Adding heated seats P2 V70? Topic is solved

[erikv11]

If you read to the bottom of the second page of the SS link somebody chimes in regarding a P2 V70 saying they had success.

I personally have only gone the other way & swapped non-heated seats into a P2 that had provisions for heated seats. Currently my wife is insistent that I undo that.

Did you reach out to Yagger? If there is a way to do it I’m pretty certain he knows how to make it happen.

This is my thinking too. It seems doable but not worth the effort. Not even for a 95k P2 V70 2.5T. There's a bunch of those around right? Npw, if it were a manual ...

It’s like buying a a Volvo without a sunroof, it’s just wrong

So is this. Volvo should not have let anyone order the turbo models without heated seats!

[erikv11]

OK I had a correspondence with yagger, to summarize his info and from other links i have seen, here's how to do it:

(1) Get the hardware, junkyard is your friend
1a . Heated seats
1b . CCM with buttons or swap the buttons from a CCM that has them into your CCM that doesn't.
1c . Seat heater modules - SHM in wiring diagram. These are attached to the heated seats you get from the junkyard or you could make your own based on other postings.
1d. Wiring - I am assuming all cars have the wiring but I don't know this. Anyone know?
1e . Add two fuses to the CEM

(2) Program the CEM to activate heated seats. Yagger can do this, there are three basic ways they do any programming:
2a. Option 1: Send them your CEM, they change config as you wish (in this case add heated seats). You pay them for the reprogram and you pay for shipping both ways.
2b. Option 2: Buy their OBD device, they send it to you and after you receive it they use it to get the CEM pin live/online and change the config as you wish, through OBDII using your DiCE. This way you don't need to remove CEM.
2c. Option 3: You figure out how to extract the CEM data and send them the data by email. Then they make the CEM changes live/online through OBDII using your DiCE. Again this way you don't need to remove CEM.

The 07 CEM is a pain to remove but the videos from Xemodex make it clear and seems not very difficult. I would probably go 2a unless someone can talk me through 2c.

2007_V70_Heated seats.pdf

2007_V70_Heated_seats

(61.3 KiB) Downloaded 204 times

same as the pdf - 07 heated seats

[yagger]

2c. Option 3: You figure out how to extract the CEM data and send them the data by email. Then they make the CEM changes live/online through OBDII using your DiCE. Again this way you don't need to remove CEM.

I think here need to remove CEM.

[erikv11]

2c. Option 3: You figure out how to extract the CEM data and send them the data by email. Then they make the CEM changes live/online through OBDII using your DiCE. Again this way you don't need to remove CEM.

I think here need to remove CEM.

Thanks also for explaining that for my 07, the CCM would have to come from 05-08 car.

[abscate]

2c. Option 3: You figure out how to extract the CEM data and send them the data by email. Then they make the CEM changes live/online through OBDII using your DiCE. Again this way you don't need to remove CEM.

I think here need to remove CEM.

Thanks also for explaining that for my 07, the CCM would have to come from 05-08 car.

Yes CANBUS Baud rate change (fixed by yagger)

1999 2001-2004
CANBUS HIGH 250k
CANBUS LOW 125k

2005-2007 and on to 2014
CANBUS HIGH 500k
CANBUS LOW 125k

Add 50% to speeds with waterfall grill.

[yagger]

Yes CANBUS Baud rate change

2001-2004
CANBUS HIGH 250k
CANBUS LOW 125k

2005-2007
CANBUS HIGH 500k
CANBUS LOW 250k

Add 50% to speeds with waterfall grill.

For P2 Platform

1999-2004
CANBUS HIGH 250k
CANBUS LOW 125k

2005-2014
CANBUS HIGH 500k
CANBUS LOW 125k

[abscate]

Sergei - do we have a CANBUS low on a 1999 or just a High ?

[yagger]

Sergei - do we have a CANBUS low on a 1999 or just a High ?

Both actually. It same platform. I mean S80 1999MY.
For cars like V/S70 there is one CAN only.

[skylonda]

I have an '04 V70 with manual passenger seat and found a pigtail taped up under the carpet on the passenger side that I think is the heater supply. I put a power seat w/o heat in it and it seems to work with the original wiring and software, did not yet connect the heater supply wires.