MK7 Foglight Check Bulb

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Chimuel

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Hi all,

A little background on the car --it's a 2015 US Spec Sportwagen S. I had the CECM replaced to include the pinouts for the foglights and have fitted the following:

CECM part 5Q0-937-087-S
Front fog lights to pins B5 and B45
Rear fog light to pin A72
Euro switch 5GG-941-431-D WZU (with Auto setting and a piggyback light sensor) pin 5 to A29
Enhanced Auto Dim/Homelink Mirror part 000-072-548-E (this connects to the headlight switch, more below)

So I have the light switch wiring as follows:
Euro switch then the piggyback light sensor plugged into it, then the homelink sensor piggyback, then the original plug that goes to the CECM.

I've got everything adaptation coded and double checked with a bunch of my notes and posts online and DV52's lighting guide and I still get the "Check Fog Light Right/Left" when I am in the Auto setting of the switch and the ambient (sun/shade) lighting changes --typically will see the error pop up when the headlights are triggered on by the sensor.

The behavior I would see with my first set of bulbs (Nokia H11 2500k) was the fog lights would come on but then flash a few times, stay on, then cut off. I can turn the front fogs on forcibly by having the switch pulled all the way out to turn on the rear fog lights. I then switched bulbs for PIAA H11 2500k ones and the flickering went away and the fog lights will stay on but I still get the Check Bulb warning.

I've attached the faults here:
Code:
Monday,29,April,2019,21:11:59:56357
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 18.9.1.0 (x64)
Data version: 20190114 DS296.0
www.Ross-Tech.com

Dealer/Shop Name: 

VIN: 3VWC17AU3FM516313   License Plate: 
Mileage: 77056km-47880mi   Repair Order: lighting



--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Chassis Type: AU-VW37 (5Q0)
Scan: 01 02 03 08 09 15 16 17 19 42 44 52 5F 75

VIN: 3VWC17AU3FM516313   Mileage: 77056km-47880miles

01-Engine -- Status: OK 0000
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: Malfunction 0010
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
5F-Information Electr. -- Status: OK 0000
75-Telematics -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine (J623-CXBB)       Labels:. 06K-907-425-V1.clb
   Part No SW: 5GM 906 264     HW: 06K 907 425 B
   Component: 1.8l R4 TFSI  H13 0001  
   Revision: --H13---    
   Coding: 091A00122424002F0000
   Shop #: WSC 00066 790 00218
   ASAM Dataset: EV_ECM18TFS0205GM906264 001001
   ROD: EV_ECM18TFS_VW37.rod
   VCID: 844409AC0FC7BA6A79-80D0

No fault code found.
Readiness: 1010 1101

-------------------------------------------------------------------------------
Address 02: Auto Trans (J217)       Labels: 09G-927-749-V2.clb
   Part No SW: 09G 927 749 D    HW: 09G 927 749 D
   Component: AISIN AG6 G3  129 2866  
   Coding: 010100000C000000000000000000000000000000
   Shop #: WSC 00066 790 00218
   ASAM Dataset: EV_TCMAQ250031 002009
   ROD: EV_TCMAQ250031_002_VW25.rod
   VCID: BA38B7543D833C9A53-80EE

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels: 5Q0-907-379-ESP-V1.clb
   Part No SW: 3Q0 907 379 P    HW: 3Q0 907 379 C
   Component: ESC           H32 0385  
   Revision: 00000000    Serial number: 50875000000483
   Coding: 04FA6AA124210972007A020181C6292056249000408194B400430050C002
   Shop #: WSC 01383 790 50316
   ASAM Dataset: EV_Brake1UDSContiMK100ESP 034033
   ROD: EV_Brake1UDSContiMK100ESP_034_VW37.rod
   VCID: C7DEDEA07E715172DC-8092

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J301)       Labels:| 5G0-907-426.clb
   Part No SW: 5GM 907 426     HW: 5GM 907 426 
   Component: AC Manuell    H02 1001  
   Revision: 00001K01    
   Coding: 02020004100100000000000012000000
   Shop #: WSC 01383 790 50316
   ASAM Dataset: EV_ACManueBHBVW37X 003019
   ROD: EV_ACManueBHBVW37X_003_VW37.rod
   VCID: 854214A804FD83626E-80D0

   Fresh Air Blower Front: 

   Refrigerant Pressure And Temperature Sender: 

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:| 5Q0-937-08X-HV1.clb
   Part No SW: 5Q0 937 087 S    HW: 5Q0 937 087 S
   Component: BCM PQ37BOSCH 028 0145  
   Revision: --------    Serial number: 865805111602BP
   Coding: 000018424041805969E44000000403001000000000000000000000000000
   Shop #: WSC 12345 123 12345
   ASAM Dataset: EV_BodyContrModul1UDSBosc 014004
   ROD: EV_BCMBOSCH_014.rod
   VCID: CBD6E2906219B512F8-809E

   Control Unit For Wiper Motor: 
   Subsystem 1 - Part No SW: 5GM 955 119     HW: 5GM 955 119   Labels: 5QX-955-119-V1.CLB
   Component: WWS    150403  043 0581 
   Serial number:         150521102520
   Coding: 0E4DDD

2 Faults Found:

8714 - Bulb for Left Fog Lamp 
          B121F 15 [009] - Open or Short to Plus
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 4
                    Fault Frequency: 3
                    Reset counter: 78
                    Mileage: 77056 km
                    Date: 2019.04.29
                    Time: 20:23:41

8970 - Bulb for Right Fog Lamp 
          B1220 15 [009] - Open or Short to Plus
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 4
                    Fault Frequency: 4
                    Reset counter: 78
                    Mileage: 77056 km
                    Date: 2019.04.29
                    Time: 20:23:47


-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:| 5Q0-959-655.clb
   Part No SW: 5Q0 959 655 J    HW: 5Q0 959 655 J
   Component: AirbagVW20    009 0825  
   Serial number: 003GCR01LNV5
   Coding: 8CCCFC00000000005000001AC24800000065
   Shop #: WSC 01383 790 50316
   ASAM Dataset: EV_AirbaVW20SMEVW37X 002138
   ROD: EV_AirbaVW20SMEVW37X.rod
   VCID: C7DEDEA07E715172DC-8092

   Occupant Detection: 
   Subsystem 1 - Part No SW: 4M0 959 339 B    HW: 4M0 959 339 B
   Component: BF-Gewichtss.  H11 0021 
   Serial number: IBH0000J150002PRED0N
   Coding: 303138

   Side Sensor Driver Front: 
   Subsystem 2 - Part No SW: -----------    HW: 480 003 003 15
   Component: SideSensor_Df  001 0887 
   Serial number: 35700000000DCCFCE31B
   Coding: 2D2D2D

   Side Sensor Passenger Front: 
   Subsystem 3 - Part No SW: -----------    HW: 480 002 603 15
   Component: SideSensor_Pf  001 0887 
   Serial number: 35800000000C2951931F
   Coding: 2D2D2D

   Side Sensor Driver Rear: 
   Subsystem 4 - Part No SW: -----------    HW: 480 403 103 15
   Component: SideSensor_Dr  001 6149 
   Serial number: 3510002C51941315D11O
   Coding: 2D2D2D

   Side Sensor Passenger Rear: 
   Subsystem 5 - Part No SW: -----------    HW: 480 403 103 15
   Component: SideSensor_Pr  001 6149 
   Serial number: 3520002A31A878548381
   Coding: 2D2D2D

   Front Sensor Driver: 
   Subsystem 6 - Part No SW: -----------    HW: 480 400 104 15
   Component: FrontSensor_D  001 6149 
   Serial number: 3550002AB1A14CA2035+
   Coding: 2D2D2D

   Front Sensor Passenger: 
   Subsystem 7 - Part No SW: -----------    HW: 480 400 104 15
   Component: FrontSensor_P  001 6149 
   Serial number: 3560002AB1A14CA5F2CN
   Coding: 2D2D2D

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel (J524)       Labels:| 5Q0-953-549.clb
   Part No SW: 5Q0 953 521 P    HW: 5Q0 953 569 A
   Component: Lenks.Modul   075 0175  
   Revision: FF032032    Serial number: 20150327500211
   Coding: 0410
   Shop #: WSC 66564 385 16448
   ASAM Dataset: EV_SMLSVALEOMQB 001015
   ROD: EV_SMLSVALEOMQB.rod
   VCID: BFCEC64026A119B264-80EA

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:| 5G0-920-XXX-17.clb-SRI3
   Part No SW: 5G1 920 840     HW: 5G1 920 840 
   Component: KOMBI         243 4270  
   Coding: 0BB5110A2180CF0502087E001000000000000000
   Shop #: WSC 00066 790 00218
   ASAM Dataset: EV_DashBoardVDDMQBAB 009037
   ROD: EV_DashBoardVDDMQBAB_009_VW37.rod
   VCID: E484292CEF871A6AD9-80B0

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533)       Labels:| 5Q0-907-530-V1.clb
   Part No SW: 5Q0 907 530 AB    HW: 5Q0 907 530 L
   Component: GW MQB Mid    211 2203  
   Revision: --------    Serial number: 30041510000556
   Coding: 0101000820085900FF0000081C0F00000001050000000000000000000000
   Shop #: WSC 00066 790 07027
   ASAM Dataset: EV_GatewConti 011020
   ROD: EV_GatewConti_011_VW37.rod
   VCID: F1AA50782075BFC2A2-80A4

   Alternator: 

   Multi Function Steering Wheel Control Module: 
   Subsystem 2 - Part No SW: 5G0 959 442 P    HW: 5G0 959 442 P  Labels: 3C8-959-537.CLB
   Component: E221__MFL-DC1  H16 0101 
   Serial number: 27140002727850095154
   Coding: 31FFFF

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386)       Labels:| 5QX-959-X93-42.clb
   Part No SW: 5Q0 959 393 B    HW: 5Q0 959 393 B
   Component: TSG FS        020 0025  
   Serial number: 18051506050GBN
   Coding: 003003208C00040000000000
   Shop #: WSC 01383 790 50316
   ASAM Dataset: EV_DCUDriveSideEWMINKLO 006003
   ROD: EV_DCUDriveSideEWMAXCONT.rod
   VCID: BE30BB4421AB10BA6F-80EA

   Drivers Door Rear Control Module: 
   Subsystem 1 - Part No SW: 5Q4 959 811 D    HW: 5Q4 959 811 D  Labels: 5QX-959-81X-V1.CLB
   Component: Fond FHSG DRV  007 0002 
   Serial number: 00000000000001182805
   Coding: 011000

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist (J500)       Labels:| 5Q0-909-144.clb
   Part No SW: 5Q0 909 144 R    HW: 5Q0 909 144 R
   Component: EPS_MQB_ZFLS  126 1061  
   Coding: 0102
   Shop #: WSC 00066 790 00218
   ASAM Dataset: EV_SteerAssisMQB 012140
   ROD: EV_SteerAssisMQB_012_VW37.rod
   VCID: C3C6CAB04A497D5200-8096

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387)       Labels:| 5QX-959-X92-52.clb
   Part No SW: 5Q0 959 392 B    HW: 5Q0 959 392 B
   Component: TSG BFS       020 0025  
   Serial number: 1505150605098O
   Coding: 003003208C00040000000000
   Shop #: WSC 01383 790 50316
   ASAM Dataset: EV_DCUPasseSideEWMINKLO 006003
   ROD: EV_DCUPasseSideEWMAXCONT.rod
   VCID: BD32BC482CAD0BA276-80E8

   Passengers Rear Door Control Module: 
   Subsystem 1 - Part No SW: 5Q4 959 812 D    HW: 5Q4 959 812 D  Labels: 5QX-959-81X-V1.CLB
   Component: Fond FHSG PSG  007 0002 
   Serial number: 00000000000001160412
   Coding: 091000

No fault code found.

-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794)       Labels:| 5G0-035-MIB-STD1.clb
   Part No SW: 5G0 035 844     HW: 5G0 035 844 
   Component: MU-S-S-US     014 0655  
   Serial number: V7B01504153511
   Coding: 02730200FF00000021220001001800001F0206040100010002
   Shop #: WSC 47844 001 104857
   ASAM Dataset: EV_MUStd4CPASE 002040
   ROD: EV_MUStd4CPASE_VW37.rod
   VCID: E484292CEF871A6AD9-80B0

   Operating And Display Unit 1: 
   Subsystem 1 - Part No SW: 5G0 919 605 H    HW: 5G0 919 605 H
   Component: ABT_Std_Plus  H60 0030 
   Serial number: VWZ8Z9RS501QCL      

No fault code found.

-------------------------------------------------------------------------------
Address 75: Telematics (J949)       Labels:| 5QE-035-285.clb
   Part No SW: 5QE 035 285 A    HW: 5QE 035 285 A
   Component: OCULowMQBUS   007 0564  
   Coding: 02730202C2821A017F1E06000000
   Shop #: WSC 00066 790 00323
   ASAM Dataset: EV_OCULowMQB 001003
   ROD: EV_OCULowMQB.rod
   VCID: C3C6CAB04A497D5200-8096

No fault code found.

End----------(Elapsed Time: 01:15, VBatt start/end: 12.1V/12.0V)-----------
I've uploaded my Channel 09 Adaptations here: https://www.dropbox.com/s/2muojbnejni1vqp/adpmap-09-5Q0-937-087-S_3VWC17AU3FM516313-20190501-0051.CSV?dl=0

Anyone have insight? I am starting to think it's an issue with the Euro AUTO switch setting and light sensor (I've been troubleshooting this problem for a month now).

Thanks!
 
   #2  

DV52

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^^^Hi and thanks for posting your BCM admap.

Your leuchte-programming changes look OK (to me, at least) - assuming that the retrofitted front fogs are not LED (Nokia H11 2500k??). I wonder whether the problem is caused by your curious DoT rule that enforces a maximum of 4 x lights (I have never understood the road lighting rules in your country)

Anyhow, I notice from the code-string on your BCM admap that the car has incandescent headlights - so, try changing IDE04924-ENG115860-Driving light and parking light-Zahl der aktiven Scheinwerfer auf 2 limitieren (my bad translation "Driving Light and parking Light -number of active head Lights ON limit 2") from limitieren (current) to not active.

Don
 
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Chimuel

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Hi DV52!

That is correct, I am not using any LEDs for the fog lights, Nokya and the PIAA are halogen.

I don't have a "not active" setting but here are my two options for that channel:



EDIT: I tried this setting and I still get the warning indicators.
 
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DV52

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Hmm..... that's strange because I just checked the specs for your new fogs and they are 55W - the same as the factory lamps

You could try shutting down the lamp monitoring function in the 2 x Leuchte-sets - but it addresses the affect of the fault, rather than its cause (not something that I like!)
Anyhow, pending better advice from anyone else, it's done like this:
  • ENG116948-ENG116102-Leuchte12NL LB45-Fehlerort mittleres Byte DTC-DFCC 12 > 0
  • ENG116949-ENG116121-Leuchte13NL RB5-Fehlerort mittleres Byte DTC-DFCC 13 > 0

Don
 
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Chimuel

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No luck with that one --I tried inputting 0 and it gave me an error:


I input 00 but I still get the Check Bulb Warning.
 
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DV52

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^^^ not "00", just enter "0"
 
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Chimuel

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^^^ not "00", just enter "0"
I entered 0 and the message I got was the screenshot. I entered 00 hoping it would have the same effect as 0.
 
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DV52

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^^ got me stumped - Ive changed these exact channels on ALL 35 x Leuchte-sets on the BCM on my test bench without any problems using both my HEX-NET and my HEX-CAN cables.

And, a setting value of 0 is acceptable for the Fehlerort mittleres Byte DTC-DFCC channel on your BCM (look @ ENG116950-ENG116140-Leuchten14AL LB6-Fehlerort mittleres Byte DTC-DFCC 14 on your admap)



Don
 
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   #9  

Chimuel

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How would I go about getting a fix for this? I have set this value to zero a few times before but I only have access to the latest VCDS release or the beta release.
 
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Uwe

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^^ got me stumped - Ive changed these exact channels on ALL 35 x Leuchte-sets on the BCM on my test bench without any problems using both my HEX-NET and my HEX-CAN cables.
Some difference in the firmware between the module you have on your bench and the module Chimuel has?

-Uwe-
 
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   #12  

Chimuel

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^^ got me stumped - Ive changed these exact channels on ALL 35 x Leuchte-sets on the BCM on my test bench without any problems using both my HEX-NET and my HEX-CAN cables.

And, a setting value of 0 is acceptable for the Fehlerort mittleres Byte DTC-DFCC channel on your BCM (look @ ENG116950-ENG116140-Leuchten14AL LB6-Fehlerort mittleres Byte DTC-DFCC 14 on your admap)



Don
Hey Don,

So I did a bit of experimenting. The check fog light bulb messages only appear when the headlight switch is on the AUTO position with the low beam triggered ON or when the headlight switch is on the Low Beam position. For both instances, the warning shows up when making a tight turn at low speeds (cornering lights).

I had disabled the cornering lights (abbiegelicht function for both the RB5 and LB45 'B' channel) and still get the error message.

So for the headlight switch positions and instrument warning:
0 --no warning
AUTO - Off, no fog pull (front/rear) --no warning
AUTO - Low Beam triggered --check fog light bulb
AUTO - Low Beam triggered, front fog pulled and working --check front fog light bulbs
AUTO - Low Beam triggered, rear fog pulled and working --check front fog light bulbs
PARK - no fog - no warning
PARK - front fog pulled, front fog lights working --no warning
PARK - rear fog pulled, all fog lights working --no warning
Low Beam - making a low speed tight turn, cornering lights working properly --check front fog light bulbs
Low Beam - front fog pulled and front fog lights working --check front fog light bulbs
Low Beam - rear fog pulled and all fog lights working --check front fog light bulbs

Am I missing any other coding to disable cornering lights entirely? I wish I had my hands on a stock Channel 09 Admap from a car with halogen headlights and fog lights from the factory.
 
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DV52

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chimuel: hmm......... why don't we reset this discussion and my hitherto incorrect guesses (my ego has taken a near-fatal pounding!)?

Let's go back to basics: post-up a new and unedited auto-scan and also post-up a current BCM admap -please.

Don
 
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   #14  

Chimuel

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   #15  

DV52

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Chimuel: Wow, you have been prolific - a complete set of admaps stamped 19 May 14:15 hrs!!. I'm very impressed and thank you for going to this effort!

So - some interesting observation as follows:

1. I note that Lichtfunktion B on both Leuchte12NL LB45 and Leuchte13NL RB5 is programmed for cornering lights as per our previous discussions.

2. I also note that Byte 2 Bits 0-2 on the BCM code string has the value hex00 - so the module believes that the car has bog-standard incandescent headlights without any fancy add-ons (like AFS, or FLA)

3. I further note that the settings for the group of adaptation channels in the BCM with the parent name "Static AFS" (this bank of channels control the operational behavior of the cornering light function) are entirely unremarkable. Each of the 11 x channel values in this group have the same values as numerous other BCM s in my database.

4 hmm.... something odd!! I opened the BCM admap in MS Excel and I used the find-function with the search vector name "abbiegelicht". I was expecting 2 x hits in the Leutche-set sector (i.e. the 2 x front fog-lights) - but strangely the search returned 4 x hits.

The additional 2 x channels are - Lichtfunktion B on Leuchte16BLK SLB35BLK SL KC9 and Leuchte17TFL R BLK SRB3TFL R BLK SR KC3. Also, the Nebellicht links/rechts command is used on Lichtfunktion A on these 2 x Leuchte sets.

Now, I'm not sure about the details for the rear lights on you particular model mk7, but normally these 2 x Leuchte-sets control the inner turn-signal lights and they are only activated on vehicles with LED tail light fittings.

The Lasttyp channel settings on these 2 x Leuchte-sets on your BCM are for LED lamps, which suggests that the car does indeed have LED tail light fittings. However, the setting for the Lasttyp channel on the Leuchte-sets for your brake lights is for incandescent lamps - which kind-of contradicts my previous deduction and on the contrary, it suggests that the car doesn't have LED tail light fittings.

So, I'm in a quandary on multiple fronts: why are the Leuchte-sets activated for the lamps that normally reside on the 2 x inner turn signal lights and why are they programmed to operate as front fog lights and also, why has the BCM been asked to use lamps at the rear of the car as cornering lights?

I'm confused!! Please explain?

Don
 
   #16  

Chimuel

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You solved it Don!

So the C3 and C9 pins were at one point my fog lights from my original CECM (see post #10 in this thread: https://forums.ross-tech.com/showthread.php?13303-2015-MK7-Golf-Sportwagen-Fog-Lights ).

So what had happened between that post and this most recent mishap was:
  • Original CECM (5Q0 937 087 Q) did not have pins for proper fog lights at B5/B45 pins, I substituted C3 and C9 pins --all was well and good.
  • Being the OEM guy that I am, I ordered a used CECM (5Q0 937 087 R) that had the proper pins and had Dealer B program it to the car through ODIS --they maintained the coding I had on the original CECM and I adjusted C3/C9 to be not active and had B5/B45 programmed properly.
  • I usually take my car to Dealer A for maintenance, etc --I've got a great relationship with them but they ultimately are not mod friendly (which is why I have Dealer B do my modifications such as ECU tunes). Anyway, I had my wife take the car to Dealer A and they noticed an issue with the keyfob --no problem, they have warranty provide an additional new key.
  • A week or so passes and the problem with the keyfob returns... wife takes car to Dealer A again. Dealer A agrees that it is not one of the 3 keyfobs I have but the CECM. Fantastic --new CECM (5Q0 937 087 S) covered under warranty as well, however they were not willing to maintain the current coding changes I have made and returned it to factory settings. Thankfully I have a log of every change I have made to the car.
  • I brought the coding back to the way I had it before the third and last CECM swap --not sure how the C3 and C9 channels were able to get those adaptations into them but now I have disabled them after you had pointed it out!

Thank you so much Don, hopefully this restores your ego! --It definitely stumped me for a couple of weeks there!
 
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