Search results

No - but all you need is 4 wires and some connectors in principle. This page has the J1708 pinout: https://www.diesellaptops.com/blogs/news/troubleshooting-j1708-connections Then you need an RP1210 compliant adapter such as the Dearborn Protocol Adapter III or IV. Laptop and software.

Hate to say it but instead of guessing you *could* build the interface cable, download the free software from Dana and know what the problem is *for sure*. Do the A0 trucks have ABS? I have the Wabco software too - identified a dirty wheel speed sensor on a truck with it yesterday. Huge time...

Yeah - I would set the governor pressure to 125, rebuild the PCU, and check that the vent line is clear. That's a good place to start.

I haven't run across a PCU that didn't need rebuilding yet. You can get new spool valves and o-rings from a couple different vendors. First time I powered mine up it started venting under the dash and wouldn't stop. And my truck is a 2008.

I can't recall..... It may after a period of time or after it sees enough vehicle speed for enough elapsed time. I just figured it's a good first check since the controller won't really do anything till it sees enough system pressure so no sense messing with the wiring till you determine that...

My truck had an incorrectly set unloader and the CTIS controller reported a pressure switch malfunction. My switch was fine the system just wasn't reaching the pressure set point. Controller can only assume the switch is bad

Lets start with basics. First - lets assume (I know.... but for the sake of some simple checks) that someone screwed with the wiring to try to hookup to the unit and communicate because A0 trucks don't have coms ports - they are supposed to use a breakout cable that's never around when you need...