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Old 09-18-2014, 09:40 AM   #29
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Alpine Owners Club
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Location: Vancouver, WA
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Ok, for all the people out there, who are boomers, and thinking about one of these. Machinery (Think Motorhome/Trailer/Truck/car) needs to run. As a minimum all the systems in one of these need to work 2 hours a month every month of the year. If you sat in a chair for a year, you would not start either, this stuff is not rocket science, if its in storage, and you can physically get to it, start it up, run the genset to charge the batteries, turn on the water heaters, furnace, level the thing, put out the slides, run everything. No wonder it was dead. Most likely the ECM was fine, but I would imagine, the batteries were dead, severely sulfated, and it may have taken a power surge if plugged in all the time, that could have killed the ECM. They may need standby voltage all the time, so that would place a parasitic load on the batteries if not plugged in, causing them to discharge to ZERO and that might have killed it. Treat the RV like you want to treat yourself, it will last longer.

Monty & Janet - 2007 Alpine APEX 40 MDTS
S/N - 75715 - Retired - Master Certified RV Tech
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Old 09-22-2014, 09:35 AM   #30
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Location: Auburn, CA, Havasu, AZ & Mulege, BCS
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Cruise activates via signal thru the SmartWheel based on the pad-switch in the steering wheel. I don't know if Cummins can "set" cruise via their software during a test drive, but that would eliminate Cummins as the culprit if they could, and indicate its in the SW wheel or module. If Cummins can't activate cruise by software to prove their stuff works, then they can't eliminate themselves or the ECM connectors as potential issues just cuz a parameter is checked.

Cruise control functions at the SmartWheel can be diagnosed using the tests described in the SmartWheel Troubleshooting Guide under Chassis in the ACA Tech Library.

Baja-tested '08 2-slide 36'
Alpine: The Ultimate DIY'er Project
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Old 09-25-2014, 11:38 PM   #31
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Seems to me if it worked prior to the new ECM, it should work now, unless something else was removed or replaced with this repair. Changing the ECM should not effect the Smartwheel, nor it's workings, unless somehow, there was a surge of voltage when the ignition was enabled and allowed the SW system to take a hit. Again, Cummins needs to get their act in order, go directly to the service manager of the facility or if that does not work, I can send you the name of a high level person at Cummins who helped resolve for me work which was not done correctly at one place and another facility had to fix it, and I was not charged. Send me PM if you need that information.

Monty & Janet - 2007 Alpine APEX 40 MDTS
S/N - 75715 - Retired - Master Certified RV Tech
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