Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post

Jynx · 02-04-2022, 09:36 PM

hey guys i have a 2013 BRZ with about 129k miles on it and i am having some troubles with the u0155 code. What happens is i dont get the code if i dont use cruise control or sport mode. if i turn on cruise control, it will work for about 5 mins and then the car will just freak out and go into limp mode and i cannot turn off cruise control and i get and engine light with the code u0155. the cruise control light will stay orange until i unplug the battery. it also happens when i put the car in sports mode. what will happen there is i put it into sport mode and after about ten mins, limp mode and engine light again with code u0155. my question is has anyone had this issue? could it be a bad wiring harness? maybe a bad ecu? grounding issue? where should i start to figure this out? thanks fellas.

02-04-2022, 09:36 PM	#1
Jynx Member Join Date: Feb 2022 Drives: 2013 Subaru BRZ Location: AZ Posts: 80 Thanks: 0 Thanked 23 Times in 15 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Having trouble with code u0155 hey guys i have a 2013 BRZ with about 129k miles on it and i am having some troubles with the u0155 code. What happens is i dont get the code if i dont use cruise control or sport mode. if i turn on cruise control, it will work for about 5 mins and then the car will just freak out and go into limp mode and i cannot turn off cruise control and i get and engine light with the code u0155. the cruise control light will stay orange until i unplug the battery. it also happens when i put the car in sports mode. what will happen there is i put it into sport mode and after about ten mins, limp mode and engine light again with code u0155. my question is has anyone had this issue? could it be a bad wiring harness? maybe a bad ecu? grounding issue? where should i start to figure this out? thanks fellas.