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Touran Light Fault (FLA, MDF) (Solution)

 
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matthiasTDI96
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Post10-04-2015, 7:36    Subject: Touran Light Fault (FLA, MDF) Quote

Hello,

A friend recently bought a used Touran (it was just out of warranty and purchased from a private seller).
Problem: The vehicle constantly has its lights on. The installed FLA (Front Light Assistant) and the masked high beam do not function, and neither does the cornering light, turning light, or daytime running light.

The error code 01800, "light switch," is always present. Since the coding assistant in VCDS indicates everything appears to be okay (according to my understanding), it seemed more sensible to first investigate the source of the error rather than trying to correct it through coding.
Okay, so simply swapping it with the Sharan's headlight switch doesn't change anything. The position of the switch makes no difference (except for the parking lights, which it does activate; otherwise, the headlights are always on), and it hasn't made any improvement.
Next, I checked the wiring and connectors. Everything seems to be in order.
Dann im Internet gesucht. Einige berichten von dem Fehler (01800) nach dem Nachrüsten eines Regensensors. Jetzt lässt das den Schluss zu, das da irgendwo etwas falsch codiert ist. Ich habe einen Punkt dann ausprobiert, indem ich in Byte 11 mal eine 00 codiert habe. Resultat Licht aus, Lichtsensor arbeitete wie er sollte, FLA MFD funktionslos, Fehler weiter vorhanden. Nach Fahrzeugneustart aber wieder (trotz der Codierung) Licht ein bei Schalterstellung 0. I then restored the original encoding...

Of course, it can't be ruled out that the previous owner might have tinkered with things. All of the car's features are factory-installed, and he obtained a system report from VW, so it doesn't appear that anything has been added after the fact.

Now, does anyone among you have access to a similarly equipped vehicle and could help with a comparison of the coding?

The owner sent me the attached car scan via email; it wasn't done with my VCDS, as my scan is at home.

Code:

Fahrzeugtyp: 1T (7N0)
Scan: 01 03 08 09 10 15 16 17 18 19 25 37 42 44 46 52 55 56 61 62
          69 72 77 A5
Fahrzeug-Ident.-Nr.: WVGZZZ1TZCW02xxx  Kilometerstand: 115600km
01-Motorelektronik -- Status: i.O. 0000
03-Bremsenelektronik -- Status: i.O. 0000
04-Lenkwinkelsensor -- Status: i.O. 0000
08-Klima-/Heizungsel. -- Status: i.O. 0000
09-Zentralelektrik -- Status: Fehler 0010
10-Einparkhilfe 2 -- Status: i.O. 0000
15-Airbag -- Status: i.O. 0000
16-Lenkradelektronik -- Status: i.O. 0000
17-Schalttafeleinsatz -- Status: i.O. 0000
18-Standheizung -- Status: i.O. 0000
19-Diagnoseinterface -- Status: i.O. 0000
25-Wegfahrsperre -- Status: i.O. 0000
37-Navigation -- Status: i.O. 0000
42-Türelektr. Fahrer -- Status: i.O. 0000
44-Lenkhilfe -- Status: i.O. 0000
46-Komfortsystem -- Status: i.O. 0000
52-Türelektr. Beifahr. -- Status: i.O. 0000
55-Leuchtweitenreg. -- Status: i.O. 0000
56-Radio -- Status: i.O. 0000
61-Batterieregelung -- Status: i.O. 0000
62-Türelektr. hi. li. -- Status: i.O. 0000
69-Anhänger -- Status: i.O. 0000
72-Türelektr. hi. re. -- Status: i.O. 0000
77-Telefon -- Status: i.O. 0000
A5-Front-/Vorfeldkamera -- Status: i.O. 0000

-------------------------------------------------------------------------------
Adresse 01: Motorelektronik (J623-CFHC)       Labeldatei: DRV\03L-906-018-CFF.clb
   Teilenummer SW: 03L 906 018 NQ    HW: 03L 907 309 N
   Bauteil: R4 2,0L EDC   H25 0670 
   Revision: 41H25---    Seriennummer: 00000000000000
   Codierung: 0019003A042401080000
   Betriebsnr.: WSC 01324 020 00200
   ASAM Datensatz: EV_ECM20TDI01103L906018NQ 003001
   ROD: EV_ECM20TDI01103L906018GA.rod
   VCID: 0607F1E3B98A9E1154B-8053
Kein(e) Fehlercode(s) gefunden.
Readiness: 0 0 0 0 0
-------------------------------------------------------------------------------
Adresse 03: Bremsenelektronik (J104)       Labeldatei: DRV\1K0-907-379-60EC1F.clb
   Teilenummer SW: 1K0 907 379 BJ    HW: 1K0 907 379 BJ
   Bauteil: ESP MK60EC1   H31 0121 
   Revision: 00H31001   
   Codierung: 323B601609240EFE4C1006E9901F7052350150
   Betriebsnr.: WSC 01324 020 00200
   VCID: 7BF19017FA48D3F93B5-802E
Kein(e) Fehlercode(s) gefunden.
-------------------------------------------------------------------------------
Adresse 08: Klima-/Heizungsel. (J255)       Labeldatei: DRV\5K0-907-044.clb
   Teilenummer SW: 5K0 907 044 FA    HW: 5K0 907 044 FA
   Bauteil: Climatronic   H18 1112 
   Revision: 00001003   
   Codierung: 0000004003
   Betriebsnr.: WSC 01324 020 00200
   ASAM Datensatz: EV_Climatronic A01010
   ROD: EV_ClimaAutoBasis_VW36.rod
   VCID: 6FE9B447B630BF5987D-803A
Kein(e) Fehlercode(s) gefunden.
-------------------------------------------------------------------------------
Adresse 09: Zentralelektrik (J519)       Labeldatei: DRV\1K0-937-08x-09.clb
   Teilenummer SW: 5K0 937 087 M    HW: 5K0 937 087 M
   Bauteil: BCM PQ35 H    011 0048 
   Revision: BE011001   
   Codierung: 40180A3888251AE0400800C8510011E44F759008626DA520E480CF000049
   Betriebsnr.: WSC 28226 123 104857
   VCID: 3F892407AED00FD957D-806A
   Subsystem 1 - Teilenummer: 1T1 955 119 A  Labeldatei: DRV\1KX-955-119.CLB
   Bauteil: Wischer 27071  26  0512
   Codierung: 009795
   Subsystem 2 - Teilenummer: 1K0 955 559 AH  Labeldatei: DRV\1K0-955-559-AG.CLB
   Bauteil: RLS 020811 05  54  0403
   Codierung: 0730ED
1 Fehler gefunden:
01800 - Lichtschalter (E1)
            008 - unplausibles Signal - Sporadisch
             Umgebungsbedingungen:
                    Fehlerstatus: 00101000
                    Fehlerpriorität: 3
                    Fehlerhäufigkeit: 2
                    Verlernzähler: 21
                    Kilometerstand: 115606 km
                    Zeitangabe: 0
                    Datum: 2015.04.01
                    Zeit: 00:32:53
             Umgebungsbedingungen:
                        Kl.15 EIN
                    Spannung: 14.55 V
                        ein
                        ein
                        ein
                        aus
                        aus
-------------------------------------------------------------------------------
Adresse 10: Einparkhilfe 2 (J791)       Labeldatei: DRV\3AA-919-475.clb
   Teilenummer SW: 3AA 919 475 L    HW: 4H0 919 475 E
   Bauteil: PARKHILFE PLA H06 0025 
   Revision: --------    Seriennummer: 56261119403136
   Codierung: 358201
   Betriebsnr.: WSC 01324 020 00200
   ASAM Datensatz: EV_EPHVA2C000000000 002008
   ROD: EV_EPHVA2C000000000_SE36.rod
   VCID: 44832BEBCF366C010AF-8011
Kein(e) Fehlercode(s) gefunden.
-------------------------------------------------------------------------------
Adresse 15: Airbag        Labeldatei: DRV\1T0-909-605.lbl
   Teilenummer SW: 1T0 909 605 E    HW: 1T0 909 605 E
   Bauteil: 02 AIRBAG VW8   022 0100 
   Revision: 02022000    Seriennummer: 003K4D03URJX 
   Codierung: 0012338
   Betriebsnr.: WSC 01324 020 00200
   VCID: 37794C2746E037999FD-8062
   Subsystem 1 - Seriennummer: 6332QSME305B356EM
   Subsystem 2 - Seriennummer: 6342QSME4C4F265C-
   Subsystem 3 - Seriennummer: 6352QSME015D26408
   Subsystem 4 - Seriennummer: 6362QSME325A2C5AR
Kein(e) Fehlercode(s) gefunden.
-------------------------------------------------------------------------------
Adresse 16: Lenkradelektronik (J527)       Labeldatei: DRV\5K0-953-569.clb
   Teilenummer SW: 5K0 953 501 CF    HW: 5K0 953 569 H
   Bauteil: LENKS.MODUL   014 0140 
   Revision: FF010040    Seriennummer: 20110618101192
   Codierung: 318A240000
   Betriebsnr.: WSC 01324 020 00200
   ASAM Datensatz: EV_VW360SteerWheelUDS A03004
   ROD: EV_VW360SteerWheelUDS.rod
   VCID: 70EBB73BAB0EA0A19E7-8025
   Steuergerät für Multifunktionslenkrad:
   Subsystem 1 - Teilenummer SW: 5K0 959 542 A    HW: 5K0 959 542 A  Labeldatei: DRV\3C8-959-537.CLB
   Bauteil: E221__MFL-TAS  H09 0013
   Codierung: 820000
Kein(e) Fehlercode(s) gefunden.
-------------------------------------------------------------------------------
Adresse 17: Schalttafeleinsatz (J285)       Labeldatei: DRV\5K0-920-xxx-17.clb
   Teilenummer SW: 1T0 920 885 A    HW: 1T0 920 885 A
   Bauteil: KOMBI         H04 0407 
   Seriennummer: 00000000000000
   Codierung: 181F01
   Betriebsnr.: WSC 01324 020 00200
   ASAM Datensatz: EV_Kombi_UDS_VDD_RM09 A04114
   ROD: EV_Kombi_UDS_VDD_RM09_SK35.rod
   VCID: 3667412389EACE9184B-8063
Kein(e) Fehlercode(s) gefunden.
-------------------------------------------------------------------------------
Adresse 18: Standheizung        Labeldatei: DRV\1K0-815-007.clb
   Teilenummer: 7N0 963 272 A
   Bauteil: Standheizer     043 4730 
   Revision: 00043000    Seriennummer: 09022127000000
   Codierung: 0031032
   Betriebsnr.: WSC 01324 020 00200
   VCID: 336178375298DBB9A35-8066
Kein(e) Fehlercode(s) gefunden.
-------------------------------------------------------------------------------
Adresse 19: Diagnoseinterface (J533)       Labeldatei: DRV\7N0-907-530-V2.clb
   Teilenummer SW: 7N0 907 530 L    HW: 1K0 907 951
   Bauteil: J533  Gateway H41 1620 
   Revision:   H41       Seriennummer: 140711F1000818
   Codierung: 358002
   Betriebsnr.: WSC 01324 020 00200
   VCID: 397D4A1FB0F421E9699-806C
Kein(e) Fehlercode(s) gefunden.
-------------------------------------------------------------------------------
Adresse 25: Wegfahrsperre (J334)       Labeldatei: DRV\5K0-920-xxx-25.clb
   Teilenummer SW: 5K0 953 234     HW: 5K0 953 234
   Bauteil: IMMO          H04 0407 
   Seriennummer: 00000000000000
   Codierung: 000000
   Betriebsnr.: WSC 00000 000 00000
   ASAM Datensatz: EV_Immo_UDS_VDD_RM09 A03009
   ROD: EV_Immo_UDS_VDD_RM09_SE25.rod
   VCID: 6ADFA5538DD25A71D03-803F
Kein(e) Fehlercode(s) gefunden.
-------------------------------------------------------------------------------
Adresse 37: Navigation (J0506)       Labeldatei: DRV\1T0-035-680.clb
   Teilenummer SW: 1T0 035 680 P    HW: 1T0 035 680 F
   Bauteil: RNS-MID       H55 5238 
   Revision: AB001001    Seriennummer: VWZ6Z7L2204046
   Codierung: 04000442040000802009
   Betriebsnr.: WSC 01324 020 00200
   VCID: 3B715017BAC813F97B5-806E
   Subsystem 1 - Teilenummer: 1T0 919 859 B
   Bauteil: EU West V12  8195
Kein(e) Fehlercode(s) gefunden.
-------------------------------------------------------------------------------
Adresse 42: Türelektr. Fahrer        Labeldatei: DRV\1K0-959-701-MAX3.lbl
   Teilenummer SW: 1T0 959 701 AA    HW: 1T0 959 701 AA
   Bauteil: Tuer-SG         009 2121 
   Codierung: 0135351
   Betriebsnr.: WSC 01324 020 00200
   VCID: 76E78123016A8E9144B-8023
Kein(e) Fehlercode(s) gefunden.
-------------------------------------------------------------------------------
Adresse 44: Lenkhilfe        Labeldatei: DRV\5N1-909-144.clb
   Teilenummer SW: 5N1 909 144 M    HW: 5N1 909 148 G
   Bauteil: J500__APA-BS KL.293 1002 
   Revision: 1AH03733    Seriennummer: 00112160260401
   Codierung: 0000258
   Betriebsnr.: WSC 01324 020 00200
   VCID: 3C73530B7FC614C172F-8069
Kein(e) Fehlercode(s) gefunden.
-------------------------------------------------------------------------------
Adresse 52: Türelektr. Beifahr.        Labeldatei: DRV\1K0-959-702-MAX3.lbl
   Teilenummer SW: 1T0 959 702 S    HW: 1T0 959 702 S
   Bauteil: Tuer-SG         009 2121 
   Codierung: 0135607
   Betriebsnr.: WSC 01324 020 00200
   VCID: 489B3FDB3B1E4861E67-801D
Kein(e) Fehlercode(s) gefunden.
-------------------------------------------------------------------------------
Adresse 55: Leuchtweitenreg. (J745)       Labeldatei: DRV\5M0-907-357-V3.clb
   Teilenummer SW: 5M0 907 357 E    HW: 7L6 907 357 C
   Bauteil: AFS-ECU       H04 0100 
   Revision: --------    Seriennummer: --------------
   Codierung: 038200104F000200
   Betriebsnr.: WSC 01324 020 00200
   ASAM Datensatz: EV_HeadlRegulVWAFSPt 002014
   ROD: EV_HeadlRegulVWAFSPt_SE36.rod
   VCID: 3667412389EACE9184B-8063
   Left_headlamp_power_output_stage:
   Subsystem 1 - Teilenummer SW: 1T0 941 329 A    HW: 1T0 941 329 A
   Bauteil: LeiMo links  H06 0007
   Codierung: 3D0000
   Right_headlamp_power_output_stage:
   Subsystem 2 - Teilenummer SW: 1T0 941 329 A    HW: 1T0 941 329 A
   Bauteil: LeiMo rechts  H06 0007
   Codierung: 3D0000
Kein(e) Fehlercode(s) gefunden.
-------------------------------------------------------------------------------
Adresse 56: Radio (J0506)       Labeldatei: DRV\1T0-035-680.clb
   Teilenummer SW: 1T0 035 680 P    HW: 1T0 035 680 F
   Bauteil: RNS-MID       H55 5238 
   Revision: AB001001    Seriennummer: VWZ6Z7L2204046
   Codierung: 04000442040000802009
   Betriebsnr.: WSC 01324 020 00200
   VCID: 3B715017BAC813F97B5-806E
   Subsystem 1 - Teilenummer: 1T0 919 859 B
   Bauteil: EU West V12  8195
Kein(e) Fehlercode(s) gefunden.
-------------------------------------------------------------------------------
Adresse 61: Batterieregelung (J840)       Labeldatei: DRV\1K0-907-534.clb
   Teilenummer SW: 7N0 907 534     HW: 1K0 907 951
   Bauteil: Batt.regelung H41 1620 
   Seriennummer: 140711F1000818
   Codierung: 030B185A
   Betriebsnr.: WSC 01324 020 00200
   VCID: 71EDB23FA804A9A9919-8024
   Subsystem 1 - Teilenummer SW: 1K0 915 181 H    HW: 1K0 915 181 A
   Bauteil: J367-BDM  H07 0180
Kein(e) Fehlercode(s) gefunden.
-------------------------------------------------------------------------------
Adresse 62: Türelektr. hi. li.        Labeldatei: DRV\1K0-959-703-GEN3.lbl
   Teilenummer SW: 5K0 959 703 A    HW: 5K0 959 703 A
   Bauteil: Tuer-SG         007 2104 
   Codierung: 0131216
   Betriebsnr.: WSC 01324 020 1012552
   VCID: 326F7D33AD82D2B1A83-8067
Kein(e) Fehlercode(s) gefunden.
-------------------------------------------------------------------------------
Adresse 69: Anhänger (J345)       Labeldatei: DRV\1K0-907-383-MY8.lbl
   Teilenummer SW: 1K0 907 383 F    HW: 1K0 907 383 F
   Bauteil: Anhaenger     H09 0100 
   Revision: 3A001001    Seriennummer: 00000151102719
   Codierung: 410D000100000000
   Betriebsnr.: WSC 01324 020 00200
   VCID: 306B773B638EE0A1DE7-8065
Kein(e) Fehlercode(s) gefunden.
-------------------------------------------------------------------------------
Adresse 72: Türelektr. hi. re.        Labeldatei: DRV\1K0-959-704-GEN3.lbl
   Teilenummer SW: 5K0 959 704 A    HW: 5K0 959 704 A
   Bauteil: Tuer-SG         007 2104 
   Codierung: 0131216
   Betriebsnr.: WSC 01324 020 1012552
   VCID: 336178375298DBB9A35-8066
Kein(e) Fehlercode(s) gefunden.
-------------------------------------------------------------------------------
Adresse 77: Telefon (J412)       Labeldatei: DRV\3C8-035-730-A.clb
   Teilenummer SW: 3C8 035 730 D    HW: 3C8 035 730 D
   Bauteil: Telefon       022 0982 
   Revision: --------    Seriennummer: 35502105190059
   Codierung: 010100010100010000000101
   Betriebsnr.: WSC 12345 123 12345
   ASAM Datensatz: EV_UHVPremi 002709
   ROD: EV_UHVPremi_SE36.rod
   VCID: 24438B6B2F764C012AF-8071
Kein(e) Fehlercode(s) gefunden.
-------------------------------------------------------------------------------
Adresse A5: Front-/Vorfeldkamera (R242)       Labeldatei: DRV\3AA-980-654.clb
   Teilenummer SW: 3AA 980 654 C    HW: 3AA 980 654 A
   Bauteil: MFK_Gen1      H08 0203 
   Seriennummer: 0152402228
   Codierung: 010102000102020E0200040001000000
   Betriebsnr.: WSC 01324 020 00200
   ASAM Datensatz: EV_47X 001639
   ROD: EV_47X.rod
   VCID: 387B4F1B83FE38E1967-806D
Kein(e) Fehlercode(s) gefunden.
Ende----------------------------(Dauer: 03:46)-----------------------------



Translated on 17-07-2026, 15:13.
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dieselmartin
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Post10-04-2015, 9:42    Subject: Touran Light Fault (FLA, MDF) Quote

Hi.

I once removed the white lines from the scan icon_smile.gif.

Wow... a 3C8..D FSE, jealousy!


Okay, back to the topic:

My knowledge doesn't recognize byte 18 of the BCM in that way.

40180A3888251AE0400800C8510011E44F759008626DA520E480CF000049

However, I did it with a...
Code:

Adresse 09: Zentralelektrik (J519)       Labeldatei: RKS\1K0-937-08x-09.clb
   Teilenummer SW: 1K0 937 087 J    HW: 1K0 937 087 J
   Bauteil: BCM PQ35  H   103 0615 
   Revision: 00103 AD   
   Codierung: 40180A3AE8251AE040080080710089EC437D0E88737D8D60648000000040

compared.
Okay, he doesn't recognize "0E" here either...

Nevertheless:
Are you sure that byte is correct?
It's just a very rough guess icon_wink.gif.

Okay, please provide the German text you would like me to translate into English. I will only provide the translation.
Transparency, Teamwork
... there was another T.

I don't know what the f*ck it was.


Translated on 17-07-2026, 15:17.
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matthiasTDI96
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Post10-04-2015, 10:04    Subject: Touran Light Fault (FLA, MDF) Quote

Thank you for editing; I'm not very good at it myself.
As I mentioned, I don't know the original state, so unfortunately, many things are possible. I'm happy to consider any suggestions.


Translated on 17-07-2026, 15:18.
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Roger
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Post10-04-2015, 10:19    Subject: Touran Light Fault (FLA, MDF) Quote

Hi,

Was the windshield replaced?
There might be something wrong with the rain sensor.
Gruß
Roger

MJ 2018 GTI Performance DLBA

//images.spritmonitor.de/880099.png


Translated on 17-07-2026, 15:19.
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matthiasTDI96
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Post10-04-2015, 10:27    Subject: Touran Light Fault (FLA, MDF) Quote

I had already suspected that the windshield has only a few minor chips, given its mileage of 115,000 km, but the car itself also shows signs of wear. According to Volkswagen's records, service intervals were performed at approximately 30,000, 60,000, 90,000, and 112,000 km, with the last one only being an oil change, for some reason. A new radiator was installed, but otherwise there's nothing else listed, which of course doesn't mean that other work wasn't done elsewhere.

Everything I see in the measurement blocks for the RLS (Radar Localizer System) and the camera makes sense, and there's also a distinction made between light being on and off.

I can only imagine that someone might have tampered with the code.

The acquaintance readily received a lot of information about the car from VW, but the local dealer couldn't fix the problem. He wants to replace the control unit (module) 09 and the light switch, then the A5 (camera), in order to solve the issue. This doesn't sound convincing to me, and it seems quite expensive.


Translated on 17-07-2026, 15:20.
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dieselmartin
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Post10-04-2015, 11:23    Subject: Touran Light Fault (FLA, MDF) Quote

Okay, so errors in the LDS (likely referring to a specific system or device) and "lights always on" definitely go hand in hand.

When operating an AUTO-LDS without RLS (Remote Lighting System), the light on the AUTO setting will always be illuminated.
If the vehicle is operated without the Lane Departure System (LDS), the headlights are always on.

As it stands, the error message and the phrase "short circuit after positive voltage" seem quite reasonable and point to a problem with the cables.

What do the MWB (Main Water Block) say when switching between different LDS (Liquid Distribution System) configurations?
Is everything making sense? / Does everything seem reasonable?

Is it the 3C8...A LDS?

Okay, please provide the German text you would like me to translate into English. I will only provide the translation.
Transparency, Teamwork
... there was another T.

I don't know what the f*ck it was.


Translated on 17-07-2026, 15:23.
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Post10-04-2015, 11:29    Subject: Touran Light Fault (FLA, MDF) Quote

Ich hab in den MJ11er Golf+ mit o.g. BCM, regarding this RLS:

(0)

Code:

   Subsystem 2 - Teilenummer: 1K0 955 559 AG  Labeldatei: RKS\1K0-955-559-AG.CLB
   Bauteil: RLS 151210 05  55  0403
   Codierung: 4730BB


You have.

0730ED ... the bit (4 instead of 0) at the beginning is not documented?!?!


(1) In my MJ07 RLS, the value is 0.
(2) Even the older coding tools (RLS.exe) do not take this into account.
(3) The Touran has activated the rain sensor wipers.
(4) Das hatte m.W. NONE from the factory.

From points 3 and 4, it follows that someone encoded it.
From 1 and 2, he may have deleted the bit that was presumably necessary from 0.

(5) If there's a problem with the LDS (Light Dependent Sensor) or RLS (Remote Light Switch), the light will always be on!

You can see the result.

Set bit 6 in byte 0 of the RLS.


I miss the LCode version that showed the set but undocumented bits icon_sad.gif
Transparency, Teamwork
... there was another T.

I don't know what the f*ck it was.


Translated on 17-07-2026, 15:25.
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Post10-04-2015, 12:02    Subject: Touran Light Fault (FLA, MDF) Quote

Okay, so far I also see that as logical; if there's any kind of error, the failsafe light should always be on. It works correctly without the light switch, with its own light switch, and even with my light switch. Therefore, I don't suspect the switch itself. That's why the suspicion fell on a wiring problem. We checked the wiring as much as we could, but it wasn't 100% certain.

However, I'm going to investigate that "umbrella closure" issue; it's a good clue and reinforces the suspicion of some kind of obfuscation or manipulation.


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Post11-04-2015, 10:02    Subject: Touran Light Fault (FLA, MDF) Quote

Quote:
Therefore, the error message and the phrase "short circuit after positive voltage" sound quite okay and suggest a problem with the cables.

icon_smile_thumb_up.gif


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Post11-04-2015, 11:56    Subject: Touran Light Fault (FLA, MDF) Quote

"Hmm, did I misunderstand something? Is an 'implausible signal' the same thing as a short circuit to the positive terminal? The cables are all fine; that's been checked again..."


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Post11-04-2015, 12:12    Subject: Touran Light Fault (FLA, MDF) Quote

Quote:
Is an implausible signal the same as a short circuit to positive

No, but in both cases, I wouldn't rule out wiring harness problems - especially if replacing the switch with a different one didn't work. icon_wink.gif

Can you check the different positions of the light switch within the measurement data blocks from the vehicle's body control module?

Best regards, Rainer.


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Post11-04-2015, 15:23    Subject: Touran Light Fault (FLA, MDF) Quote

Yes, that's possible and it works perfectly. It's completely inconspicuous... I need to check again on Sunday evening. Let's see what happens.


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Post30-05-2015, 18:27    Subject: Touran Light Fault (FLA, MDF) Quote

The errors caused by the component replacement have finally been fixed. Everything is now working perfectly again with the original code.


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Post30-05-2015, 18:58    Subject: Touran Light Fault (FLA, MDF) Quote

Thank you for your feedback!


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