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98 v70 t5 Windows mirrors and sunroof inop

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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timmybdaddyof3
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Joined: 14 August 2014
Year and Model: 1998 V70 T5
Location: Arizona USA
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98 v70 t5 Windows mirrors and sunroof inop

Post by timmybdaddyof3 »

I just bought a high milage 98 v70 t5 in very good condition, but of coarse its got a few minor issues. As title states, mirrors, windows and sunroof are inop. Rea other posts and removed and cleaned the drivers side power window switch and the windows worked momentarily (the windows were all down about an inch and i was able to get them rolled up), cleaned the mirror switch to no avail, cleaned the sunroof switch, and now it will move about 4" and stop...to get it to move again you must lock the car, wait about 5 mins, unlock and it will give you another 4".
From research I have checked the alarm siren and it is inop as well (btw where does is actually reside???)
and for what its worth it is not jamming on anything, the motor only gets power for brief intervals.

Any help would be appreciated
T

timmybdaddyof3
Posts: 119
Joined: 14 August 2014
Year and Model: 1998 V70 T5
Location: Arizona USA
Been thanked: 2 times

Post by timmybdaddyof3 »

Just posting back the results in case anyone finds this thread in the future....
Fuse 35 runs to the mirrors, windows, and sunroof motor via circuit breaker 37 (also in the fuse block under the screwed down cover) via the blue wire...and runs to the sunroof switch directly also via a blue wire.
In my case the right rear window switch on the master panel (drivers door) was shorting out (the "fingers" were sticking down)...this would trip the circuit breaker, but not the fuse. What led me to find this was: 1. heat fatigue under the circuit breaker, and 2. an audible electrical arc when power was put to the switch.
So the moral of the story is the circuit breaker for the blue wire is after the fuse, and will show voltage anytime the key is on regardless of if there is a dead short...you will also be able to find voltage at the sunroof switch, but not at the motor itself.

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abscate
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Year and Model: 99: V70s S70s,05 V70
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Post by abscate »

Thanks for the followup - I missed this thread. This is the same on my 1999. I once popped the breaker on my sunroof, and had the same 5 minute wait for the circuit breaker to reset.
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
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