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- Location
- Portland, OR
CTIS is one of the coolest features on our trucks. I’ve been wanting to make a bench testing harness for quite some time, and I finally got around to it. It’s part of the forum lore around here that the controllers are unreliable. In practice I think they are extremely robust. I bought a pile of “bad” ones off eBay and so far they are function checking perfectly. It amazes me how many of them have stored codes for all kinds of wiring issues. Similar to my testing with the 100a alternators, it seems like a very large portion of “bad” units are suffering from terrible in-truck wiring issues, and actually have no problems whatsoever.
Anyways I’m having fun with it. It has J1939 and J1708 support and a switch to simulate the tank pressure switch. I would like to add a small pressure tank to test that PCU solenoids are strong enough to hold pressure and don’t leak.
Anyways I’m having fun with it. It has J1939 and J1708 support and a switch to simulate the tank pressure switch. I would like to add a small pressure tank to test that PCU solenoids are strong enough to hold pressure and don’t leak.
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