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2017 Ecodiesel code U0402

nathan03100

nathan03100

New Member
Joined
Apr 17, 2023
Messages
2
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Truck Year
2017
over the weekend I had code u0402 show up as a stored code, does anyone have an idea on what to look for and
how to fix it.
 
U0402 fault code in an EcoDiesel refers to a communication error between the transmission control module (TCM) and the engine control module (ECM)
 
is there anything specific I should look for with this code
 
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