08 Prostar ignition wiring

Ok, at the key switch, the red wire (A15) is power coming in from the fuse panel, should have power all the time. The light blue wire is power feed to accessory circuits, (A12). Pink wire A13F is ignition power out. This wire will power the ignition relays. The ECM is powered usually from ignition relay #1. Pink wire A17HA from your key switch is starter power. So they jumper power to your accessory circuits. This will not prevent the engine from starting so something else is wrong. The pink wire A13F is what you need to focus on. Make sure Ignition relay #1 is working.

 

Heavy, thanks for what you do on here

 

I have a fleet with 5 prostars in it you have helped a lot. I just had one with an electrical fault in a 2010 daycab Wound up being poor connection at f4d. Just so you could pass it on thanks again for all you do

 

Happy to help!

 

I have 2014 prostar w/isx-15, as soon as I turn key to on position ...key switch circuit breaker pops up... can anybody help me with this

 

Is this F3-A? After the ignition switch, it triggers all the ignition relays along with auto start stop if equipped. Nothing else is suppose to be powered by this but we see installers tap into this for e-logs and satellites sometimes which could be causing your problem.

 

I have an international pro star 2009 Cummins engine that is giving me lots of trouble. It begins to “jerk” and turns off. I have a code for low engine pressure. Not sure that is the true problem since the engine control module has been giving codes for parts that didn’t need repair. Could it be something electrical?? The engine control module was recently reprogrammed