Frustrating Remote won't unlock- ONLY lock!

coustyj · Post by **coustyj** » 18 Feb 2010, 16:13

In all honesty, personally - No - I always ended up at dealer (twice) to buy and re-program a new one. However as far as dirty contacts are concerned I stand behind the contact cleaner - I use it for most electrical cleaning. Also a pencil eraser works in a pinch for "gold" contacts - not a pen eraser.
Jim

VolT5 · Post by **VolT5** » 19 Feb 2010, 22:07

Tried cleaning it with contact cleaner, no help... door actually locks regardless of which button I press. That's too bad...

Medusalith · Post by **Medusalith** » 19 Feb 2010, 22:40

What if it is a relay issue?

VolT5 · Post by **VolT5** » 21 Feb 2010, 18:19

Could be... not sure how you would troubleshoot it in that case.

Medusalith · Post by **Medusalith** » 04 Mar 2010, 13:00

If your car operates the central locking flawlessly with just the key then it's the alarm relay almost sure. My 440 had a similar issue, the hazzard lights worked well, except when operating the fob; the lights didnt flash anymore all of a sudden. I went to the service and they didn't even had to check it they just said it's the alarm relay that is faulty and needs to be changed.

Check this post:

http://www.volvoforums.org.uk/showthread.php?t=65269

It's about a 940 but it can give you some hits about what to do.

Medusalith · Post by **Medusalith** » 04 Mar 2010, 15:02

I got this some time ago from google but I can't remember the site, sorry.
I think before you go and buy any part you should see if this diagnostic is appliable to your alarm. I believe this is done accessing the alarm ECU.

iwassaved · Post by **iwassaved** » 09 Jul 2011, 17:42

I have a 1998 V70R with similar issues. The remote will unlock the two back doors and the rear door, as well as lock all of the doors. Placing the key in the drivers door to unlock will unlock all but the front passenger door. The controls in the car work the same as the drivers door, full functionality except unlocking the front passenger door. Any ideas where to start? What worked for you?

Post by **BEJinFbk** » 09 Jul 2011, 19:06

Sounds like you'll need new latch/actuator mechanisms for the two front doors.
13 year old car. They wear out...

Post by **erikv11** » 07 Oct 2011, 07:05

jblackburn wrote:Rubbing alcohol & a Q-tip/cotton ball

I have 2 remotes, one had the problem in the title and one didn't work at all. Opened them up, sure enough the buttons were all gummed up with green corrosion. After soaking in 100% rubbing alcohol and working the buttons, I removed a lot of gunk with Qtips. Remote now works flawlessly from 40 feet, gave it totally new life.

Still working on the second remote, one button was frozen with gunk and it is starting to free up after soaking in alcohol for an hour. We'll see how it goes with that one, I bought it from a forum member and was never able to sync it with my car because the buttons don't work.

Frustrating Remote won't unlock- ONLY lock!

Re: Frustrating Remote won't unlock- ONLY lock!