Parking Lights remaining on | FerrariChat

Parking Lights remaining on

Discussion in 'Technical Q&A' started by Tricycle, Mar 20, 2015.

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  1. Tricycle

    Tricycle Formula Junior

    Dec 21, 2004
    636
    LA Cnty 4,083sqmiles
    #1 Tricycle, Mar 20, 2015
    Last edited by a moderator: Sep 7, 2017
    Looking for some advice on how to solve my electrical issue.

    Problem: 328 '89 Parking and dash lights staying on after:

    50 Headlight stalk [Retractable headlights and outside lights control knob] is turned off (counterclockwise rotation on lever and lever lifted to up/off position)

    55 Parking lights Switch is off

    69 Front Fog Lights Switch is off

    Where would the problem most likely be?
    In the headlight stalk?
    At parking switch in the center console?
    Or at the fuse box. A relay or?

    I'm just looking for a direction before I start dissembling at the wrong place.

    Thanks
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  2. vracer

    vracer Formula 3

    Jun 23, 2014
    1,098
    NorCal
    Full Name:
    Richard
    That's an interesting one. I'm assuming that you must disconnect the battery, or does the 328 have a master switch? What happens when you reconnect?
     
  3. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
    Lifetime Rossa

    Jan 11, 2001
    26,931
    30°30'40" N 97°35'41" W (Texas)
    Full Name:
    Steve Magnusson
    #3 Steve Magnusson, Mar 20, 2015
    Last edited: Mar 20, 2015
    Try removing the relay with the "K" on the outer case (...006) - relay O. If the lights go out, as you put the relay back in see if you can feel if the relay is clicking "on" (= most likely a problem in the stalk knob switch) or if the relay is "off" but stuck in the closed position (= bad relay).
     
  4. Tricycle

    Tricycle Formula Junior

    Dec 21, 2004
    636
    LA Cnty 4,083sqmiles
    #4 Tricycle, Mar 21, 2015
    Last edited by a moderator: Sep 7, 2017
    The 328 comes with a quick disconnect that is accessible when you pop the hood.

    No change powering on and off.

    Thanks Steve.

    An inspection of Relay O showed an incorrect relay plugged into that location
    I had a new 332 015 006 in my spare kit and replaced it with that (someone had put a 332 014 113 in that slot).
    I've owned the car about 8 months and have been running that way...

    Results

    56 Parking light indicator is now lit on the instrument panel
    all other instrument lights (dash and console) are now off :)
    Side marker lights are off :)

    Now only front single light is lit in front
    Back tail lights are lit.
    So I guess like it is acting like a "on" parking switch now (except I can't turn it off)

    Note: Turning the parking switch on and off repeatedly doesn't cause the lights to change at all.

    Do you recommend attacking the stalk or concentrating on the parking switch in the console?
    From your previous post I am guessing the stalk?

    Thanks again
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  5. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
    Lifetime Rossa

    Jan 11, 2001
    26,931
    30°30'40" N 97°35'41" W (Texas)
    Full Name:
    Steve Magnusson
    Sounds more like parking light switch to me (having a ...113 in that location, rather that a ...006, isn't a disaster, but would cause the dash lights and more of the external lights to illuminate when the parking light switch was turned "on" -- which is part of what you had, but doesn't explain things being "on" when they shouldn't be). The dash lights now being "off" (with everything switched "off") is a good sign for the stalk knob switch being OK.

    Let me have a peek at your schematic to see if your (new) symptom can be investigated/diagnosed easily...
     
  6. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
    Lifetime Rossa

    Jan 11, 2001
    26,931
    30°30'40" N 97°35'41" W (Texas)
    Full Name:
    Steve Magnusson
    Just unplug the parking light switch to see if the parking light indicator (and those other external lights) goes out. Even though the parking light switch rocker may still have correct physical tactile feedback, like it is switching on-off, it could be electrically bad inside; or something in the central tunnel might be shorting two connections together - and just pulling the switch up should let you inspect that -- Good Hunting!
     
  7. Tricycle

    Tricycle Formula Junior

    Dec 21, 2004
    636
    LA Cnty 4,083sqmiles

    Thanks Steve for all the help.

    Into the tunnel I go!

    I will report back
     
  8. maurice70

    maurice70 F1 Rookie

    Jan 25, 2004
    4,333
    Sydney
    Full Name:
    maurice T
    I second the centre console switch.
     
  9. Motob

    Motob Formula 3
    Professional Ferrari Technician

    Nov 11, 2003
    2,387
    Frederick, Maryland
    Full Name:
    Brian Brown
    If you move the dip switch lever to the low beam or high beam position and the headlights come on, then the problem is related to the light switch in the lever or the relay.
    If not, then the problem is related to the console switch/relay.

    Brian B.
    Patrick Ottis Co.
     
  10. Tricycle

    Tricycle Formula Junior

    Dec 21, 2004
    636
    LA Cnty 4,083sqmiles
    Well it turned out being a defective center console parking light switch.

    After removing the tunnel (not too difficult, just time consuming the first time since I didn't want to break anything)

    I managed to unplug the parking switch and that turned off the parking lights.

    So it looks like a defective switch. Now I get to have fun disassembling the switch and repairing it.

    Thanks again for the help.
     

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