"Tight corner braking" is a term the factory manual coined.

It best describes a malady that is associated with the function of the speed sensors. There are 2 of them and they are on the transfer case. One is up high on the right side of the case and is held in place with a nut and retainer there are wires leading from it to the ECM that controls the TOD. The same is true with the speed sensor in the rear to the TC (transfer case). Don't confuse this with the speedometer sensor that is on the right side also but looks way different and is adjacent to the propellar shaft.

But before, I suggest you run this test. Go into a market parking lot, or better yet a a place with nice shiney cement floor like an underground parking lot. Now while going very slow forward turn the wheel left or right to "full lock" does the car act like or feel like your applying the brakes? Also do you feel any sensation of "hard steering" that seems to let-off when the wheels straighten out?? Then does it relase with a "thud only to start braking again?

Okay that is "hard Corner braking". The popping or the "thud" is the "clutch pack" binding up and then releasing in the transfer case. We have full time 4 wd so it is necessary we syncronize the speed and distance that the front and rear wheels travel. For example, when you make a sharp right turn your right front wheel (inside)is traveling a much shorter distance that the left front wheel (outside). The same is true for the rear wheels. Those sensors syncronize the power to the front propeller shaft.

I you have any mechanical ability I would climb under the car with a high intensity led lite attached to your forhead and realy scrutinize the wiring and connectors that lead to your transmission and TC. Since your problem is "intermittant" and not constant....that could be a very real possibility. I would especially check the wiring area around the converter housing on teh left side of the transmission as it passes very close to the exhaust manifold, the wiring should go behindthe heat shield. Check that area real close.

Also, you didn't mention this but you should be seeing a "check TOD" lite in RED that is under the TOD meter. This will reset each time you turn the car off, but then show up again after driving a short distance. If you are not getting a "check TOD lite" your problem may be elsewhere??

If all else fails take it to a dealer that has the computer to shoot the "trouble codes". This is a different diagnostic computer than you can get at Kragen or at your local shop and from what I have been told it is only availble at a Isuzu dealership. BTW the sensors are around $235 each. (no labor) although they are not difficult to install I have heard quotes of around $600 labor.

You could solve this problem by purchasing a TC from a wrecking yard and scavaging the sensors ($125-$350) and instdalling them in your unit. Make sure before you buy that the sensors are there. Check: car-parts.com go the home page and follow the prompts.

Good luck

John
ps...download or purchase the CD manual for this car, available on this site, if you do not already have it. It will help you alot.......