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Old 09-19-2021, 09:35 AM   #1
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Allison MD360

I am looking for some technical help. I have a custom built truck with a detroit 653 engine, and now trying to use the md360 trans. We get some trouble codes and think i may have a bad ecu. Not getting the voltages out i think i am suppose to. Is there anyobe out there thst can help???
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Old 09-19-2021, 10:16 AM   #2
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Quote:
Originally Posted by Rjarvis01 View Post
I am looking for some technical help. I have a custom built truck with a detroit 653 engine, and now trying to use the md360 trans. We get some trouble codes and think i may have a bad ecu. Not getting the voltages out i think i am suppose to. Is there anyobe out there thst can help???


With the serial number of tranny Allison might be able to help also.
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Old 09-19-2021, 10:18 AM   #3
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Welcome to iRV2

Are you by any chance referring to a 3060 series Allison ?
Do have the push button shift pad and you're retrieving codes from it ?
Any idea of the age of the transmission and what control system you have?

WTEC II; III or IV ( World Transmission Electronic Controls )?
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Old 09-19-2021, 10:25 AM   #4
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Verify 12 VDC positive to BOTH ECU inputs and good ground.


Then, check for DIAGNOSTIC CODES using the Allison shift pad.


And, yes, suspect it is an Allison MD3060. Diagnostic codes can be found on-line.
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