My boyfriend jumped the battery with the cables switched, + on the - and visa versa. Since then it won't shift out of 2nd gear. I was told he fried the capacitors on the ECU and the ECU must be replaced. Any help would be appreciated!!
2006-08-24 12:21:12 · 9 answers · asked by maryastone 1 in Cars & Transportation ➔ Maintenance & Repairs
It's quite possible that's the problem if the booster cables were connected backwards. But before I just replaced the Transmission computer, you may want to have it scanned for codes and make sure the computer is bad. AutoZone will check the vehicle for free. Just don't drive over 30 MPH or you can do internal transmission damage. The transmission computer itself is located on the driver's side inner fender-well, at the front of the engine compartment. Good Luck!!
2006-08-24 12:30:39 · answer #1 · answered by lugnutz59 5 · 0⤊ 0⤋
That is an expensive lesson. You may have lucked out and just shorted the regulator in the alternator. If that's the case, the ECU is not getting the proper 12 volts and will not operate properly.
Replace the regulator, or the whole alternator if you haven't done it before, AND replace the battery at the same time.
2006-08-24 12:24:47 · answer #2 · answered by Anonymous · 0⤊ 0⤋
After checking the battery with the car running and verifying it is around 13 volts your limp mode can be caused by the ecu, input or output sensor but this sounds right for the reason you are in limp (reverse cables) the ecu is under the air filter box on the LHS I believe
2006-08-24 12:25:46 · answer #3 · answered by Scott B 2 · 0⤊ 1⤋
Limp-In mode happens when a main sensor in the transmission fails. the transmission will not shift out of 2nd to avoid any further damage from the failure. the ECU would not be the problem. Check the TCM relay in the relay box first. then scan for codes (all you scanner jockies)
2006-08-24 21:20:02 · answer #4 · answered by dome_rbc 2 · 0⤊ 0⤋
Try to "learn" the computer. There is a proceedure outlined in the service manual. That should take care of it. Definitely do that before buying an ECU. Good luck. If you do need another computer, go to the junk yard.
2006-08-24 12:31:29 · answer #5 · answered by jeff s 5 · 0⤊ 0⤋
if you need an ecm whatever you do STAYOUT of the Salvage, JUNK Yards for this one. You can purscase one from Most Auto parts houses but because your Car is equipped with OBDII it must be programmed in order for the ecm to function properly and unfortunally you have a Chrysler and only Chrysler can reprogram it correctly. good luck
2006-08-28 11:47:35 · answer #6 · answered by iamright2 4 · 0⤊ 0⤋
I would get a second opinion. If necessary you can by a rebuilt ECU or one from a salvage yard.
2006-08-24 12:26:19 · answer #7 · answered by Albert F 5 · 0⤊ 0⤋
Before you do anything else take the car to the dealer and have them scan it to check the PCM and TCM functions. After having done this, you'll get a more accurate diagnosis of your problem.
2006-08-24 14:17:03 · answer #8 · answered by ron k 4 · 0⤊ 0⤋
Well, I'm sure your gonna hear, that he's an Idgit...Anyways, If I remember right, one of the computers is behind the left headlight. But will double check with m sources and get you the correct answer.
ADDED: I had checked it out. It is located under the filter box, near the passenger side headlight.
2006-08-24 12:26:18 · answer #9 · answered by Silverstang 7 · 0⤊ 1⤋