My 2003 T1N is stranded in a state carpool parking lot in Saginaw, Michigan, about an hour's drive from my home. The problem arose very suddenly. Leaving a parking lot I felt a small lurch in a low-speed forward gear. About 20 miles of city driving later the engine lost connection to the wheels in 30 mph driving. Power was resumed briefly for a hundred yards or so until a stoplight, where all connection to the wheels was lost.The engine reluctantly starts now and spins in all gears with no forward or reverse movement of the van. Scan with my Autel MD802 yielded the following codes:
P26600 undervoltage
P2500 impermissible transmission ratio
P2502 the gear is implausible or the transmission is slipping
P2200 Speed sensor 2 is faulty.
I gather that the TCM has gone into full self-protect mode. I cleared the codes with the MD802. The codes all disappeared but it did not change the problem at all. I need some serious advice.
1) What is the likely problem and how should I proceed?
2) Is there any way that I can get a quick and dirty repair on site in the parking lot? If I could somehow trick the TCM into at least allowing limp-home mode, I could get the van back into my own driveway and fix it in a less difficult situation. The alternative is a costly flat-bed 60 mile transport.
3) I'm thinking about (a) pulling the drivers seat and checking the TCM for wicking fluid; (b) removing the transmission cover and valve body, bringing them home and checking them out as best I can off the vehicle and perhaps (c) replace conductor plate if indicated. Then drive back, install parts and new ATF and hopefully drive it home, at least in LHM.
I have posted in another thread the question whether the Autel MD802 that I have is sufficient to fully clear all of the codes that I need to clear. If not, is there some secret combination of on-off ignitioin cycles, key fob events and/or accellerator press release sequences to tell the TCM to reset itself or do I need to locate a professional scan unit?
Any help that you folks can offer would be greatly appreciated.
P26600 undervoltage
P2500 impermissible transmission ratio
P2502 the gear is implausible or the transmission is slipping
P2200 Speed sensor 2 is faulty.
I gather that the TCM has gone into full self-protect mode. I cleared the codes with the MD802. The codes all disappeared but it did not change the problem at all. I need some serious advice.
1) What is the likely problem and how should I proceed?
2) Is there any way that I can get a quick and dirty repair on site in the parking lot? If I could somehow trick the TCM into at least allowing limp-home mode, I could get the van back into my own driveway and fix it in a less difficult situation. The alternative is a costly flat-bed 60 mile transport.
3) I'm thinking about (a) pulling the drivers seat and checking the TCM for wicking fluid; (b) removing the transmission cover and valve body, bringing them home and checking them out as best I can off the vehicle and perhaps (c) replace conductor plate if indicated. Then drive back, install parts and new ATF and hopefully drive it home, at least in LHM.
I have posted in another thread the question whether the Autel MD802 that I have is sufficient to fully clear all of the codes that I need to clear. If not, is there some secret combination of on-off ignitioin cycles, key fob events and/or accellerator press release sequences to tell the TCM to reset itself or do I need to locate a professional scan unit?
Any help that you folks can offer would be greatly appreciated.
