Code 57 on 2.3 Ranger

[colintrax]

Been having a lot of problems with the old girl, so I finally pulled the codes today. It's a 1991 so I'm not sure if it's supposed to be 2 or 3 digit but it seems like its giving me code 57 twice and then 1 several times. What could this be?
BTW it's a 1991 Ranger, 2.3 4cyl
Thanks!

 

[MrShorty]

I think '92 was the first year for 3 digit codes, though I'm not as sure on the 2.3.

The ones at the end are probably CM 11 pass codes - meaning there are no stored codes.

The KOEO 57 points to a problem in the Park/Neutral position switch. Need to determine if you have an auto or manual transmission, then a little research to determine exactly what circuit/problem the KOEO 57 indicates.

 

[colintrax]

Thanks, its a manual transmission.
Went and tried it again. Got a few more codes on top of the 57