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We have a 41 foot Thor Motor Coach equipmed with a Cummins…

Customer Question
We have a 41...

We have a 41 foot Thor Motor Coach equipmed with a Cummins ISL 8.9L engine with 450 HP,. We just drover 200 miles and when we shut off the engine we are getting a high pitched noise and an error code of "No J1939 Data Found". Can you help us understand what this means????

Mechanic's Assistant: What is the complete model and serial number of your machine?

Are you asking of the motor coach?

Mechanic's Assistant: Anything else you want the equipment mechanic to know before I connect you?

I have no idea, this is all new to us. What serial number are you reffering to?

Submitted: 10 months ago.Category: RV
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Answered in 13 minutes by:
9/29/2017
RV Mechanic: Daniel Wilson,
 replied 10 months ago
Daniel Wilson
Category: RV
Satisfied Customers: 6,887
Experience: Owner at DJ Wilson
Verified

Hi, My name is***** will be glad to help J1939 is the datalink connection the ECM communicates on. This is an indication of either a wiring harness problem to the ECM, a loss of communication from a loss of power or ground to the ECM, or if all checks okay a possible faulty ECM. Let me know if you need more help. We can follow up as needed

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