Page 1 of 2 12 LastLast
Results 1 to 10 of 11

Thread: Headlight problem

  1. #1
    Senior User
    Join Date
    Oct 2009
    Location
    aberdeen
    Posts
    2,892
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default Headlight problem

    My SR is only giving a dim light on the passenger bulb as though there is reduced voltage regardless of dip or main beam.

    Everything else electrical works perfectly on it. It is not the bulbs, I swapped them. I have checked all the fuses and tried it with all the relays removed, no difference. I have checked the light switch and wiring which look ok.

    I then noticed when I switch the lights on (even side lights) the oil pressure gauge goes backwards a little bit but perhaps it did it before? I have checked the wiring for it (it works as usual otherwise) and removed the instrument cluster, with all the connections off the lights still do the same so it isn't the instrument cluster. Any ideas please?

    Thanks

  2. #2
    Senior User
    Join Date
    Sep 2005
    Location
    brotton , saltburn by the sea
    Posts
    1,877
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    Relay ?

  3. #3
    Senior User
    Join Date
    Feb 2007
    Posts
    16,486
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    Check all the earths,particularly the gearbox to chassis one.

  4. #4
    Senior User
    Join Date
    Oct 2009
    Location
    aberdeen
    Posts
    2,892
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    I will check them all but they should be good and everything else including the voltmeter is fine.

  5. #5
    Senior User
    Join Date
    Aug 2008
    Location
    blackpool
    Posts
    3,414
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    Have you checked the back of the clocks.? The pcb tracks are fragile and can break easily causing electrical problems.

  6. #6
    Senior User
    Join Date
    Oct 2009
    Location
    aberdeen
    Posts
    2,892
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    I removed the clocks and checked but also used the lights with the instrument cluster disconnected, still the same. It is weird!

  7. #7
    Senior User
    Join Date
    Aug 2006
    Location
    I live inside your pants
    Posts
    4,527
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    What about the dim/dip relay under the dash. Normally screwed to the map shelf?

  8. #8
    Senior User
    Join Date
    Oct 2009
    Location
    aberdeen
    Posts
    2,892
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    Thanks, that's the next thing I was going to check, I won't know what is wrong with it visually but I can check the wires etc as a starting point.

    Do they appear on standard mk2 novas?
    If so I can swap over to test, I know they are not on my earlier novas.

  9. #9
    Senior User
    Join Date
    Oct 2009
    Location
    aberdeen
    Posts
    2,892
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    I have removed the wiring for the relay and there is no difference so it is not that and all earths are good, I couldn't find this type of relay anywhere in the Mk2 or in my mates 1987 merit, strange! I assume the fault is either a broken wire or a faulty switch. I will check the switch tomorrow by swapping with may mates.

    In the short term CAN I run with wires from the driver headlamp to the passenger one without damaging anything?

  10. #10
    Senior User
    Join Date
    Oct 2009
    Location
    aberdeen
    Posts
    2,892
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    I took a wire, one at a time from the working headlight and changed them, it turned out the brown wire was faulty. I gave up working out in the wiring diagram and took a common sense guess at it being earth. I assume the cable is broken somewhere so just fitted another earth and voila. Thanks for the ideas/help.

Posting Permissions

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