Northstar Engines and System Technical Discussion Discussion, AAARRRGHHH...Where's the #$@#) switch?!?! in Cadillac Engine Technical Discussion; I'm getting IO27 and PO91 codes on my 95 SLS which points to a TR / PRND321 switch failure but ...
I'm getting IO27 and PO91 codes on my 95 SLS which points to a TR / PRND321 switch failure but I can't locate it to check it out or replace. The car runs pretty good but the SES light comes on after driving about 2mins.
I understand the basic operation of the TR switch, but is there another sensor tied into the switch?
Found it! Thanks dude. I reckon I should have been wearing my glasses when I was looking for it before. Does any one know if the switch is repairable or adjustable? Once I saw the size of the switch I figured it's going to be a dealer item and it looks like it's going to be EXPENSIVE! My fiance is in college so I'm working on a very very tight budget....
I've done a search on all the forums concerning this switch and really can't come up with anything. Is this something that is uncommon to fail? It looks like there are 3 screws on the cover which leads me to believe that the switch is actually servicable (adjustable). I don't have the $80 to replace it at this time and really would like to get the SES light to stay off for more than 5min. Any info would really be helpful
Automobile(s): White Diamond '03 DHS (with DTS floor shift)
Re: AAARRRGHHH...Where's the #$@#) switch?!?!
The switch is adjustable. However the manual talks about an "alignment tool". It also makes mention of "If the pin is sheared, check for a cracked carrier". Having never messed with this switch on the 4T80E I can't help much more than that. I did adjust one on a 4T60E once and it was much simpler. Just insert a pin (drill bit) in a hole and adjust). Maybe a trans shop will adjust it for a couple of bucks. Couldn't take more than 5 min.