Aftermarket "Plasa" CTIS Controller Not Functioning

[hike]

Default pressure is different for different trucks. 55 psi on most. M1088 and M1089 run 81 psi for highway. There is no standard default - it depends on the chassis harness configuration so that if you swap modules between trucks it will load the correct pressure for that chassis. That's what the option pins are for - to tell the controller what chassis it's installed in.

Unless you install an old controller in a newer truck; then you may run a foul the J1939 circuit instead—

 

[GeneralDisorder]

Unless you install an old controller in a newer truck; then you may run a foul the J1939 circuit instead—

Yes - then you need to snip the bus pins. Not a deal breaker if you know about it.

 

[hike]

Yes - then you need to snip the bus pins. Not a deal breaker if you know about it.

Been there, done that—

 

[Reworked LMTV]

I have one of Plasa's CTIS controllers. It works well. I appreciate his generous efforts and was well aware of prototypical approach. It was very inexpensive. He has provided support. He has a lot on his platter and this is not his day job.

 

[Plasa]

Thank you for your kind words! It's always hard to identify problems from distance. I try to do my best...

Christian