Today I wired in a lockup switch, into an existing switch panel I have that has b+ to the switches. I ran the switches wire to a relay and when I flip the switch it sends positive to the relay. The relay sends ground to the b11 orange/black wire on the white middle connector, problem is it seems when I turn the switch on it unlocks the converter and my speedometer stops working, anyone seen this? Thanks

Edited January 29, 20232 yr by HitCast

@IBMobile is a wizard with lock up switch set ups. I've seen his truck and it works awesome. He would be the best to chat with. Sadly I've never even played with a automatic and lock up switch.

No, I've never seen that, but this is what worked for me.  The relay should have the switched 12 volts going to terminal 86 and terminal 85 is the relay ground.  Relay terminal 30 would be connected to the orange/black wire at PCM B11 and terminal 87 going to ground with a ½ watt 33 ohm resistor inline.  The "grounding relay" on the right side of the diagram below is how it should look using your rocker switch where the toggle/foot switch is shown.