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Location & Accessing ECU (T6)

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11K views 16 replies 7 participants last post by  Power6  
#1 ·
Anyone know where the ECU is and how to access it? Trying to take a photo to provide the label information to Hilton Tuning to see what options they can come up with for a tuning package. Thanks in advance
 
#5 ·
Hahah y'all are gonna beat me to it huh? I'm about to get in line to wait for the next cable to come back...

I though the ECU was up by the firewall on the drivers side, but I haven't looked close just saw a thing with cooling fins.
 
#9 ·
If you are curious, I had to get the info off my ECM to see if Rob at Hilton could tune it. Sadly I have the updated ECM (I guess running change in '19) and Hilton does not have it cracked, but they will reach out to me when they do. The unit is exactly as Avboden said, in front of the left front wheel. There is no access hole, you have to peel back the fender liner but it's pretty easy, then once I figured out how to open the protection box that was pretty simple as well. If/when you tune you need to be able to remove the ECU to plug it to your computer with a cable that Hilton sends you. Pics below:

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#10 ·
Excellent work. Why the @&#+)@Ă—[emoji2398] did Volvo engineers decide to mount the ECU in that location. It's not that there is no space in the driver side under the dashboard or other more convenient place. They also placed the fuse box UNDER the passenger side carpet, together with the cell SIM card holder

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#11 ·
almost no ECU's are in-cabin these days. Engine-bay ish ECUs are the norm, shorter cable runs to everything that matters to the ECU and honestly easier to service than tearing the dash apart.

Volvo has pretty much always had engine-bay ECUs, even my '98 V70R had it there. Being behind the wheel well is nicely protected spot too.
 
#17 ·
Me too. I am worried though, from what I understand the CPU in the Denso computer they updated to has been changed to a Freescale CPU and that is causing all sorts of problems for aftermarket tuners getting updated tools for these. Hopefully it's a matter of time, it just seemed from reading about the tools that can write the ECUs that this was presenting quite an issue. So we just wait and hope the people doing the thing are able to do the thing...