Help Needed: Error Codes

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#11

01-04-2019, 11:16 AM

CROCK

Junior Member

Join Date: Jan 2019

Location: Delta, OH

Posts: 2

Quote:

Originally Posted by grim_reaper

U codes are purely communication faults, usually they are nothing to worry about.

Put a new maf sensor on it and took care of all the codes for some reason, communication codes are now gone along with other codes, must have a fail safe if maf goes bad. Strange

#12

01-05-2019, 03:54 AM

grim_reaper

Super Moderator

Join Date: May 2012

Location: Queensland Australia

Posts: 7,429

Quite often faulty components can corrupt signals and appear as U codes.

#13

01-26-2020, 10:51 AM

Laurentiu Sebastian

Junior Member

Join Date: Jan 2020

Location: Bucharest

Posts: 1

Hello everybody! I own a 2015 Mazda 6 2.2 diesel. I got engine check light and errors with SCBS, DSC (dinamic stability control) and TCS (traction control) warning light . I ve tested the car, and for the check engine light I have P0101 code (mass air flow sensor), and for the rest U0433, U0401. Did you have this problem and how did you fix it? Do you believe that by changing de MAF the other symptoms ( SCBS, DSCM ,TCS) will disapeare??
Thank you and sorry for my english.