Hon Ung

SCS SERVICE TPMS DTC00 DTC B1239 PA 51 ; 1. Malfunction Indicator Lamp is ON ; 2. Electric Power Steering is ON.

Hi everyone,
Recently, I have a problem with the message shown on multi-display screen: "SCS SERVICE TPMS DTC 00 - DTC B1239 PA 51".
Besides that, the malfunction indicator lamp and electric power steering light are on. Sometimes they are on, but sometimes off and on again, they repeatedly unpredictable way.
Checking by myself and surf on the internet, there may be a problem with the gas cap, I remove and retighten the cap, the problem went out but not after a few hours, it appeared again.
Checking the car by a mechanic, with a diagnostic testing machine, but there was no failure be found. After all, the mechanic suggested me to use a fuel injector cleaner to see if the problem still or not.
But the problem still gets stuck, not already solved yet.

I appreciate your help to find the solution to this problem.
Thank you in advance!

Riboflavin

According to the service manual, DTC B1239 has something to do with an electrical problem in the climate control system, possibly a short. Not even sure what the TPMS or EPS light have to do with it, unless there are more issues behind the scenes. Searching for "B1239" in the service manual, got info from a couple of pages:








Not sure how much of a help this is, but you can download the service manual here and see if you can dig anything else up too. Good luck.
http://www.mediafire.com/file/lmhmpo...TL_SM.pdf/file