daddycool100 Posted April 8, 2014 Share Posted April 8, 2014 Just installed new rebuilt automatic tranny for my 03 forester..trans control module is in limp mode. do i need to reset the ECU using a scan tool or what?? Quote Link to comment Share on other sites More sharing options...
Crawlerdan Posted April 8, 2014 Share Posted April 8, 2014 the oil pans on these trans are zero tolerance, i mean ZERO, so if you jacked the pan with a floor jack, dropped, farted to close to it, whatever, you ruined a solenoid in the trans. ive only done it like seven times Quote Link to comment Share on other sites More sharing options...
idosubaru Posted April 8, 2014 Share Posted April 8, 2014 nope, something is wrong. they are bolt in and go items normally, so if it's not right then something is wrong. 1. does the vehicle go into drive and move at all?2. any sounds or symptoms? 3. is the transmission for the exact same year vehicle? 4. what happened to the original transmission? 5. any check engine lights? dented pan AT pump cracked due to improperly seated torque converter on installation, common mistake. transmission harness isn't fully seated there's a secret handshake for getting that flashing AT light to give you the current code it has. be nice to try that and see if it tells you what the problem is. Quote Link to comment Share on other sites More sharing options...
daddycool100 Posted April 8, 2014 Author Share Posted April 8, 2014 As far as i know this tranny is for a 2003 was rebuilt by subaru..Tranny does drive and shift..No odd sounds..I do still have old tranny as it was driving when pulled out had a bad front Diff. Thanks for any help :0) Quote Link to comment Share on other sites More sharing options...
tirod Posted April 8, 2014 Share Posted April 8, 2014 (edited) Pull the codes. If it's a flashing AT TEMP light, there are codes for the trans. If the Check Engine light is on, more codes. What exactly is it doing, or not? When I installed mine, I eventually discovered that the entire problem was a cracked solenoid located directly above the magnet detent. As said, it's a Zero Tolerance fit, any pressure or flex on the pan cracks the solenoid and it goes into limp mode. If you are getting a code that suggests that the solenoid damping resistor is bad, then don't buy another, just pull the pan off and check the solenoid under the magnet. It's usually the culprit. I installed a good one from the old trans and it fixed the problem. In limp mode, it won't shift into high gear, and you get horrible mileage running over 3,500 rpms at 50 and above. Describe your limp mode driving and what codes you pulled, it will become clearer. Edited April 8, 2014 by tirod Quote Link to comment Share on other sites More sharing options...
daddycool100 Posted April 8, 2014 Author Share Posted April 8, 2014 sany chance it could be the hall effect sensor at the rear of trans? it sends signal to ECU for speedo and if the ECU does not see the signal it go into limp mode..will pull old off old tranny to see if that works.. Quote Link to comment Share on other sites More sharing options...
daddycool100 Posted April 12, 2014 Author Share Posted April 12, 2014 Need wiring diagram 2003 forester automatic tranny..need to move pinsaround as tranny we put in must be different from orig one wereplaced..we pulled codes on new tranny and they say open or shortcircuit..pressure control solenoid A & B..Shift /timing solenoid..pressure control solenoid..shift solenoid A & B..Or is this just thewrong tranny for this car? Quote Link to comment Share on other sites More sharing options...
lmdew Posted April 12, 2014 Share Posted April 12, 2014 (edited) double check the plugs and make sure you have no bent or pushed pins and they are seated all the way. Check the trans sticker on the front of the bell housing to make sure you have the correct trans. Edited April 12, 2014 by lmdew Quote Link to comment Share on other sites More sharing options...
daddycool100 Posted April 12, 2014 Author Share Posted April 12, 2014 There was no sticker with trans number on bell housing..was removed when rebuilt by subaru..it drives only with all the error codes.. Quote Link to comment Share on other sites More sharing options...
CNY_Dave Posted April 12, 2014 Share Posted April 12, 2014 The problem would be much smaller in scope were it only the Transfer duty solenoid mismatch (referenced in the other thread). I believe the front speed sensor, not the rear, supplies the signal to the speedo and TCU for controlling the shifting, etc. If it shifts it's not in limp mode, I think. Limp mode is what you get when you disconnect the connectors and it goes into 2nd (or 3rd?). Have you tried disconnecting the battery to reset the TCU and going from there? I don't think it would drive as well as you say if those codes were genuine. Quote Link to comment Share on other sites More sharing options...
CNY_Dave Posted April 12, 2014 Share Posted April 12, 2014 So where did this trans come from- a dealer? Quote Link to comment Share on other sites More sharing options...
ivans imports Posted April 12, 2014 Share Posted April 12, 2014 Sounds like a dud trans Quote Link to comment Share on other sites More sharing options...
daddycool100 Posted April 12, 2014 Author Share Posted April 12, 2014 disconnected battery and still flashing after hooked back up..car drives but does not shift..seems to be in 2nd or 3rd gear..bought off craigs list..I know you dont have to say it people..lol Quote Link to comment Share on other sites More sharing options...
CNY_Dave Posted April 12, 2014 Share Posted April 12, 2014 Maybe the guy forgot to connect the solenoids before bolting on the pan? Quote Link to comment Share on other sites More sharing options...
ivans imports Posted April 16, 2014 Share Posted April 16, 2014 Or they missed the ground conections They have small ground wires that ground near the base of sol if wire was on the rubber side instead of steel side could be no ground Quote Link to comment Share on other sites More sharing options...
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