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This for sure. It's MIL standard, and not just a brick of diy electronic... Christian

Sent you a PN... :-)

Getting the board inside the dash is quite easy, the buttons can also be single buttons, in total 6 wires... I would keep the original connection plug as it's easier to handle. Christian

One solution could be to check if pressure when inflating is below the preset. This means that there is not enough pressure in the tank and that the tires will deflate instead of inflate. Doing so it can be avoid that the pressure in the wet tank gets below a critical level. Than it can be used...

That's easy, it's just inverting the boolean value. But it's a risk because with no signal the controller thinks he have full tanks. So there is no protection against wiring failures. Christian

Hello! Yes, I use the wet tank input switch. There is no need to change any logic input, the original one close the signal to ground at 120 and reopens at 80 or something like that. At least you use a switch to ground you can use anything. Important is that it's closed to ground when you want to...

Yes, they work also on A1R because no connection to the can bus is needed. The CTIS is almost isolated from the rest, except the speed sensor signal. But that I do not use. I also rebuild the controller to be more failure save against electrical issues. Plus it now have 5 presets instead of 4...

It's the ufficial dana/spicer ctis troubleshooting manual. Christian

I bought them all from finditparts, single order, same sku no... I will check the spare seals if there are some diffrences... Christian

No, the direction of the seal was correct, the internal diameter was diffrent....

Thank to Ronmar I figured out that a CTIS seal (new one) for some reason was loosing air when under pressure. The ctis seals have 2 lips, one on each side. I measured the lip on the air side andit was 0.015 bigger than another spare seal. Remounted everything and now works again. If you do a hub...

Thank you sir! Indeed probably was the outside ctis seal leaking. Even if it was brand new it was 0,4mm larger than others. probably this was way too much to close when on pressure. Tomorrow I will finish mounting the hub and let you know! Thank you again! Christian

Hello guys. Sorry to bother you, but I have a question about ctis and the front axle. I rebuild my front axle due ctis seals replacement. it should not be the reason, but now if I power on the ctis and the system is pressurized, the front axle and differential is also under pressure and air...

Tried, but I already destory 1 ear... :-(

Hello guys. Today I tried to do the brake maintenance of my M1078 A0 truck. The brake itself was quite easy to rebuild, but I was not able to loose the nut that fix the brake chamber, to be able to unscrew the chamber from the brake assembly. How did you loose that nut, or can I try with a big...

Yes, it's available... Christian

It goes nearly down till bottom of the bumper, to cover also the 2 air inlets. What I like is that I can flip it up to get some air through the radiator if temperatures rise. Plus I do not need to rise the cab. At that temps I prefer to be fast. At -30C engine temp is around 95C, at -10C I can...

Not the nicest hack, but works for me: It's a thermo cover for windows, punch a few holes, few cable straps and you're done. Worked for me also at -30°C, and you can easily flip it up if you are on highway and engine get's hot. Christian

Thank you sir!

Deleted due forum roles. Christian