Here's my story. 8/2010 driving down the highway at about 65mph went the tranny starts slipping out of gear then slamming back when rpms revs high. Long story short is that where the cooling lines connect on the cooler inside the radiator broke and I dump by transmission fluid into the coolant system.

Replaced radiator.
Changed Tranny filter/gasket.
Filled Tranny with new fluid.

After that I drove it and it ran pretty good and I was tickled. The only change from before was a tendency for the transmission to downshift quite a bit harder.

I have driven it ever since and the only thing I have noticed is over these months the downshifting has gotten softer until it was back to normal. I also noticed at night the lights would sometimes dim slightly at idle and I figured the alternator/battery was giving trouble and I never gave it too much mind. I can take care of it easily when I have time or the problem forces me too.

Well the other day just as I coasted to a stop the car jerked to a stop and the engine shut off. I started it back up and it has been stuck in second gear ever since.

The codes I pulled with me OBDII scanner are:

P0562 System Low Voltage
P0755 Shift Solenoid B Malfunction
P0700 Transmission Control System (blah blah something or other)

The other other thing you should know is that
P0562, and P0700 where both present for (at least) a short time before the car got stuck in 2nd gear. I only know because one month before I checked the codes then erased them in the parking lot of the state inspection place....

With the addition of the P0562 code I am thinking my PCM is crapped out since I read the voltage regulation is done through there. I really should have done a more thorough job checking voltage but I have only had time to through a VOM on the battery and see it was in a charged state (think it was 12.5-12.7 range)

What do you think?

 

I had those same codes and jerking/shutting off after I changed my transmission solenoid pack recently. Ended up being: a bad battery connection. The power wire coming from the PDC to the positive terminal was fried/corroded. I replaced the cable and haven't had a problem since.

I know that seems way out in left field, but these f'n cars...if something isn't perfect when it comes to the battery and power, they act up badly. Check the battery connections/cables carefully and thoroughly to begin with.

 

thanks Darth. Is there a free resource for wiring schematics out there for this model?
I imagine I need to find out where the voltage goes into the PCM prior to regulation. Perhaps I am getting a voltage drop through a corroded cable or loose connection. I think I could find it easily enough if I had a print.

 

The FSM link in my signature has the factory wiring diagrams in it, section 8w I think.

 

Your solenoid might have crapped out on you too.

 

It may have, but I had that code come up with the bad connection too...and I had just replaced my solenoid with the newest version.