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After watching some videos, my CTIS lights are not blinking, they are flasshing really fast, almost solid. I did some testing and I was not able to trace/tune the connection from the pressure switch the CTIS harnes, seems like the wire is not going to harness, which does not make sense to me. I...

My LMTV A1 CTIS controller is flashing as well... After studying the threads and the Spicer CTIS Troubelshooting Guide AXTS-0015 I disconnected the pressure switch round electrical harness and shorted the A-B connectors, result was no change in the behavior after turn on/off. After that I...

Thanks for help. I did go an replaced all the CBs with the low tech standard ATC set; had to cramp the fuse beds a bit, and the truck started smooth. I suspect the MAXI fuse size might be even better match, but not certain. If its OK I will start another thread on getting the wipers/horn...

Understood, not getting stuck on the panel/ direct cause / relationship. I was not able to get the A1 starting by switching relays, CBs randomly. Interesting thing is that the cover on panels says all relay's are 12 volts , but I have one 5 prong 24V volt one in panel go figure...( but...

Thanks, I am going to play with the breakers and relays today, have some new ones and will swap some. The 3x4 has been disconnected ( sorry I did not mention that). I will send a pic of that once I figure out the starting issue. It seems like it was "backfeeding" the panel with 24/12 volts...

Thanks for the hint how to take the board off. Indeed there were two loose nuts, on the double connectors, tigten those. Went over the battery terminal and titghten check those, those are pretty much spotless. Was able to manually raise the truck cab; but there were some periods of no...

1. Did check the battery cable terminals; they did look tight and clean, could not wiggle them, will go tight tem up with wrench just in case. 2. There are power connections that come up under the board that are bolted on. You can check that those are tight. David: Are you refering to the...

Thanks for helping me and explaning the main power switches. Please see below answers, hope the formatting will be a OK.. Do you have a crank but no start or no crank? David: No crank, no voltage drop across the start switch. Dash power with the dash switch? 12 and 24 volts to the main posts...

My 2003 LMTV A1 stopped starting. Some history: Generally it was starting like a dream, until the panel or electrical work was done on it.. ( this is the episode #2, the episode #1 ,., was diagnosed as loose battery cable, and supposedly the pushing in the fuses reset buttons..) I was...