What codes are you trying read, engine or automatic transmission (AT)? The procedure you are using appears to be the one for AT codes. (http://www.subaruoutback.org/forums...f-illustrated-guides/44383-199-2004-how-read-diagnostic-trouble-codes-dtcs.html)

I'm not aware of a handshake procedure for accessing engine codes in earlier model years, although that doesn't mean there isn't one. Also, your Impreza-based Subaru might not have the same features as the Legacy-based Outbacks. (Different "platform").

 

I have a 1997 Legacy 2.2 4EAT but can't get the secret handshake to work? Any tips? I have tried like 10 times in every way I think.

 

Did you ever get it to work? I have a 97 subaru legacy gt and can't get the handshake to work.

 

@Mikegt97 ,

Just a quick heads up.... @David M. & @bcd8890 haven't visited the forums since 2015 / 2018.... They either found a resolution or have moved on.

@plain OM was wandering the hallways a little bit ago. Likely with a cup of coffee....

 

Probably doesn't work with 1997, and as mentioned, is for reading the automatic transmission codes (if any) only, not the engine.

 

I'm trying to read transmission codes, I was able to get my AT oil temp light to blink by connecting pin 5 of the b82 diagnostic connector to one of the attached ground wires rolled up in tape. I then used a procedure I found on a forum.
1. Put it in D
2. Turn ignition off
3. Turn ignition on
4. Put it in 3
5. Put it in 2
6. Put it in 1
7. Press accelerator halfway down
(All of this with the engine off)

It was blinking 2 times per second indicating everything is normal, but I've read that there are 2 methods, one for reading previous codes and one for reading existing codes, so I wonder which one this was. I had my AT temp light blink 16 times at start up but it doesn't do it every time only after it stalls.