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Mystery switch not working

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When I first hooked up my mystery switch it worked great. Now it locks the convertor for maybe half a minute then it unlocks and I have to turn the truck off before it will work normally again. Gives me p0723 code which I had before too when it worked normally. p.s. I took the switch and wiring out when the truck went to the tranny shop for the rebuild cuz I didn't want them down my throat for using it. This problem occured after I got the truck back and rewired it.

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Can anybody offer any advice?

Did you forget to take out the relay and put your jumper wire back in? I did that once and it caused limp mode. Just thinking out loud.Posted from my mobile phone while not driving....

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That's what it was! Thanks a bunch:thumb1:

I did the same thing last time I left the country for a year and when I got back it took me awhile to figure out what the problem was.:doh:

I did the same thing as well. Put the relay back in when I took the truck to the dealer to have key fobs programmed. Did find out that if you wire in a 33 ohm resistor into the ground wire you can leave the relay in and not cause any codes or limp mode when you use the switch. I read it and tried it, worked on mine and now I don't have to worry about putting the relay back in and forgetting it again. :thumb1:

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    Welcome To Mopar1973Man.Com LLC

    We are privately owned, with access to a professional Diesel Mechanic, who can provide additional support for Dodge Ram Cummins Diesel vehicles. Many detailed information is FREE and available to read. However, in order to interact directly with our Diesel Mechanic, Michael, by phone, via zoom, or as the web-based option, Subscription Plans are offered that will enable these and other features.  Go to the Subscription Page and Select a desired plan. At any time you wish to cancel the Subscription, click Subscription Page, select the 'Cancel' button, and it will be canceled. For your convenience, all subscriptions are on auto-renewal.