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ECM power supply lost with ignition turned on...
02-14-2018, (Subject: ECM power supply lost with ignition turned on... ) 
Post: #8
Contributing MemberZeroNthedark Offline
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RE: ECM power supply lost with ignition turned on...
(02-13-2018 )Rawze Wrote:  Cummins code 1117 (Power Supply Lost With Ignition On - ...)

Had a very similar code, 0434, after a breakdown. Truck was running fine, went to upshift, and kaput! Died and wouldn't restart. Went through the trouble shooting tree until I found that my cranking voltage was under 6 volts. Replaced the 4 year old batteries and no issues since.

Don't know if that was really the reason or not, but since it worked that's the story I'm going with.

Great tip about the ECM being a problem.
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RE: ECM power supply lost with ignition turned on... - ZeroNthedark - 02-14-2018



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