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1998 V70: Remote not working and no alarm

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

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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Goupil
Posts: 26
Joined: Mon Feb 04, 2019 12:52 pm
Year and Model: 98' V70 2.5T
Location: France
Has thanked: 1 time
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France
Goupil

1998 V70: Remote not working and no alarm

Post by Goupil » Fri May 17, 2019 10:41 am

Hi,

I bought my V70 with a pair of non working remote.
As per the seller, one just needed a new battery while the other wasn't programmed, but I couldn't get any to work :?

Car was built in late 97, and it has the red light on the dash. I've never seen it being lit.

Central locking works fine and I fixed the door lock switches a few weeks ago.

It had an aftermarket alarm, which seemed inactive since I didn't have any of the remotes for it. The alarm featured a LED (K6 and K8 on the schematics), which flashed when I did the remote programming procedure, but the remote still wasn't working.

Image

Thinking the aftermarket alarm could have been the issue, I removed it (what a great day of fun this was :mrgreen: ). It did not make a difference, and I'm not sure what to try next :?:
Image

Could the alarm module be bad and keep the remote from working :?: Or maybe the stock alarm was deactivated (if even possible) when the aftermarket one was installed ? :?:


1998 Volvo V70 2.5T manual Summum 193hp

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manovlov
Posts: 149
Joined: Wed Jul 06, 2011 6:47 am
Year and Model: 850 WAGON 95 2.5-20V
Location: GRENOBLE
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manovlov

Re: 1998 V70: Remote not working and no alarm

Post by manovlov » Fri May 17, 2019 12:51 pm

Newbie here.

Hy. How did you remove the aftermarket alarm ? You post a wiring. Did you find cables on your own installation ? There must be another wiring board more precise, no ?

Manov


Vroum !

User avatar
Goupil
Posts: 26
Joined: Mon Feb 04, 2019 12:52 pm
Year and Model: 98' V70 2.5T
Location: France
Has thanked: 1 time
Been thanked: 2 times
France
Goupil

Re: 1998 V70: Remote not working and no alarm

Post by Goupil » Fri May 17, 2019 3:13 pm

No factory wires were cut, the aftermarket alarm ones where just soldered right onto them.
I just cut them off, soldered the stock ones if needed and insulated everything.

This schematic is the only one I could find, there's not much with the alarm being at least 10yo from what I could find.

I just found the massive pdf of Volvo wiring diagram for the 1998 x70, i'm off to a good read !


1998 Volvo V70 2.5T manual Summum 193hp

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