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vp police dash question

Discussion in 'VN - VP Holden Commodore (1988 - 1993)' started by ringfeder3, Sep 6, 2018.

  1. ringfeder3

    ringfeder3 Member

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    I understand that bt 1 speedometer needles are not illuminated in the normal way and I understand why this option was included.

    Bt 1 vps which I drove back in the day had a constant source of illumination from above the speedo.

    When I bought mine, I had no dedicated bulb shining on the speedo, which as far as I recall, was unique to the bt 1.

    I pulled the gauge cluster out and there appears to be a small angular bracket (factory) fitted to the top of the cluster but there is no socket or wiring.

    My question is, if I wanted to wire up this as a light, where would I wire it to? I recall they were consistently illuminated.

    Being a bt 1, I am surprised the wiring isnt there ....
     
  2. h8tensv6

    h8tensv6 Active Member

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    Maybe previous owner after the cops disconnected it. The wiring and the plug could be down behind the cluster just hanging or been cut off.
     
  3. ringfeder3

    ringfeder3 Member

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  4. ringfeder3

    ringfeder3 Member

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    This is the bracket....
     
  5. ringfeder3

    ringfeder3 Member

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    doesnt appear to be any wiring behind the dash...
     
  6. ringfeder3

    ringfeder3 Member

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    Ok... here is what I have pieced together:

    There should be a socket fitted to the angled bracket (as pictured). From this there are supposed to run two wires (one +ve, one -ve) down to two of the three terminal located behind the tacho on the rear of the gauge cluster.

    Now I need to know:

    1. What type of socket was used in the bracket? I have test fitted several 'standard' Commodore ones without success. And...

    2. Which 2 of the 3 terminals are positive and negative?

    Advice appreciated...
     
  7. ringfeder3

    ringfeder3 Member

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  8. ringfeder3

    ringfeder3 Member

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    The three terminals can be seen running diagonally from top to bottom on the right of the photo...
     
  9. ringfeder3

    ringfeder3 Member

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    Solved I believe. Good information from Humphrey Instruments in Wollongong. Old mate has put together a bulb and loom with fitting instructions for $18... Remembered them from the old days!
     
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  10. Brettly-2008

    Brettly-2008 Active Member

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    What's the reason for the downward illumination (as well as back-lighting) for the police cluster? I remember EA and EB used a down light and back-lighting back in the same era and I though it was a bit dated compared to VN-VP's crisp green design.
     
  11. ringfeder3

    ringfeder3 Member

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    So they could be driven at night without lights but still have an illuminated speedo. Sometimes a stealthy response to a job is necessary...
     
  12. Brettly-2008

    Brettly-2008 Active Member

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    That makes sense.
     
  13. Lacksballs

    Lacksballs Active Member

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    Now there is just speed cameras! You just get the bill in the post.
     

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