Re: Ultramatic - stuck in park

Posted by Ross On 2023/7/29 20:17:01

On the push button unit a frequent failure mode is that the motor coasts too far after it has been told to stop and consequently the contacts have gone past each other so the shifter no longer knows where it is, so to speak. You have to fool the control relay to make the motor go in the correct direction til it finds itself. You wish the motor to move away from park.

Turn the key on but do not start the car. Punch D or H. Now take a little jumper wire and jump from the + terminal of the battery to the Pink wire on the shifter relay--the one with the 6 connections. Do this only briefly about 1/2 second. That will start the shift motor in the direction of D and once the contacts find each other you will hear the unit complete the shift. Then put the car in N and go about your normal business.