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Passenger Window problem.No up or down.
What is the best way to trace an electrical issue or to clean any contacts that may stop the passenger windows on both 85 and 86 928's? Thanks... Neither work and both switches are new. With experience on this forum-Electrical problem or motors?
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1985 928s Guards Red 5 speed,1986.5 Silver 928s Automatic.. |
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03-18-2011, 11:26 PM
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European Shark
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Start with the easy things first - fuses. There are seperate fuses for the d/p windows. 30amp each. Could be the plug on the motor in the door. Take the door card off and test the motor with 12v. Could be broken wires in the rubber bellow between the door and body.. Loads of things really
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1978 Porsche 928 Euro 5spd. Silver metallic/Black 1986 Porsche 928 S2 Euro 5spd. Meteormetallic/Grey. *Crashed* Owning a 928 is risky business - but sometimes you just gotta say "what the fudge". |
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03-19-2011, 03:30 AM
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928: Serial Enabler
Join Date: Sep 2007
Location: Elkhart, Indiana
Posts: 2,929
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Actually, its a shared fuse #15 and a shared relay.
Since driver's side works, its probably then inside the wiring as Ribner described or in passengers motors. They get wet and suffer from hard grease drag and corrosion. There is a hidden thermal trigger breaker inside as described by wally plumley. (shows on wiring diagram as a little squiggle line in the motor circuit representation) There is a writeup on rennlist with some pictures. Window Motor R&R - Rennlist Discussion Forums Before you take it apart, you could disconnect the 18pin connector up above the computers (for the door wires) and probe certain ones with your electrical meter while operating the switch. That would confirm the circuits at least up to the entry to the doors. Grey/blue also Grey/brown wires representing terminals 1 and 2 at that connector.
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84,85,86 928 cars Last edited by Landseer; 03-19-2011 at 04:21 AM.. |
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03-19-2011, 04:12 AM
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Petie3rd
Join Date: Jul 2000
Location: Philly PA
Posts: 4,528
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take the arm/ motor out of the door,
take it apart and clean and lubricate all of the parts, your motor will last a long time if you do this , unless it has burned up from over stress of corroded internals
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^^^ Stan ^^^ 2019 BMW K1250 GS 2016 HD RK 1988 S4 Auto , Elfenbein Perlglanz, Pearl Gray 1982 5sp Met black and tan sport seats |
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03-19-2011, 06:34 AM
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European Shark
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Quote:
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1978 Porsche 928 Euro 5spd. Silver metallic/Black 1986 Porsche 928 S2 Euro 5spd. Meteormetallic/Grey. *Crashed* Owning a 928 is risky business - but sometimes you just gotta say "what the fudge". |
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03-19-2011, 11:35 PM
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928: Serial Enabler
Join Date: Sep 2007
Location: Elkhart, Indiana
Posts: 2,929
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I had to look it up, too. You got the amps right --- that's what I was searching to verify. That's a lot of power.
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84,85,86 928 cars |
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03-19-2011, 11:52 PM
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European Shark
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Yup, fried wires a'la'carte if something goes wrong
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1978 Porsche 928 Euro 5spd. Silver metallic/Black 1986 Porsche 928 S2 Euro 5spd. Meteormetallic/Grey. *Crashed* Owning a 928 is risky business - but sometimes you just gotta say "what the fudge". |
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03-20-2011, 12:30 AM
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Registered
Join Date: Nov 2009
Location: Tuckerton NJ
Posts: 226
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mine had a broken wire where it goes into the door jamb.
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86.5 Porsche 928, 75 Porsche 914, 2.0, 2001 Boxster. |
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03-20-2011, 02:51 PM
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85 Manuel
1999 BMW 520i
1986 Porsche 928
