Скачать или смотреть Cummins tc lockup switch or mystery switch.

Tc lockup switch installed in a 2nd gen 99 ram 3500. I installed it using 3 relays and I also tied it in with my brake pedal so I don’t forget to unlock it. Easy install I have a diagram drew up if anyone wants to setup theirs like this. I installed mine like this to keep the factory relay in so I don’t have check engine lights. And so I don’t need to lockup every time. My truck shift as it normally would without having to lockup manually. Good luck. Use at your own risk.








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