V70 2001 Driver's power seat problem with intermittent power

[Racer_S]

sorry to resurrect old thread, i'm having the same problem in my 2002 s60 2.4t awd... still no solutions?

[JRL]

I had the EXACT same problem with an 01 T5M I had this past winter.
We found a couple of things but in the end we replaced the SEAT MODULE (cheap. used from Erie) and of all things THE SEAT HEATER module.
(The seat heater worked put it's part of the same circuit and was drawing current) so to be safe we replaced both.
No software was needed on used parts and it was 100% after the module swap.
If you're not sure of the part, call Erie ask for Adam, tell him you need the same part they sold Teppers Auto Sales last March.
Good luck
www.erievovo.com 1888 volvo-13

[1esotericguy]

I outlined my my version of this exact problem a few posts back.

Mine was fixed in a software reload. I asked my mechanic to download the software from Volvo and reload it onto the PSM.
I happened to have been getting a new ETM, which required software service - so, I asked him to get the PSM software at the same time. Saves some money as I think indy mechanics are charged a big fee to log on and then a smaller fee per download.

Worked for me. No new hardware. My problem was all software side. PSM Reload took care of it.

I don't know what it cost as it was rolled into the ETM charges, but it probably would cost around $260 if you had to have it done as a service by itself.

NOTE: My mechanic reloaded all the systems on my car on this service. So, I can't say for certain that the PSM reload alone took care of my power seat issue. I suppose it could have been a combination of reloads. But likely...

[tjai]

Hi, I have the same issue with my volvo s60 2001 and it works exactly as you've defined before, i.e. keeping the door open allows me to adjust the seat for the first 10 minutes. Problem is that if I miss that 10 min window then it does not work for a while. i.e. it will not work if I follow it up with starting the car, turning it off then and open the door to move the seats. It takes considerable time for the system to forget that state.
Guessing it means that I have to get it fixed to avoid this issue. My dealer is adamant that this is a seat module issue and not a SW issue. 1esotericguy is it possible to walk in to any indy mechanic and ask him to do a PSM reload? Also I am in san diego not too far from LA, can you tell me which mechanic did you go to, maybe I can try the same guy then?

[1esotericguy]

Hi TJai -

The mechanic that finally fixed mine via software was Anders at Swedecar in Torrance Ca.
Hope that helps. Great shop, awesome mechanic.
I don't think every Indy shop makes the investment for the Volvo
Subscription, computer etc to do software side work. Not sure though.
I only ever went to SWEDECAR.

If he needs a reference to look it up, you can let him know it was Nate with the high mileage 2001 S60.

[tjai]

Thanks !!

[tjai]

Hi, just a quick update, so I took my car to a volvo mechanic and he basically reset the computer and the power seat started working. His analysis was that the battery in my car was 800ccc (replaced by AAA) instead of the recommended 520ccc for the s60 by volvo. HIs judgement was that the voltgae spikes were what were causing issues with the car computer. Does it sound reasonable? Would there be no over voltgae protection ?

[tjai]

Update: the power seat stopped working in a day after the computer reset and so I've the PSM reload done today. Will post here how that goes.

fingers crossed !

[LeoTeoh]

Did Anyone can tell me how to reloading the PSM? I got same problem for my seat, but I trying to contact Volvo Hong Kong Dealer, they ask me what is PSM.............. so..... can anyone tell me it's available DIY for that? if I buy Volvo Vida Dice can I reload it by myself?