Ctrl Module faulty

[ultradmp]

Ctrl. module faulty

Fault code:
B200004

Status:
static

Priority
4

Malfunction frequency counter
1

Unlearning counter
255

Mileage
44032.23 miles

Dynamic environmental data
ЗА3Е33533353334517501B02A09004E00000119F00770 097
010000001C0100000001175600000002

Date
2023-04-02 12:04:14

I just saw this faulty. What does it mean?
What should I do?

[c99]

Which control modul?
Car has got around 20 control moduls.

[ultradmp]

I don’t know…what I upload is all I could see

[Smac770]

What are you using to read this DTC? What control module was it connected to when it presented this information?

[wwhan]

+1

What are you using to read this DTC? .....

What are using to scan the codes?

You need to look at the whole system and details.

I have Ross-Tech VCDS & OBDeleven.

One phantom code from a module can cause a DTC. Here is an example of a DTC Fault code:
B200004 phantom code from a 2020 Q3: https://static.nhtsa.gov/odi/tsbs/2020/MC-10171346-0001.pdf

[ultradmp]

+1



What are using to scan the codes?

You need to look at the whole system and details.

I have Ross-Tech VCDS & OBDeleven.

One phantom code from a module can cause a DTC. Here is an example of a DTC Fault code:
B200004 phantom code from a 2020 Q3: https://static.nhtsa.gov/odi/tsbs/2020/MC-10171346-0001.pdf

I was using OBD11
Your Q3 problem has solved?

[Smac770]

OBDeleven, that's common enough platform that how to use it should be readily available. To look at the error, I assume you had to go into one of the control modules, which one was it?

Or just find the history log after a full vehicle scan and post that, at least then the state of all the car modules will be seen.

The TSB referenced refers to the MIB2+ unit, the J794, at 5F - information electronics. What model year is your A5? Is it MIB2 (rotary dial) or MIB3 (touchscreen)? Is its software up to date?

Have you been using OBDeleven to make modifications to the vehicle?

[ultradmp]

OBDeleven vehicle history log
Date: 2023-04-21 20:29:31

VIN: WAUBNCF5XJA094900
Car:
Year: 2018
Body type: Sportback
Engine: CYMC kW ( hp) l
Mileage: 44273 mi

---------------------------------------------------------------
46 Comfort System
System description: BCM2 MLBevo
Software number: 8W0907064EC
Software version: 0387
Hardware number: 8W0907064DC
Hardware version: 025

Faults:
B200004 - Ctrl. module faulty
static
Priority - 4
Malfunction frequency counter - 1
Unlearning counter - 255
km-Mileage - 70863 km
Dynamic environmental data - 3A3E33533353334517501B02A09004E00000119F0077009701 0000001C0100000001175600000002
date - 2023-04-02 12:04:14

B16D531 - left tail lamp 2
No signal
Intermittent
Priority - 5
Malfunction frequency counter - 16
Unlearning counter - 126
km-Mileage - 71010 km
Dynamic environmental data - 3A3E2F582F4A2F4A17501B00AA1026E000000000008E009601 000000220000000001175500000000
date - 2023-04-16 10:45:20

B16D431 - left tail lamp 1
No signal
Intermittent
Priority - 5
Malfunction frequency counter - 16
Unlearning counter - 126
km-Mileage - 71010 km
Dynamic environmental data - 3A3E2F582F4A2F4A17501B00AA1026E000000000008E009601 000000220000000001175500000000
date - 2023-04-16 10:45:20

B16D631 - Right rear tail lamp 1
No signal
Intermittent
Priority - 5
Malfunction frequency counter - 16
Unlearning counter - 126
km-Mileage - 71010 km
Dynamic environmental data - 3A3E2F582F4A2F4A17501B00AA1026E000000000008E009601 000000220000000001175500000000
date - 2023-04-16 10:45:20

B16D731 - Right rear tail lamp 2
No signal
Intermittent
Priority - 5
Malfunction frequency counter - 16
Unlearning counter - 126
km-Mileage - 71010 km
Dynamic environmental data - 3A3E2F582F4A2F4A17501B00AA1026E000000000008E009601 000000220000000001175500000000
date - 2023-04-16 10:45:20

U112100 - Databus missing message
Intermittent
Priority - 6
Malfunction frequency counter - 29
Unlearning counter - 126
km-Mileage - 71031 km
Dynamic environmental data - 3A3E309E309E309E175040040A120498000000000092009301 000004220000000001175500000000
date - 2023-04-16 11:19:44

[ultradmp]

By the way the tail lamps are fine as usual.
I changed all the codes that I changed before.

SBBR-variant (I don’t know what it is, but it’s in the history. I changed the value to 0 from 2)

Intelligent_tail lamp 1,2,3,4 (changed to not installed from installed)

That’s it. I didn’t change anything other than those.
and there is one thing coming out in the history
ADDED - (C8) Auxiliary Display Control Unit 2 in 5F - Multimedia

There is Engine Start System: malfunction error keeps coming out.

[Smac770]

"ADDED - (C8) Auxiliary Display Control Unit 2 in 5F - Multimedia" So why was that done? Do you even have one of those? Looks like more OBDeleven "we're going to make a bunch of random changes to the vehicle configuration and screw something up, because that's what we do". Databus missing message typically means something is misconfigured. Either an unsupported option was enabled, or some device that isn't there is configured as being there, etc.

From what I can find, Aux Display Control Unit 1 and 2 are a VW thing. We see this as well in that the adaptation list for an A3 MIB references the two control module names, while the adaptation list for an A4 MIB does not.

You probably need to go into the installed modules list (should be under 19-can gateway) and uncheck C8. We see the MIB J794 (5F) has measuring values for the installed modules list, which means it's probably seeing the setting and wondering where this control module is, it's not responding.

"SBBR-variant", I don't know what it is or does, but I changed it for the fun of it. ....? Apparently selects the variation of tail animation, with a value of 0, 1, or 2. Ie, frivolous stuff.