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cumminsdr
cumminsdr, Mechanic
Category: Medium and Heavy Trucks
Satisfied Customers: 3539
Experience:  All types of Cummins applications
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I have a "sim no j39 data" display in my smart craft moni

Customer Question

Hi I have a "sim no j39 data" display in my smart craft monitor today is Saturday and I can't find anybody to look it up what can I do?
Submitted: 1 year ago.
Category: Medium and Heavy Trucks
Expert:  cumminsdr replied 1 year ago.
Hello and welcome to Just Answer! I would be more than happy to assist you today.check the engine fuses and power connections, you may also have a bad SIM modual, to test you can swap Sims from port to stbd to isolate
Expert:  cumminsdr replied 1 year ago.
Hi just following up. Please don't forget to rate my service.