Bad Ignition - Ignition Off and RPM non Zero

Discussion in 'Experienced Truckers' Advice' started by TheGrimReefer, Mar 5, 2015.

  1. TheGrimReefer

    TheGrimReefer Bobtail Member

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    Feb 11, 2015
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    Any idea what that means? My company uses sattelite tracking and under "Faults" this appears a lot. I know some other faults are No Power and HARD BRAKING, but I have no idea why I get this one so much.
     
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  3. Moosetek13

    Moosetek13 Road Train Member

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    You may have a bad sensor.
     
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  4. TheGrimReefer

    TheGrimReefer Bobtail Member

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    I have the MCP50, it seems from some research that it might be wiring. The mecahanics here suck.
     
  5. G.Anthony

    G.Anthony Road Train Member

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    Could just be a bad/defective ignition switch?

    With the humongous amount of times we turn it on and off,

    As if I were a mechanic, I'd at the very least start at that point?
     
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  6. TheGrimReefer

    TheGrimReefer Bobtail Member

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    Feb 11, 2015
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    Thanks G,

    I'll have to get them to check as this message comes up EVERY time I start/turn off the engine.
     
  7. G.Anthony

    G.Anthony Road Train Member

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    I had a pro star, my first truck at my current employer. The ignition switch was going bad, but I never got such a message. You might be lucky at least, that you get this warning of a "possible" bad ignition switch. If it is easy to get at, trust me, the mechanic will just switch it out for a new one.
     
  8. s0231198

    s0231198 Light Load Member

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    If you can access the wiring, check the white wire in the wire bundle and to wherever it is spliced into a 12 volt ignition switched source, sounds like it is coming loose someplace if you are getting ignition off, and check the fuse in the wiring also. The ignition source wire in my truck runs to the fuse box to a "fuse splicer" (not sure what it is called but can pull fuse out and place this in and then place fuse in back side of it and will take power from that fuse socket) that is on a ignition switched source not directly to the ignition switch.
     
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