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I have a 2012 freightliner Cascadia, I am getting fault code…

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I have a 2012 freightliner...
I have a 2012 freightliner Cascadia, I am getting fault code ECU1 and 2631 5pn.what is the fault and its remedy.
Submitted: 11 months ago.Category: Medium and Heavy Trucks
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Answered in 13 minutes by:
8/1/2017
Technician: cumminsdr, Mechanic replied 11 months ago
cumminsdr
cumminsdr, Mechanic
Category: Medium and Heavy Trucks
Satisfied Customers: 3,847
Experience: All types of Cummins applications
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What is the engine serial number?

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Customer reply replied 11 months ago
I don't have engine serial number but it is a DD 15 engine.
Technician: roybelding, Shop Foreman Freightliner trucks replied 11 months ago
roybelding
roybelding, Shop Foreman Freightliner trucks
Category: Medium and Heavy Trucks
Satisfied Customers: 7,721
Experience: Shop Froeman for Freightliner Trucks
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