Tow button does not work on my shifter handle

More than likely the wires are broken at the base of the column shifter. If they are you need to replace the shifter. You can also extend those wires to a momentary switch and mount it in the dash somewhere.

Does the vehicle start an run ? If it does ,the brain as you call it is working fine . The check engine light has nothing to do with the PCM /ECM sensing problems .You probably should take your vehicle to a qualified repair shop .

Its a common problem. The factory installed the wires too tight, and the shifter will actually cut them in two. Remove the trim to get to the wires, and wire in some more length to give the wires room to let the shifter move without putting strain on wires.

The wires are probably broken. They follow the shifter down into the steering column. After many years of shifting the wires break. You can find the wires inside the rubber piece that surrounds the gear shifter. They're orange. You can splice them and put them back in.

check your wires at the connection that goes to the tow haul button. under the plastic cover where the shifter connects. i ohmd the shifter to make sure it works when pressing the button and checked to see if power was coming up. first check the fuse. i had to ohm the two wires that went to the pcm and that is where i have my problem i think it is in the fitting . could be anything but i would start at the fuse then the shifter..

If this is a floor shifter or center console shifter there is actually a lock release next to the shifter. Look next to the shifter handle and you should see a small square plug in the console remove the plug and you will see a little white button in it this is the shifter release push it and you can move the shifter.

It seems to be stuck in 4x4 still. There could be damaged done to the powertrain by the towing company. Therefore they should be held accountable for the damage and repair that will be needed. You never tow a vehicle in 4x4 it should be carried on a flat-back. Same with AWD vehicles. The towing companies are well aware of this, is their business to know. Make sure to disengage the 4x4, put the 4x4 shifter on the floor in neutral while in park or not moving. If you continue to have problems contact the towing company and hold them accountable for it. See what you can work out with them. If they tell you they are not responsible then contact a lawyer and make them responsible for it.

shifter handle has clip on it to remove it

i think you might mean "od off". that means overdrive for the transmission. the button for that may be on the shifter handle or a button on the center dash board. unless youre towing or need a bit extra power you would generally leave it "on" with no lite on dash

THERE HAVE BEEN ALOT OF PLOBLEMS WITH THE SHIFTER HANDLE/SWITCH. THE BEST WAY TO VERIFY CONCERN IS USE A DIAG. SCANNER & VIEW TRANSMISSION DATA DISPLAY WHILE ENGINE RUNNING. THE SWITCH IN THE SHIFTER IS FAULTY. IF YOU SEE NO INPUT CHANGE WHILE DEPRESSING SWITCH THIS IS YOUR CONCERN.