5. #5
    Full Member Robsey's Avatar
    Join Date
    Dec 2006
    Location
    North East Cheshire
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    14 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats

    Vehicle : Vectra C

    Trim : Energy

    Engine : Z19DTH

    Year : 2005

    Mileage : 131,000

    Default

    You could go back to real basics...
    Have you checked the actual plug connectors on the lights for damage or corrosion.?

    A fault would mean either an open circuit or abnormal circuit resistance.

    A fault is also often flagged up when led bulbs are used, as they have insufficient internal resistance.

    Also have you checked the light switch plug?

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Bad mot day engine/emissions light failure
    By monty2000 in forum Troubleshooting
    Replies: 23
    Last Post: 4th September 2012, 20:02
  2. Bulb failure light on dash - always on.
    By Dal5band in forum Bodywork & Interior
    Replies: 7
    Last Post: 15th December 2011, 14:23
  3. bulb failure light
    By paulzvectra in forum Vectra C / Signum Car Chat
    Replies: 7
    Last Post: 15th July 2009, 20:03
  4. Bulb Failure Light While Towing
    By cerbrious in forum Electrical & ICE (including SatNav)
    Replies: 14
    Last Post: 28th April 2009, 13:03
  5. bulb failure light
    By billyyoung in forum Vectra C / Signum Car Chat
    Replies: 1
    Last Post: 4th November 2007, 16:10

Visitors found this page by searching for:

Nobody landed on this page from a search engine, yet!

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •