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Discussion Starter #1
I’m working on a 1999 MT45 with a 5.9l cummins 24v Alison transmission.
I am not getting a response on the throttle !
Any idea what could be causing this ?
Engine number is 56552519 if needed.
Thanks
 

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Discussion Starter #3
Had a tech scan it and it’s gettjng Voltage/ response from the peddle to the ecm, now we going to go thru the wiring from the pump to the ecm
 

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What was the letter in front of the code?
That's either a throttle position sensor or a Transmission ECU to ECM Communication Lost .
If it's intermittent check the connections.
If the truck is constantly dead pedsl, it sounds like the calibration file needs to be reloaded by someone with Insite.
 
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