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'20 CT4 w/P04FB code

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16K views 40 replies 17 participants last post by  klahache19  
#15 ·
I just got the same code,P04FB. Cleared once then came back maybe 12 hrs later during a remote start attempt. Does in fact prevent remote start it seems. Its under factory warranty i believe, so im gonna call the local dealer.

Looks like it may have triggered a few other codes, cause scanner shows failed then successful; U04220, U0447, U0131, U1616, U1611.

It has been rather code lately, 20F and below.

2023 CT4 2.0 RWD
32200 miles
 
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