Cruise control turning off

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Ajwalk2008

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I started noticing today that my cruise control isn't working right. It will turn on while I'm sitting still but as soon as I get around 5mph it will turn off and I am not able to reactivate it after that. I am tuned with diablosport. Has anyone else had this problem?

2005 Dodge Ram 1500 Hemi
Diablosport 91 octane tune


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Bullitt5339

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I've seen 2 things that are usual culprits with those symptoms:

Speed sensor on trucks with ABS (my 1st guess in this case)
Brake pedal switch
 
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Ajwalk2008

Ajwalk2008

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Light Turns off completely after 5mph and can't get it back on over 5mph


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Bullitt5339

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Do you know how to do the key trick for codes?

It really sounds like you have a P1501 going on and it just hasn't kicked the CEL yet. The brake switch wouldn't make the light turn completely off, but a speed sensor will.
 
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Ajwalk2008

Ajwalk2008

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yeah, 3 times. It usually takes a couple tries for me to get mine to work.



I thought it was the same I remembered I did it in my dakota. But will it tell me one that hasn't triggered a cel yet?


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Bullitt5339

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I'm looking at the diagrams, and if I'm reading this right, the front left sensor is the one that can kick off the cruise control without triggering an ABS light.
 
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Ajwalk2008

Ajwalk2008

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Are the sensors in the hub bearing or a separate bolt on?


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Ajwalk2008

Ajwalk2008

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I'll let you know in the morning of any codes. Thanks for your help bullitt getting me pointed in a direction


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Bullitt5339

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No problem. Just FYI for others that may look at this in the future, from my research it seems that this is a Hemi specific problem. For some reason, the other trucks are wired slightly differently which will kick a CEL or ABS light with a speed sensor goes out.

Dodge decided for some reason to kind of leave the left front out of the loop on just the Hemi trucks in 2005.
 
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Ajwalk2008

Ajwalk2008

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I have a pending p1501 code bullitt I'm going to clear it and see if it comes back unless you think otherwise


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Bullitt5339

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I have a pending p1501 code bullitt I'm going to clear it and see if it comes back unless you think otherwise


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That's what I expected. You can clear it, but it'll likely come back shortly. Left front speed sensor will be your fix.
 
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Ajwalk2008

Ajwalk2008

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Left front as your in the drivers seat or looking at the front


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