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90 Legacy Sunroof
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CarGuru > Open discussion > 90 Legacy Sunroof 19 April 2005 07:39:23

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90 Legacy Sunroof

George Foreman 18 April 2005 02:44:35
 Hi, I have a 1990 Legacy Sedan with a factory sunroof which is not working.
I'm trying to troubleshoot it and can't find anything anywhere that will
tell me where the sunroof gets it's power.
If anyone has dealt with this please could you tell me if the sunroof has
it's own power wire or if it's tapped off another circuit and if so; which,
and if the power wire runs up the A,B or C pillar. I checked the switch and
it appears to be after the motor in the circuit(circuit tester indicates the
black wire is ground and the other 3 wires don't respond to power input).
I'd appreciate any help, what I've discovered so far seems pretty nutty to
me and I'd rather not pull out half the interior just to test the power lead
to the sunroof.

Jerry


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johninKY 18 April 2005 05:53:04 permanent link ]
 Don't have a manual or the Legacy but looked at an 88 GL manual. In the 88
model, the sunroof has its own circuit. Power flows through 2 fuses, the
switch, through a relay, and than to the motor. Discovered the sunroof
can be manually opened and closed. Look for a plug in the headliner near
the rear view mirror. Behind the plug is a hex screw that can be turned.
From your description of the problem it sounds like no power is reaching
the switch. If true, check for a blown fuse. If you have power to and
through the switch than maybe the relay is bad. This is sort of hard to
explain but for the sunroof to open and then close the current to the
motor has to be reversed. This function happens at the switch. I
mentioned this because when you go to test for current after the switch it
could confuse you.

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George Foreman 19 April 2005 04:28:30 permanent link ]
 Thanks. I searched and can't find any fuses for the sunroof in either the
underhood box or the one in the driver's footwell... guess I'll have to pull
the headliner out anyway to find out any more about the circuit.

"johninKY" <gflong@nospam.kih.­net> wrote in message
news:6bb2c6cd8011e1­50fa757390faeac935@l­ocalhost.talkaboutau­tos.com...> Don't have a manual or the Legacy but looked at an 88 GL manual. In the > 88> model, the sunroof has its own circuit. Power flows through 2 fuses, the> switch, through a relay, and than to the motor. Discovered the sunroof> can be manually opened and closed. Look for a plug in the headliner near> the rear view mirror. Behind the plug is a hex screw that can be turned.> From your description of the problem it sounds like no power is reaching> the switch. If true, check for a blown fuse. If you have power to and> through the switch than maybe the relay is bad. This is sort of hard to> explain but for the sunroof to open and then close the current to the> motor has to be reversed. This function happens at the switch. I> mentioned this because when you go to test for current after the switch it> could confuse you.>


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johninKY 19 April 2005 07:39:23 permanent link ]
 I don't think the fuses are labeled "Sunroof". Pull and check all the
fuses before removing the headliner. Hate for anyone to go through all
this trouble only to learn it was a fuse problem. I wonder if you could
"hot wire" the wiring harness from the switch to the motor? If the roof
then works, you know not to pull the headliner.

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CarGuru > Open discussion > 90 Legacy Sunroof 19 April 2005 07:39:23

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