audi rs5 2021 SB - Multiple faults
Thread Starter
AudiWorld Newcomer
Joined: May 2026
Posts: 4
Likes: 0
audi rs5 2021 SB - Multiple faults
Hi all,
i started getting these multiple faults fly up on screen;
Stabilisation control Fault
TMPS Fault
Parking Brake Fault
Drive System fault
Sports Diff fault
This would happen every now and then, then disappear! this seems to only happen the next day after i have drove HARD!
The faults have now come up again, they clear but as soon as i drive they pop up instantly again.
when the car is sitting still it idles rough as anything!
Im using a launch 919x reader, and there are fair amount of other faults and mostly they're Databus missing errors.
I personally think its the car having under voltage from the alternator. My battery after a two hour drive was only at 74% with 12.6v when testing the car on start up the voltage at the jump points are only 13.3v.
I put the battery on charge and it got too 98%, left over night with a 11c outside temperature and no percentage drop. The battery is two months old and coded by Audi as i did double check.
Im sure last time i had this problem i changed the battery and I believe once the car is disconnected for more than 10 seconds it re learns everything, so if any modules are in a failsafe mode they release and re learn.
Iv read a fair few forms about people saying ABS/Speed sensors but cant see how it can be.
Anyone else had this problem before
i started getting these multiple faults fly up on screen;
Stabilisation control Fault
TMPS Fault
Parking Brake Fault
Drive System fault
Sports Diff fault
This would happen every now and then, then disappear! this seems to only happen the next day after i have drove HARD!
The faults have now come up again, they clear but as soon as i drive they pop up instantly again.
when the car is sitting still it idles rough as anything!
Im using a launch 919x reader, and there are fair amount of other faults and mostly they're Databus missing errors.
I personally think its the car having under voltage from the alternator. My battery after a two hour drive was only at 74% with 12.6v when testing the car on start up the voltage at the jump points are only 13.3v.
I put the battery on charge and it got too 98%, left over night with a 11c outside temperature and no percentage drop. The battery is two months old and coded by Audi as i did double check.
Im sure last time i had this problem i changed the battery and I believe once the car is disconnected for more than 10 seconds it re learns everything, so if any modules are in a failsafe mode they release and re learn.
Iv read a fair few forms about people saying ABS/Speed sensors but cant see how it can be.
Anyone else had this problem before
AudiWorld Junior Member
Joined: Feb 2024
Posts: 16
Likes: 0
From: N.L Mexico
Hi! I had almost the issue in my A3. I know it's not the same car but the same errors were coming up, also the beep when reversing did not turn on. I suspected it was the battery since I noticed the car struggled just a tiny bit more than usual when starting. I went and set all my tires to the recommended pressure, changed the battery and when the errors jumped after changing the battery I did something I saw on the internet: that you have to turn the wheel to reset errors and then it just got solved. Never saw any of the TPMS, parking or drive system ever again.
With my 1.4T some years ago (I don't have it anymore) but they told me at Audi that a drive system fault can mean the battery is weak if the car drives normally (I don't know why they chose to name it like that, it's so scary).
Hope it helps!
(sorry for the bold font i could not turn it off xD)
With my 1.4T some years ago (I don't have it anymore) but they told me at Audi that a drive system fault can mean the battery is weak if the car drives normally (I don't know why they chose to name it like that, it's so scary).
Hope it helps!
(sorry for the bold font i could not turn it off xD)
Thread
Thread Starter
Forum
Replies
Last Post
dylim
Q5/SQ5 MKII Discussion
12
Nov 10, 2024 09:58 AM
