hybrid vehicle ECU location?

Is there a reason why I can't seem to find an image of a gen 1 hybrid vehicle ECU actually in the vehicle? I have read a couple of places that it is under the carpet on the passenger side of the vehicle. Why hasn't anyone shared a photo or diagram? Why is this image so elusive?

 

I bought this car for the parts, so I didn't hear it run. The Seller attempted to start it, but couldn't. I bought it anyway because of the parts. It had a strong mildew smell in the carpet. I assumed it got rain in it. My codes keep giving me C1259, P3106 & P3030, all related to the hybrid ecu and vehicle ecm, so I swapped the ecm from my 2002 and no change. I’ve inspected the wires, so the next thing to check is the hv ecu. I figured it out, so I swapped the one from my 2002 and still no joy. I’m doing the whole “jumper from #4 to #13 with the ignition in the ON position in order to reset the anti theft “ thing. If this doesn’t work, I’m done. The testing the wires for certain voltage or current is beyond my ability so I guess the next step is to have it towed to a Mechanic and write a check.

 

I didn't describe it right, but that's the procedure I used. It didn't work. I'm not sure what's wrong. I'm researching local hybrid mechanics so I can have it towed and properly looked at.

 

I tracked my issue to the 15a EFI fuse blowing while starting. I replaced the fuse with a 12 volt bulb and tracked the problem to the ECM. When I unplugged the bottom cable, the light went off. I then swapped out the original ECM for the one out of the donor car, thinking that if the light goes out, my problem is solved, or at least if the light is illuminated and I unplug the bottom cable, my issue is in the wire loom. I installed the other ECM and the light returned. So I unplugged the bottom cable, but surprisingly, the light stayed on. I then unplugged the next one up and then the third and the light went out when the third cable from the bottom was unplugged. So I have two bad ECMs.

I'm pissed because I had an experience awhile back where I sent my donor car ECM to be repaired somewhere in Florida through Ebay for a cool $80. My ECM was kept for quite some time and then I got a call from the "shop" saying that they couldn't confirm that my ECM was damaged, but they could sell me a refurbished one for $400. Of course, I refused and when they returned my ECM, it was not mine and it was riddled with problems. They even kept my $80 because the transaction had lasted outside of the allotted time Ebay allows you to dispute. My donor car at the time was my daily driver and it never ran the same again. I know better now. Onward, upward.

 

Neither.
Their Ebay name was not there brick and mortar name and Ebay didn't give me access to offer feedback.

 

No joy. New (to me) ECM. 15a EFI fuse still blowing.

I thought I was on track when I stumbled upon this post. Any suggestions?

 

Lol, I hadn't gotten that far in the thread. I just read it and yes, I'll check everything he references in that post.

Edthefox5 was so confident in post #9 that I decided against investigating the oxygen sensors. It just so happens that when I bought the car, it was missing the catalytic converter. There may be a clue under the car.
I plan to tackle the oxygen sensors, and everything else he mentioned, in the morning...the bugs are feasting on me.

 

So I went back to post #31 of that very helpful thread and the 1st thing on the list I decided to check out was the oxygen sensor connection under the carpet on the passenger side...Problem solved. The sensor cable lead to nowhere.

Now that the short is solved, should the car at least turn over with the oxygen sensor missing/unplugged? Mine doesn't. I pulled two trouble codes: 3106 & 3030. The 3030 code I'm all over. It's that darn harness that I took weeks to clean and remove corruption from. I used the copper paste to slow any future corruption...but there was a single sensor wire that I broke and I replaced with a ring terminal... which was probably not good enough. Back to the bench.

 

Sorry.....P0306 & P3030

 

Sorry again! P3106, not P0306. I must have been tired...jeez.