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Hood Light Switch

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Old 04-05-2010, 10:39 PM
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fsr224
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Default Hood Light Switch

Where is the hood light switch on an early 944? I looked every were in the engine compartment and could not find the switch.

Thanks
Old 04-06-2010, 01:01 AM
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johnnykrand
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I think the one you mean is on the bottom of your dash under the steering wheel
Old 04-06-2010, 01:07 AM
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krystar
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there's a switch? I thought it was turned on whenever u have parking lights on and you open the hood.
Old 04-06-2010, 01:21 AM
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dv8nxs944
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Hood light switch?
Old 04-06-2010, 01:23 AM
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fsr224
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How does the car know the hood is open? Is there a micro or mercury switch under the hood?
Old 04-06-2010, 01:24 AM
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V2Rocket
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believe he means the underhood switch that actually turns the light on when the hood is open and the parking lights are on.

i can check my car for you at 10pm
Old 04-06-2010, 01:26 AM
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krystar
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ohhh. good point. i don't think i ever saw a micro toggle switch... it could be near the hatch lock.
Old 04-06-2010, 01:50 AM
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GTSilver944
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It's on the drivers side near the firewall and all the emission control stuff.
Old 04-06-2010, 03:23 AM
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fsr224
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I lust looked at several pictures on the web, I saw the switch GTSilver44 mentioned, I think that is only on 85.8 plus models. Mine is an early 85..
Old 04-06-2010, 03:58 AM
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Luis de Prat
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If you open the hood and put the blinker stalk in the position to signal right, the engine light will turn on even if the car is shut down and the lights are out.

You may need to push the bulb in and out a bit for it to make good contact, but it's designed to work this way.
Old 04-06-2010, 04:47 AM
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J1NX3D
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Originally Posted by fsr224
How does the car know the hood is open? Is there a micro or mercury switch under the hood?
its a mercury switch. the guy who installed my alarm found it fascinating.
Old 04-06-2010, 09:12 AM
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JimV8
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Yes. It is a mercury switch.
Old 04-06-2010, 11:02 AM
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manydubs
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mercury switches always reminds me of lethal weapon movie...
Old 04-06-2010, 11:35 AM
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ideola
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Yep, mercury switch, but they are highly susceptible to corrosion. Might be good to remove the switch and harness and clean up the bracket itself. They have a little pin that goes thru a small hole on the hood, and this is where the grounding contact is made. If it's corroded, the light won't come on very well. Make sure it's good clean metal and give it a coat of dielectric grease. Also, makes sure the light socket is clean as well, use some sand paper, needle file, or Emory board to clean things up.
Old 05-06-2017, 07:14 PM
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951Dreams
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Hate to bring this one back from the dead, but is the lights Mercury switch in the light itself? I just spent an hour chaising my tail on this! Lol

In short, my 951 didn't have the bulb. I bought one but then couldn't figure out why it wouldn't work. Finally figured out you had to have the parking lights or right turn signal on. (I do find it interesting it didn't come on with the hazards however.... Really Porsche?? That makes more sense than the right signal!)

Anyway, I was pushing on the OBVIOUS switch, right in front of the fuse box. Tested it, took it apart, jumped it.. you name it. (Is that one just for the alarm????? All i can figure out) that switch did nothing. I tested with the hood closed, no light. WTH! How does it know???? I searched EVERYWHERE!!! Turns out, magic Germans!!! Mercury switch, who would have thunk????

So anyway, where that magic switch be???

And yeah, now that I think of it, since it's only powered with parking lights on, or right signal on, that second on has to be for the alarm!! Good to know if I ever install a aftermarket alarm.

That things I'd like a decoy!!! Two hood switches... Sneaky Germans!
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