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My friends call me, Top
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It is tough to drive....
....home in the dark !
My 924S headlights would not come on or even pop-up tonight. It made for a nail biting ride home
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Matt '87 924S |
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10-30-2009, 03:29 PM
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Registered
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If you have one of the normal 924/944 motors, you can take the cap off the motor and turn the gear by hand to open them up if they aren't popping up.
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10-30-2009, 03:32 PM
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My friends call me, Top
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Yeah, I did that, but even manually opened the lights wouldn't come on...just the markers and tail lights. I didn't see any blown fuses.
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Matt '87 924S |
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10-30-2009, 04:15 PM
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Registered
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Oh gotcha, you mean the actual lights themselves. Did you check the switch? Check the contacts? No blown fuse or relay could be a bad switch.
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10-30-2009, 04:16 PM
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Automotive Necromancer
Join Date: Nov 2006
Location: Beantown, MA
Posts: 1,544
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check switch
Yep, It sounds like the switch. Ohm out the pins and check the power going to and from it. My switch died at highway speed at night in the middle of nowhere. A pair of wires with alligator clips on them got me the rest of the way home. The switch itself is pretty complex and they do tend to wear out.
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There may be nothing quite as expensive as a cheap Porsche: Ruby Red 84 928S : White 87 924s 2.5L NA (Blinky) M44/07-43H10676 spoiler delete - 046/2B - Belts 9/12, Clutch and OC seals 8/08 andd Red 94 Del Sol: Please put your Make, Model and Year in Sig. Try not to break more than you fix. |
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10-30-2009, 06:22 PM
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My friends call me, Top
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OK, I finally got a chance to play with the switch. I took it all apart and cleaned thoroughly. Yes, they are complex...a few choice words later it was back together.
The lights pop-up now, but still no lights. All fuses are good.
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Matt '87 924S |
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11-06-2009, 12:06 PM
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Automotive Necromancer
Join Date: Nov 2006
Location: Beantown, MA
Posts: 1,544
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on track
Well, rebuilding the switch and getting some action is a step in the right direction. You will need to trace the circuit. Try the "current flow Diagrams"
They are not perfect, but they are pretty darn good and you can usually get by with them. Caveat: the color codes may be off and they are for 944s, but they will get you there. Pelican Parts: Porsche 924/944 Electrical Diagrams Check current going to relay, then check the Headlight relay. Of course, make sure the headlights aren't burned out to begin with. If you can't get high or low beams...check the Hi low relay (I THINK you have one). It is a matter of making friends with your multimeter and / or your test light and tracing the wires and power. I find removing the drivers seat lets me get in there without wrenching my back. Bonus is you get to clean your carpet under the seat! Work from one end or the other. Either forward from the fuse box or back from the headlights. Just be glad you don't have a opening and closing problem, they can be really aggravating.
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There may be nothing quite as expensive as a cheap Porsche: Ruby Red 84 928S : White 87 924s 2.5L NA (Blinky) M44/07-43H10676 spoiler delete - 046/2B - Belts 9/12, Clutch and OC seals 8/08 andd Red 94 Del Sol: Please put your Make, Model and Year in Sig. Try not to break more than you fix. |
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11-06-2009, 12:44 PM
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My friends call me, Top
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Good advice Sol...TY
I went out and checked the hi beams (on the car...get your mind outta the gutter..LOL). They come on, but do not click on. In other words I have to hold the stalk back and they will be on, if I let it go they are off. With your help I believe we are narrowing down the culprits.
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Matt '87 924S |
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11-06-2009, 01:13 PM
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Automotive Necromancer
Join Date: Nov 2006
Location: Beantown, MA
Posts: 1,544
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Don't rule out the simple things
Seriously, check the headlights...Sometimes the blow in pairs. Another likely culprit is the headlight connectors themselves. They just go with age. And , Of course, Grounds. The biggest killer of the switches is that there is so much power running through them. To alleviate this, you could set up some wiring and generic relays. I haven't done it yet, but it is supposed to give you brighter headlights and decrease the load on your electrical system. Of course, you have to get them working first. My rebuilt switch lasted a month or so, therefore, look around for a replacement now that you have time.
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There may be nothing quite as expensive as a cheap Porsche: Ruby Red 84 928S : White 87 924s 2.5L NA (Blinky) M44/07-43H10676 spoiler delete - 046/2B - Belts 9/12, Clutch and OC seals 8/08 andd Red 94 Del Sol: Please put your Make, Model and Year in Sig. Try not to break more than you fix. |
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11-06-2009, 03:48 PM
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Garage Helper
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Also check your steering stalk switch (Turn signals and hi/lo beam light switch) as the power can be traced through that also.
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78-924 traded for 80-931 traded for 84-944 traded for 85.5-944 (7th one now).  UAV-M1 (Urban Assault Vehicle - Model 1) Bless the lowered, and pass the nitromethane. Pedal to the metal till you see the gates of hell then brake NLA - No longer available is a four letter word |
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11-06-2009, 04:42 PM
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My friends call me, Top
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It is definitely the switch.
I replaced both headlights....still nothing. I took that infernal miniature switch apart again and noticed that one of the prongs looked a little melted at the base plastic. I trimmed the melted part away and it seemed that that prong had withdrawn away from where it needed to be to make contact on the switch. I gently tapped the prong with a hammer until it was flush, put the switch back together and it works ! Yay, lights again ! Thanks guys for all the help !!
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Matt '87 924S |
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11-07-2009, 07:46 AM
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Automotive Necromancer
Join Date: Nov 2006
Location: Beantown, MA
Posts: 1,544
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Whoopee!
You Rock! 2 smileys and a cool!
  Seroiusly: a rebuilt switch is usually borrowed time, look around for another one while it is not an issue. Also check the wires and connections to be sure there is not some sort of short that caused the burnout to begin with. Lastly look into that relay thing. it really is a sweet mod (or so I hear I haven't had the time to implement it yet)
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There may be nothing quite as expensive as a cheap Porsche: Ruby Red 84 928S : White 87 924s 2.5L NA (Blinky) M44/07-43H10676 spoiler delete - 046/2B - Belts 9/12, Clutch and OC seals 8/08 andd Red 94 Del Sol: Please put your Make, Model and Year in Sig. Try not to break more than you fix. |
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11-07-2009, 09:39 AM
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Garage Helper
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Also look at the RED wire that supplies power to most of the dash components - it is not fuzed from Porsche.
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78-924 traded for 80-931 traded for 84-944 traded for 85.5-944 (7th one now). UAV-M1 (Urban Assault Vehicle - Model 1) Bless the lowered, and pass the nitromethane. Pedal to the metal till you see the gates of hell then brake NLA - No longer available is a four letter word |
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11-07-2009, 12:02 PM
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Rudolf
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