PARKING light switch repaired ! | FerrariChat

PARKING light switch repaired !

Discussion in 'Boxers/TR/M' started by Juri, Dec 26, 2010.

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  1. Juri

    Juri Formula Junior BANNED

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    Dear Ferraristi,

    Earlier this week, I have noticed that the “parking light” switch in the central console of my
    Testarossa is “on” and a green light is lit up on the dashboard… I tried a couple of times to depress it, but it would not stay disengaged in the “off” position (would not stick in when you press on it).

    To figure out what was wrong with it, I took the central console apart step-by-step to get to the body of that switch, as shown in the attached pictures:

    1) Turn the battery switch off
    2) Unscrew the bolt positioned on the bottom of a tray with a small hex-wrench
    3) Take out the tray
    4) Unscrew the screw in the middle of the bridge using a small Phillips-type screw driver
    5) Gently push the central switch panel assembly plate forward and up from below
    6) Remember to put towels on the leather trim to protect it
    7) Disconnect the switch contacts
    8) Unscrew a mounting ring of the switch underneath the panel assembly. Be carefull not to drop the plastic ring and an aluminum washer into the mid-console
    9) Use a small flat screwdriver to gently depress the “click-in” corner pins of a rectangular plastic trim part and push it up from under the panel assembly plate
    10) Push the body of the switch up through the panel assembly plate
    11) Using a flat screwdriver or a scraper carefully disassemble the switch body and pull it into two parts. Be careful not to lose the spring, which will literally “jump out” when you will be pulling the body of this switch apart.
    12) Observe a “tilting arm” containing a 1mm pin that should be positioned inside the “on-off” latching switch mechanism. The mechanism is similar to that used in click “on-off” ball pens. Push the retaining pin into the body of the switch using a small nail and gently tap it out
    13) Pull the “tilting arm” out and inspect it. As seen in the picture, it was slightly bent in the “neck” containing a 1mm pin, that should be positioned inside the “on-off” latching switch mechanism.
    14) After straightening the “tilting arm” in the neck region using small pliers, all parts of the switch were assembled back together, as shown in the attached pictures.
    15) The switch body was placed back into the central panel assembly.

    The whole procedure including time to figure out how to disassemble and fix the switch took no more than 30 min.

    If you encounter a similar problem, try to repair this switch yourself before spending lots of $$$.

    I will be glad to answer any questions you may have related to this experience.

    Cheers.
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    Last edited by a moderator: Sep 7, 2017
    Juri, Dec 26, 2010
    #1
    Col. Kurtz, fridolin_pt and blkdiablo33 like this.
  2. sparta49

    sparta49 F1 Veteran Owner

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    Great writeup and the pics make it so easy a caveman like me can do it.
     
    sparta49, Dec 26, 2010
    #2
  3. Melvok

    Melvok F1 World Champ Owner Silver Subscribed

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    Very informative indeed ! Super !
     
    Melvok, Dec 27, 2010
    #3
  4. BigTex

    BigTex Seven Time F1 World Champ Owner Rossa Subscribed

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    Wow!! Good work!!!
     
    BigTex, Dec 27, 2010
    #4
  5. Juri

    Juri Formula Junior BANNED

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    Juri, Dec 27, 2010
    #5
  6. blown daytona

    blown daytona Formula 3

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    Thanks for taking the time to post those pics
     
    blown daytona, Dec 28, 2010
    #6
  7. Hawaii

    Hawaii Formula Junior

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    Beautifully done! Thanks for helping many future Fchat guys out! Keep em coming!
     
    Hawaii, Dec 28, 2010
    #7
  8. marchambault

    marchambault Rookie

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    I seem to have the same problem in my 512 TR. The mecanism is the same so It shouldn't be problematic to fix.

    thanks.
     
    marchambault, Aug 4, 2011
    #8
  9. dontilgon

    dontilgon Formula Junior

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    Wow great write up.
     
    dontilgon, Aug 4, 2011
    #9
  10. marchambault

    marchambault Rookie

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    Just checking back in.

    I removed the parking light switch that was stuck in the open position from the dash of my 1993 512 TR. The operation is much, much simpler than in the Testarossa as described above.

    The actual switch in itself is the same so I opened and operated as per the instructions and put it back together. Everything works fine now.

    The only thing you need to remember is that it is more difficult to remove the steel arm and pin (on my 512 TR switch it was anyway) so I had to bend the arm while it was still in the socket, but still worked.

    Cheers,
     
    Last edited: Aug 10, 2011
    marchambault, Aug 10, 2011
    #10
  11. Philwozza

    Philwozza Formula 3

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    Great work there Juri. Thanks for putting it all together.

    P
     
    Philwozza, Aug 10, 2011
    #11
  12. Spasso

    Spasso F1 World Champ

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    Interesting. My switch is in the overhead console. (88.5 TR)
     
    Spasso, Aug 10, 2011
    #12
  13. kerrywittig

    kerrywittig Formula 3 BANNED

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    Ya done good Juri! Ya done good......Thanks! ;-)

    Complementary Me
     
    kerrywittig, Jan 14, 2012
    #13
  14. Zxgarage

    Zxgarage Formula Junior BANNED

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    Great pics...
    It is amazing how complicate the italians can make a simple task... :)
     
    Zxgarage, Jan 14, 2012
    #14
  15. homestrong

    homestrong Rookie

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    I have a 93 512TR and the parking switch doesn't latch.

    I've studied the comments/posts on this repair. I've removed the parking light switch ), and now I want to open up the switch itself, to adjust the clip inside.

    But I don't know how to open up this switch.

    I've attached two pics. Any suggestions on how to proceed?


    thanks!
    chris
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    Last edited by a moderator: Sep 7, 2017
    homestrong, Oct 12, 2014
    #15
  16. tvu

    tvu Formula 3 Silver Subscribed

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    I think if you look at Juri's picture above where the unit is disassembled, you will see there are the clips/plastic tabs(looks like mini ramps)/catch. I would assume the you would need to get multiple flat head screwdriver to push in those tabs simultaneously in order to pull the bodies apart. Those would correspond to the rectangular indents in your pictures.
     
    tvu, Oct 12, 2014
    #16
  17. sparta49

    sparta49 F1 Veteran Owner

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    just did the fix today. Needed three hands and 3 flat head screwdrivers
     
    sparta49, Mar 22, 2015
    #17
  18. Col. Kurtz

    Col. Kurtz Formula Junior

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    Great write-up!

    Thanks for taking the time to post easy to follow pics.
     
    Col. Kurtz, Mar 23, 2015
    #18
  19. UpNorth

    UpNorth Formula 3 Owner

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    +1!
     
    UpNorth, Mar 23, 2015
    #19
  20. sparta49

    sparta49 F1 Veteran Owner

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    The writeup was excellent. I would add this though, i had great difficulty pushing the panel forward and up on mine. I found it necessary to gently pull the side of the console to allow the panel to come up.
     
    sparta49, Mar 24, 2015
    #20
  21. chabch

    chabch Formula 3

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    Awesome writeup!
     
    chabch, Mar 24, 2015
    #21
  22. leslie_choo

    leslie_choo Formula Junior

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    I followed the write up step by step and got the switch fixed ! Great write up ! I later realized that the switch has a small light bulb but the light will never on. I guess the bulb is blown. Can anyone tell me where can I get the replacement bulb ? Thank u !
     
    leslie_choo, Jan 28, 2016
    #22
  23. turbo-joe

    turbo-joe F1 Veteran

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    normaly every bosch service has this
     
    turbo-joe, Jan 28, 2016
    #23
  24. 302Tim

    302Tim Formula 3

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    As I recall that's a universal switch--rather than lighting at the switch Ferrari wired it so the light on the main instrument console illuminates (only) and not the switch. Some have decided they wanted the switch to light so they ran a ground wire to the (-) side of the bulb, but I don't believe that's how Ferrari intended it.
     
    302Tim, Jan 28, 2016
    #24
  25. leslie_choo

    leslie_choo Formula Junior

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    Thank you Tim for the information ! Ok so the bulb should not be on/off on the switch I will leave it as it is .


    Sent from my iPhone using Tapatalk
     
    leslie_choo, Feb 13, 2016
    #25
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