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Alarm Goes Off When Opening Trunk with Key '98 V70

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
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bmdubya1198
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Alarm Goes Off When Opening Trunk with Key '98 V70

Post by bmdubya1198 »

Been a problem for a while now, but when I unlock and open my rear hatch with the key, the alarm goes off. It's pretty annoying having to unlock the driver door first, then walk back around when it's pouring rain and I have to put a rather heavy car battery in the trunk, a situation I ran into a couple weeks ago.
Is there anything other than the trunk wiring that I should be looking into? I know there's probably an issue with it, since my rear wiper only works when the tailgate is opened, which I discovered after tearing apart all the wiring and putting it all back together since I figured the issue was a bad wiper motor.
00 V70R Venetian Red/Charcoal M56 Swapped 214k
07 XC90 V8 AWD Sport Titanium Grey/Black 220k
92 245 White/Beige 249k
91 944 Turbo 175k
…and a bunch of other stuff
Sold-
03 S60 2.4T
00 S70 GLT
98 V70 GLT
93 944
98 S90
95 850 GLT
01 S60 2.4T
05 S60R M66
08 S40 2.4i
88 744 Turbo M46

scot850
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Post by scot850 »

Sounds like a check is needed on the wiring harness at the top of the LH hinge is in order. These wires fracture with age and then short out or just stop working. Same issue happens with sedans.

Neil.
2006 V70 2.5T AWD Polestar tune
2000 V70 R - still being an endless PITA
2006 XC70 - Our son now has this and still parked in our garage
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L - Sold
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
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wizechatmgr
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Post by wizechatmgr »

+1 on that rear harness by the hinge
Wisdom requires knowledge as a prerequisite, but knowledge can be developed due to a lack of wisdom.
In order to learn how to fix something, you must first learn how to break it.
1999 V70 XC AWD 2.4 T -- ~231k miles
1998 V70 2.4 NA -- ~184k miles

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bmdubya1198
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Post by bmdubya1198 »

Figured as much. Now I gotta tear it apart AGAIN :cry:

Every time I touch it more plastic breaks. I'm so close to just stripping out the interior and making it a full on track car and dailying something else.
00 V70R Venetian Red/Charcoal M56 Swapped 214k
07 XC90 V8 AWD Sport Titanium Grey/Black 220k
92 245 White/Beige 249k
91 944 Turbo 175k
…and a bunch of other stuff
Sold-
03 S60 2.4T
00 S70 GLT
98 V70 GLT
93 944
98 S90
95 850 GLT
01 S60 2.4T
05 S60R M66
08 S40 2.4i
88 744 Turbo M46

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wizechatmgr
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Post by wizechatmgr »

If you really want to go hog-wild - remove the interior and have them spray it with bed liner. Now seal everything and turn it into a large rolling aquarium. Now you can make your own DUI/DWI commercials and sell them to local and state governments... Make sure to charge at least $10k, they usually won't even consider a product that costs less =)
Wisdom requires knowledge as a prerequisite, but knowledge can be developed due to a lack of wisdom.
In order to learn how to fix something, you must first learn how to break it.
1999 V70 XC AWD 2.4 T -- ~231k miles
1998 V70 2.4 NA -- ~184k miles

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abscate
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Post by abscate »

What's wrong with that wiper functionality? Just open the hatch if it rains?
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1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
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wizechatmgr
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Post by wizechatmgr »

That's potentially fine, until he wants it running intermittently.
Wisdom requires knowledge as a prerequisite, but knowledge can be developed due to a lack of wisdom.
In order to learn how to fix something, you must first learn how to break it.
1999 V70 XC AWD 2.4 T -- ~231k miles
1998 V70 2.4 NA -- ~184k miles

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abscate
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Post by abscate »

Just open and close intermittently. Can I mark this solved?
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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Post by bmdubya1198 »

Time to work on that power tailgate...

Funny, my cousin and I just bed-linered the trunk of his new-to-him $300 Mazda Navajo. I have never seen a $300 car's interior clean up that quick (with the exception of my headache of a V70!).
00 V70R Venetian Red/Charcoal M56 Swapped 214k
07 XC90 V8 AWD Sport Titanium Grey/Black 220k
92 245 White/Beige 249k
91 944 Turbo 175k
…and a bunch of other stuff
Sold-
03 S60 2.4T
00 S70 GLT
98 V70 GLT
93 944
98 S90
95 850 GLT
01 S60 2.4T
05 S60R M66
08 S40 2.4i
88 744 Turbo M46

User avatar
abscate
MVS Moderator
Posts: 35294
Joined: 17 February 2013
Year and Model: 99: V70s S70s,05 V70
Location: Port Jefferson Long Island NY
Has thanked: 1504 times
Been thanked: 3817 times

Post by abscate »

You will need a sharp razor to open the sheath on the D pillar and find that nasty mess of broken wires
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
Link to Maintenance record thread

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