Medium and Heavy Trucks
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Hi my name is***** is your serial number machine?
Also what fault codes are you getting? Crank no start or no crank no start?
Thanks for the update. Check for power to the small S terminal on the starter solenoid with the ignition switch in the crank position. If there is power and the battery and connections are good it is a bad starter.
If there is no power there with a volt meter or test light then test power out of the ignition switch in the crank position ans if okay then check the wiring harness, fuses, relays as well as the safety switches. Let me know
So let me know the results so I can troubleshoot this. Where was there power and where is ther not power?
How many volts at the starter S terminal in the crank position?
Out of the IGN switch in the same position?
How did you test the relays and the fuses?
Did you do a continuity test on the wiring harness?
I have family visiting but will reply back on my next available login. Let me know the results of the tests. Something is overlooked here. If everything checked good it will start.
There is power to the starter S terminal? If so the solenoid on the starter is junk... Replace the starter or solenoid.