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Code U0402

J

JasonF

New Member
May 28, 2019
1
0
Truck Year
2017
My engine light just came on, on my 2017 bighorn eco diesal and i hooked up my code reader and it gave me the code U0402 does anyone know what this code means?
Jason
 
BoostN

BoostN

Administrator
Staff member
Administrator
Jul 27, 2013
4,291
1,127
Truck Year
Not Listed
U0402 Invalid Data Received From Trans Ctrl Mod

Clear the code, unhook the battery for a ~2 hours, also check the connection on the side of the frame into the harness. It will likely clear after that.
 
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