Mkay, here comes the next one - this one is for those of ya'll who want to have "manual off" mode in addition to the "auto" and "manual lock". Since this makes three modes total we need a 3-position DPDT switch, in other words an On-Off-On (also known as "center-off) DPDT switch, and to make use of its center off position we'll need another 5-pole relay as well (the switching relay in the diagram attached), and there is also a diode to prevent current from backfeeding where it don't belong.
So what happens now is one of the end positions of the switch is the "manual lock" mode, like with the other setup when that is selected the converter will stay locked all the time in 3rd and 4th gear regardless of whether brakes are applied or not, until you either flip the switch back to "auto" mode or slow down enough to where the transmission drops out of 3rd gear. Converter will NOT lock in 1st or 2nd gear.
Next we have the center position of the switch, in which there are no currents at all passing through it, however this actually defaults the switching relay to its 30-87a pin bridge and at the same time bypasses the protective relay, thus the PCM gets connected to the TCC directly as if no mods were ever done to the system and so TCC operation is back to factory settings. The protective relay is bypassed in this "auto" mode so even tho it still clicks on and off as the transmission shifts between 2nd and 3rd gear it has no bearing on the TCC lockup
Finally, the other end position of the switch - this is the "manual off" setting, converter remains unlocked no matter how you drive your truck and what the PCM may have to say about it. Actually, the PCM shouldn't say anything, as it gets fed the dummy signal through the 22k resistor so for all intents and purposes it doesn't even realize the converter is not really doing what it commands it to do.
Wiring code:
- purple wire with yellow tracer - responsible for TCC operation, this is the one inside the transmission harness that you cut and extend both ends and feed them into the cab, the end from the TCC goes to the relay and the end from the PCM goes to the switch.
- orange wire with yellow tracer - responsible for SS1 operation, lives in the transmission harness, however this one you do NOT cut, just a splice another wire into it and feed the new wire in the cab to the relay.
- red wire - you need to add this one, use one of these "Add-A-Circuit" fuse holders that can be found at about any decent parts store, they're good for up to 10 amps on the aux circuit but you won't be pulling even half that.
-green wire - you need to add this stuff too, this is for the dummy signal resistor for the PCM and also the protective diode so the switching relay don't go nuts cycling on-off-on-off when you select the "auto" mode with the switch.
- black wire - this is the ground that will lock your converter when you select "manual lock" mode, so make sure it's grounded real good.
- gray wires - those are optional, they are for the three LEDs: red LED is on when the converter locks in "manual lock" mode, blue LED is on when you're running in "manual off" mode, and yellow LED comes on to warn you the converter will not lock cause the transmission is not in 3rd or 4th gear yet - again you can wait for the yellow to go off and then switch between blue ("manual off" mode) and red ("manual lock" mode), or you can just place the switch into "auto" mode and ignore the yellow LED entirely. I can't give the "auto" mode a green LED like last time unless I add yet another 5-pole relay which would be slightly excessive, but if someone wants it I surely can add it in the diagram...