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Old 03-26-2023, 12:36 AM   #1
Junior Member
Join Date: May 2022
Posts: 2
2009 ISL intermittent Brake Actuator error

I have a 2009 ISL [Nemar Mountain Aire] and on the last trip, I started to have an engine check light going on for 1-2 seconds at random times. The fault code is 2367 [1073 3]

Interestingly that going downhill with the engine brake on, I would not get the error and the engine brake would work fine. However, on the flats it would go on every so often, sometimes 10 times in a minute, sometimes nothing for an hour. I can take the bus to Cummins or a local bus shop, but given that error only sometimes not sure what they can do.

Any recommendations?

Thank you,

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Old 03-27-2023, 06:47 AM   #2
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Holiday Rambler Owners Club
Join Date: Apr 2020
Location: Farmington Hills, Michigan
Posts: 809
Not familiar with your coach, where did you get that fault code from, dash display?
Might be just a bad/intermittent connection and checking those might solve the issue.

You might want to get an external code reader as that's the first thing Cummins would check. I've seen recommendations for displays like "ScanGauge D" (unless you already have a smart display) and "NEXAS Heavy Duty Truck Scanner NL102..." (external reader) etc. Different systems but should get the same results.

Then create an account in Cummins QuickServe with your engine serial #. You probably get more accurate info for your particular engine than generic internet sites.
2004 Holiday Rambler Imperial 40PKD, Cummins ISL 400
2019 Buick Envision AWD
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Old 03-27-2023, 07:58 AM   #3
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Thanks, but the code came from ScanGauge D and QuickServe doesn't have any additional info (the link I posted was easy to link to). Printout from QuickServe : QuickServe Online _ (5612992)***ISM CM876 Fault Code Troubleshooting Manual.pdf

Also, I mistyped it, it is ISM, not ISL engine.
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