Speed Pulse wire in 2004 Subaru Outback?

I just picked up a Pioneer AVIC Z1 and decided to install it myself. So far everything's looking to be a piece of cake, however I'm dumbfounded as to where the Speed Pulse wire is. after scouring the forums and finding a handful of topics on the subject, I have yet to find anything specific to my vehicle. Perhaps someone out there can help?

I'm installing the unit in a 2004 Subaru Outback Sport (2.5L). If you have any information as to where I can find the wire, or perhaps it's location on the ECU and how to access it cleanly, please let me know!

Thanks,
Inferno

Speed Sense      GREEN/ black             ECM below glove box

On the 4 cyl models the vss is in pin 10 of the 20 pin plug. On the 6 cyl models the vss is in pin 1 of the 22 pin plug. On the PZEV models the vss is in pin 14 of the 22 pin plug.

The vss wire is also found behind the instrument cluster.



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Shaughn Murley
Install Manager, Dealer Services
Visions Electronics
Red Deer, Alberta

Ah yes, forgot to mention I have the 4cyl. (never even heard of PZEV)

Anyway, I happened to stop by my local Best Buy (who installs NAV units for around $150) and after quite a bit of begging they decided to look it up for me:
"Pin 14 of 26, should be purple" he said.

This conflicts with your suggestion, and I think I might know why. The Outback Sport Is really just an Impreza wagon, NOT the big soccer-mom family wagon usually associated to the Outback. I’ve seen this happen before (reference material fails to make this distinction and often points you in the wrong direction) so I suspect Either Best Buy or your source is in error. Now the problem is deciding who’s correct.

First off, I’m starting to doubt if I’m actually looking at the ECU as both of you said it should be on the passenger side. I’ve been all around in there and the most ECU’y thing I can find is a relay box with only a few wires coming out of it. I believe the ECU is actually right below the steering column – it’s a big, flat box with two plugs attached, each plug having around 18 wires (I haven’t counted – there could be more but it’s too late to go out there right now). So, how can I be certain I’m even looking in the right place?

Second, I obviously need to test both wires before actually hooking it up and risking damage. You mention there's a VSS on the cluster? Maybe I should locate that and test for continuity against the two conflicting cables? What would you do? How can I confirm who's right?

Thanks for all your help!!!

Speed Sense      GREEN/ YELLOW             ECM below glove box

SUBARU, IMPREZA, 2004, Speed Sense

On the non-turbo models the vss is in pin 10 of the 20 pin plug. On the turbo models the vss is in pin 1 of the 22 pin plug. On the STi models the vss is in pin 27 of the 35 pin plug.

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Shaughn Murley
Install Manager, Dealer Services
Visions Electronics
Red Deer, Alberta

VSS      GREEN/ YELLOW      A/C      brown plug at column


this is for a 2004 wrx/sti.



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Shaughn Murley
Install Manager, Dealer Services
Visions Electronics
Red Deer, Alberta

also, check under the carpet on the passenger side for your ECM.

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Shaughn Murley
Install Manager, Dealer Services
Visions Electronics
Red Deer, Alberta

First off, I REALLY appreciate your help. Unfortunately, nothing I've heard yet matches what I have in my car. As you'll notice below, I

So, I thought I'd take a bunch of pictures and post the colors of the pinouts. Maybe that'll help? I'm starting to think more and more that this is a wild goose chase.


Here's the pictures:

https://www.inferno999.com/images/cars/2004outbackimpreza/VSS/


That *is* the ECM, right?


And here's my pinouts on (what I believe is) my ECM:

Grey connector (20-pin)
1 - red
2 - OPEN
3 - BROWN / red
4 - OPEN
5 - OPEN
6 - OPEN
7 -yellow
8 - blue/tan
9 - BLACK/ white
10 - yellow/red -- your source showed this as GREEN/ black or GREEN/ YELLOW. It is neither =(
11 - yellow/red
12 - RED / white
13 - ORANGE / white
14 - ORANGE / black
15 - purple
16 - RED / white
17 - blue/white
18 - blue
19 - GREEN/ brown
20 - WHITE/ red

Blue connector (16 pin)
1 - RED / blue
2 - WHITE/ black
3 - OPEN
4 - black
5 - blue
6 - orange
7 - GREEN/ red
8 - red
9 - OPEN
10 - blue
11 - blue/black
12 - white
13 - black
14 - ORANGE / white
15 - OPEN
16 - OPEN


So, now that you've seen the hardware, do you have any more ideas?

Okay. I just found out from a (more informed) friend that what I *thought* was the ECU is most clearly not (what is it BTW?)

Anyway, it appears that it's on the passenger side, under a plate under the carpet. I don't have time to take it apart right now, but I'm hoping when I do I'll find exactly what you've described.

Here's hoping

check for a GREEN/ YELLOW at the cruise module there in the drivers kick, it's the black one that says CRU on it.

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Shaughn Murley
Install Manager, Dealer Services
Visions Electronics
Red Deer, Alberta

Extreme1, I forgot to thank you for all your help.

After you were able to point me in the direction of the CRU, it was a piece of cake. Turns out there were four GREEN/ YELLOW wires and two GREEN/ black going into the CRU, so I ran multimeter down the pins and found one at around 4.5 that jumped up to around 4.7 at 40 mph. Hooked it in and as far as I can tell it's working.

Thank you!!