Comfort control unit no longer responding

Hello everyone,

Volkswagen Golf IV, engine code ARL, Highline trim level.

From one day to the next, the comfort control system (46) stopped responding.

The control unit has been displaying the following error for some time:
Sure, here is the translation of the text from German to English:

"2 errors found:"
01330 - Comfort System Control Unit (J393)
53-10 - Insufficient power supply - Intermittent.
00928 - Door lock module for central locking system, driver's side (F220).
27-10 - implausible signal - sporadic.

I was planning to try it out soon, but now the control unit isn't responding at all.

What exactly is connected to the comfort control unit? The power windows and remote control seem to be working normally. However, there's a problem that has existed since the aforementioned error message: the system doesn't recognize when the driver's door is open, so the car automatically relocks itself after 30 seconds.

I don't understand much of it, but it seems that the control unit (although with errors) is still functioning, which suggests there might be a problem with the K-line, right?

However, other control units are being accessed and read correctly.

Can someone help with this?

Thank you in advance.

Best regards,

Okay, please provide the German text you would like me to translate into English. I will only provide the translation.

Disconnect the battery and then test it again.

mullemaus wrote:

Klemme mal die Batterie ab, dann noch einmal testen.

It worked, thank you very much!

Best regards,

Okay, please provide the German text you would like me to translate into English. I will only provide the translation.

A friend of mine is having a problem with his Passat: the interior light keeps turning on and off intermittently. This is related to the comfort control module, but all other functions of the module are working perfectly fine.
Does anyone have any ideas on whether the control unit can be salvaged, or do we need to get a new one?

Jochen912 wrote:

(...) the problem that its interior light keeps turning on and off

Well, that's quite a thin error description .
What has already been checked?
When does the problem occur? With open or closed doors?
At what tempo, approximately?

Have you ever done that?

mullemaus wrote:

Disconnect the battery and then test it again.

Jochen912 wrote:

Hat jemand eine Idee, ob man das Steuergerät noch retten kann, oder muss ein neues her?

Have you checked the measurement data to see if the doors are being recognized as open or closed?

Regards,
Sure.

Here is the translation of the text from German to English:

"Guste" means "gust" in English. It refers to a sudden and strong gust of wind.

The problem occurs when the door is open and the interior lights turn on.
Then it starts turning off and on repeatedly, every second.

He only told me about the problem description once, in the evening, so nothing has been checked or done yet.

I just happened to stumble upon this post, and I thought I'd ask a question and chime in here.

I'll try disconnecting and reconnecting the battery first.

So, a friend of mine came over today and I did a scan.



Thursday, June 10, 2010, 17:17:13:17745
VCDS version: RKS 908.2
Data as of: 20100327.



"Die Sonne scheint hell und warm. Die Vögel zwitschern fröhlich in den Bäumen. Ein leichter Wind weht durch das Gras. Es ist ein perfekter Tag für einen Spaziergang."
"Die Sonne scheint hell und warm. Die Vögel zwitschern fröhlich in den Bäumen. Ein leichter Wind weht durch das Gras. Es ist ein perfekter Tag für einen Spaziergang."


Vehicle type: 3B - VW Passat B5.
Scan: 01 02 03 08 15 16 17 19 35 36 37 46 47 55 56 57 58 75 76 77


Vehicle Identification Number (VIN): WVWZZZ3BZ1E107998. Mileage: 149,620 km.
"Die Sonne scheint hell und warm. Die Vögel zwitschern fröhlich in den Bäumen. Ein leichter Wind weht durch das Feld und lässt das Gras sanft wiegen. Es ist ein wunderschöner Tag."

The sun is shining brightly and warmly. The birds are chirping happily in the trees. A gentle breeze blows through the field, causing the grass to sway softly. It's a beautiful day.
Address 01: Engine Label file: RKS\038-906-019-AVB.lbl
Part number: 038 906 019 EA.
Part number: 1.9L R4 EDC 0000SG 1234.
Encoding: 00002
Operating number: WSC 05311
WVWZZZ3BZ1E107998 VWZ7Z0Y2992899

No errors found.
Readiness: 0 0 X X X

"Die Sonne scheint hell und warm. Die Vögel zwitschern fröhlich in den Bäumen. Ein leichter Wind weht durch das Feld und lässt das Gras sanft wiegen. Es ist ein wunderschöner Tag."

The sun is shining brightly and warmly. The birds are chirping happily in the trees. A gentle breeze blows through the field, causing the grass to sway softly. It's a beautiful day.
Address 03: Brakes
Label file: RKS\8D0-907-389.lbl
Part number: 8D0 907 389 D.
Component: ABS/ESP front D56.
Encoding: 04255
Operating number: WSC 05311

No errors found.

"Die Sonne scheint hell und warm. Die Vögel zwitschern fröhlich in den Bäumen. Ein leichter Wind weht durch das Feld und lässt das Gras sanft wiegen. Es ist ein wunderschöner Tag."

The sun is shining brightly and warmly. The birds are chirping happily in the trees. A gentle breeze blows through the field, causing the grass to sway softly. It's a beautiful day.
Address 08: Climate Control/Heating Label file: RKS\3Bx-907-044.lbl
Part number: 3B1 907 044 J
Part number: CLIMATRONIC B5GP 0006.
Encoding: 17000
Operating number: WSC 47767

"One error found:"
01271 - Temperature flap control motor (V68).
37-00 - defective.

"Die Sonne scheint hell und warm. Die Vögel zwitschern fröhlich in den Bäumen. Ein leichter Wind weht durch das Feld und lässt das Gras sanft wiegen. Es ist ein wunderschöner Tag."

The sun is shining brightly and warmly. The birds are chirping happily in the trees. A gentle breeze blows through the field, causing the grass to sway softly. It's a beautiful day.
Address 15: Airbag
Label file: RKS\6Q0-909-605-VW5.lbl
Part number: 6Q0 909 605 B.
Part number: 0A AIRBAG VW5 04 0004.
Encoding: 12353
Operating number: WSC 05311

No errors found.

"Die Sonne scheint hell und warm. Die Vögel zwitschern fröhlich in den Bäumen. Ein leichter Wind weht durch das Feld und lässt das Gras sanft wiegen. Es ist ein wunderschöner Tag."

The sun is shining brightly and warmly. The birds are chirping happily in the trees. A gentle breeze blows through the field, causing the grass to sway softly. It's a beautiful day.
Address 17: Combination Instrument
Label file: RKS\3B0-920-xx5-17.lbl
Part number: 3B0 920 825 A.
Component: COMBINATION INSTRUMENT + SPEEDOMETER VDO V10
Encoding: 05125
Operating number: WSC 47554
WVWZZZ3BZ1E107998 VWZ7Z0Y2992899

No errors found.

"Die Sonne scheint hell und warm. Die Vögel zwitschern fröhlich in den Bäumen. Ein leichter Wind weht durch das Feld und lässt das Gras sanft wiegen. Es ist ein wunderschöner Tag."

The sun is shining brightly and warmly. The birds are chirping happily in the trees. A gentle breeze blows through the field, causing the grass to sway softly. It's a beautiful day.
Address 19: CAN Gateway
Label file: RKS\6N0-909-901-19.lbl
Part number: 6N0 909 901.
Component: Gateway <-> CAN bus 0001.
Encoding: 00006
Operating number: WSC 35670.

No errors found.

"Die Sonne scheint hell und warm. Die Vögel zwitschern fröhlich in den Bäumen. Ein leichter Wind weht durch das Feld und lässt das Gras sanft wiegen. Es ist ein wunderschöner Tag."

The sun is shining brightly and warmly. The birds are chirping happily in the trees. A gentle breeze blows through the field, causing the grass to sway softly. It's a beautiful day.
Address 46: Comfort System
Label file: RKS\1C0-959-799.lbl
Part number: 1C0 959 799 B.
Component: 0J Comfort Device HLO 0001.
Encoding: 00259
Operating number: WSC 05311

Part number: 1C1959801.
Component: 0J Steering knuckle.FS 0001

Part number: 1C1959802.
Component: 0J Steering knuckle, left. 0001

Part number: 1C0959811.
Component: 0J Steering knuckle, left. 0001

Part number: 1C0959812.
Component: 0J Steering knuckle.HR 0001

"One error found:"
01330 - Comfort System Control Unit (J393)
37-00 - defective.

Sure, here is the translation of the text from German to English:

"End"



Previously, I told him that he should disconnect the battery sometime, which he then did for one night last weekend.

Unfortunately, the problem was still noticeable in the interior light, as it flickers when the door is open.

"What's also strange is that the turn signals don't flash when locking the car, even after all the doors have been closed. Additionally, the LED on the door, which indicates whether a door is open or closed, doesn't always function correctly. Sometimes the car is locked, but the LED doesn't blink as if it were unlocked."

I've cleared the error memory now. He will let me know tomorrow whether the error still occurs.

If so, what other options do I have?

Jochen912 wrote:

1 error found: 01330 - Comfort System Control Unit (J393) 37-00 - defective

It's clearly stated there. If the error can no longer be cleared, even after disconnecting the battery, then that's just how it is.

I was able to delete the error.
After that, I performed another full system scan, which completed without any errors.