VCDS (VAG-COM) codes and programmable options for Golf Mk7

[deadcat]

Sorry Don. I didn't give you enough details. I have scanned the full instructions: Microsoft OneDrive - Access files anywhere. Create docs with free Office Online.

My car has tail lights that look like this:



They are LED clusters with no inner indicator lights - only outers.

The wiring kit included did not include connectors - only pins. The instructions have steps for popping open each of the existing connectors in the rear of the car and moving existing pins (to repurpose as you mentioned) as well as insert the new pins.

There do not appear to be any spare wires in the existing connections to the BCM. I do have the appropriate tools to pop the pins out (I wired up a Helix audio upgrade last year).

I've been told there is a method for connecting the lights that avoids needing to run the new wire to the BCM and adds some additional wiring between the inner and outer clusters, but I'm not sure how that would work. Correct me if I'm wrong, but I'm guessing this would rely on drawing power from the outer indicators and the inners presumably already have a circuit to delay the blink slightly and give the "dynamic" effect.

I suspect I am best following the instructions (scanned in) instead of overthinking it.

[DV52]

@deadcat: hmm........if I'm reading the installation sheet correctly, it ain't quite as you describe in your original post (no offense intended).

You said this:

The instructions in the box advise that I need to wire as follows:

• Run new wire from BCM (connector C). Remove pin 9. Remove pin 3, and insert into pin 9. Put new wire into pin 3,

But the instructions say (I think):

• Run new wire (yellow) from BCM (connector C).
• Remove wire on pin 9.
• Remove wire on pin 3, and insert into (vacant) pin 9 position.
• Insert wire from (old) pin 9 into (vacant) pin 3 position.
• Put new wire (yellow) into pin 6 position - which presumably was factory vacant.

So, which of the two methods did you actually implement?

Still very confusing - but from the vehicle picture, it appears that the yellow wire is connected to all 4 x tail-light fittings. I'm guessing therefore that the yellow wire is +ve VOLTS (T15 volts maybe?). Because the yellow wire is connected to BCM pin 6 (Socket C), it will be controlled by Leuchte27NSL RC6. So you will need to activate this Leuchte-set and add the Leuchte-command for T15 volts - which is Klemme 15 ohne Nachlauf.

The new Blue wire joins together lamps on both inner/outer fittings on the left-side and the White wire does the same on both right-side fittings. But I'm not sure which lamps are joined given that you say that the tail-lights fittings have "no inner indicator lights".

I assume that the lighting functions for the individual lamps on the new outer and inner fittings are:

Outer:

• Brake
  
• Turn Signal
  
• Parking Light

Inner:

• Parking Light
  
• Reverse
  
• Fog (right-side only)

Is this correct for the new fittings (do you have a diagram of the lighting positions for the new fittings)?

As you can see, the only common lighting function in the outer/inner fittings is the Parking Light - maybe the Blue/White wires replace the wires in the native vehicle loom for the inner Parking Lights. If so, Leuchte23SL HLC10 and Leuchte24SL HRA65 will need to be disabled (however, I'm not sure why this modification is used when the factory method for illuminating the Parking Light on the inner fitting works perfectly well without the need for the blue/white wires)

Final question - with the wiring completed and with no coding changes, describe how each lamp operates - please. And what errors appear on the SCAN report for this car?

Don

[deadcat]

Hi Don. I haven't made any wiring changes yet. I have simply connected up the new lights with the existing connectors. Lights appear to work (except the inner indicators - and I didn't check the fog light). There are no error codes.

I will take photos tomorrow of the old and new clusters and verify both the location and type of each lamp, and functionality. Thanks!

But I'm not sure which lamps are joined given that you say that the tail-lights fittings have "no inner indicator lights".

What I mean is:

1. The original factory clusters do not have inner indicators
2. The new clusters DO have inner indicators, but they do not currently do anything

[DV52]

What I mean is:

1. The original factory clusters do not have inner indicators
2. The new clusters DO have inner indicators, but they do not currently do anything

Arrhhh........ that's different to my previous understanding - the new 4 x wire harness makes much better-er sense now!!

My previous confusion about the purpose of the Blue/White wires now evaporates - clearly these wires join the inner/outer turn-signal lamps together on each car side (because the factory wire loom for the original fittings doesn't have a turn-signal wire for each of the inner fittings).

And the new revelation explains why the yellow wire is also connected to the inner fittings - because a T15 Voltage is also needed to supply power for the LED chaser circuits that operate the inner dynamic turn-signal function.

So, before suggesting changes to the Leuchte-sets on this car, I need 3 x further confirmations as follows:

ONE- please confirm that the old fittings are like this (picture from @ArdiL -see post #1882 on this thread)

Attachment 54964

TWO - please confirm that Leuchte17TFL R BLK BLK SRB3TFL R SR KC3 and Leuchte16BLK SLB35BLK SL KC9 on this car has the values in the "Default setting" columns below (again from @ArdiL):

Attachment 54965Attachment 54966

THREE - please confirm that (with the new harness installed) the Single-Side Parking Light function operates correctly. Meaning that with ignition-OFF and the turn-signal stalk position switched to a car-side, the Parking Light lamp(s?) on the new inner tail-light fitting illuminates on the correct car-side

Don

[deadcat]

I've have another look.

One

Yes, my old light fittings are like that.




Two

I've checked Leuchte17TFL R BLK BLK SRB3TFL R SR KC3 and Leuchte16BLK SLB35BLK SL KC9. The only different values were:

Fehlerort mittleres Byte DTC-DFCC 23 - Value set to 29
Fehlerort mittleres Byte DTC-DFCC 24 - Value set to 2A

Three

Single side parking light works correctly - inner tail light illuminates (red) on correct side.
Yes, my light fittings are like that.

Other Issues

I test each of my light functions. I found the reverse lamp and fog light appear to be switched.



Here is a picture of the new harness that was included:



Here is the description on the box:



Left inner connector (new light):



Right inner connector (new light):

[DV52]

OK -as per the famous African adage - the only way to eat an elephant is one bite at a time!!

So, let's try to get the dynamic turn-signal lamps operational first. As per the instructions - the yellow wire was terminated onto pin #6, Socket C of the module that OBD11 calls central electrics. The Leuchte-set that controls this pin is Leuchte27NSL RC6. Because there was no wire on this pin prior to this project, this Leuchte-set would have been factory disabled (I think)

If my guess is correct about the yellow wire being the power supply for the LED chaser circuits - the above Leuchte-set will need to be enabled AND the appropriate Leuchte-command for T15 Volts added ("T15" = switched battery rail volts ONLY when ignition is turned-ON)

Try this:
Leuchte27NSL RC6

• Lasttyp 27 > 6 - LED Lichtmodul (nicht aktiv)
• Lichtfunktion A 27 > Klemme 15 mit Nachlauf bis Fahrzeugstillstand (nicht aktiv)
• Dimmwert AB 27 > 127 (0)
• Lichtansteuerung HD AB 27 > Always (Always - check this)

Note: bracketed values = current settings. Don't proceed if these values are different on your hex09 module

After you make these changes and if the dynamic turn-signals don't operate correctly - grab a multi-meter and check that battery rail volts appear on the yellow wire connections on the tail-light ends (i.e. on the 4 x fittings) -volts only when ignition-ON

Apropos of the strange reverse/fog-light mix-up - do these tails have a reverse-light on either car-side? If so, is the left-side reverse light involved in the mix-up as well?

And, the right-side reverse-light on a Golf mk7/7.5 normally provides the +12V trigger signal to operate the Rear-View Camera. In the current state, does the RVC operate correctly on this car? If so, my hunch is that the problem here is one of connecting the correct "crimp contact" (i.e. wire-colour termination) into the the correct "chamber number" (i.e. pin position) on the inside fittings.

I had trouble understanding the installation instructions for the inside fittings (particularly for the fog-light position for a RHD car). Anyhow, my way of making sense of which reverse/fog-light wire to install into which pin position is like this:

1. Turn-ON the reverse lights
2. On the termination connector for the right-side inner-fitting, identify which "crimp contact" has volts. This is the fog-light wire - remove this "crimp contact"
3. Turn-OFF reverse lights.
4. Turn-ON the fog-light and repeat the procedure in step 2 to identify the reverse-light wire - remove this "crimp contact"
5. Swap the chamber numbers for these 2 x "crimp contacts"
6. Test again

Don

[deadcat]

Hello, sorry for delay getting back to you. I have run the wire to the BCM, and re-pinnned the connectors. I had to swap the reverse light/fog light wires, which sorted out the issue there. Note the reverse camera worked fine before and after.

I can't get the inner turn signals to work. I updated Leuchte27NSL RC6 as advised. This resulted in a fault:

  U101400 - Control module incorrectly coded
            static
                Date: 2023-02-18 02:12:07
                Mileage: 34355 km
                Priority: 2
                Malfunction frequency counter: 1
                Unlearning counter: 29
                Terminal 15 status: On
                Terminal 50 status: Off
                Voltage: 11.4 V
                Outside air temperature: 23.5 °C
                Status Bremslichtschalter (HW): Off
                Status Bremslichtschalter (CAN): Off
                Off: operated
                Parking light: not activated
                Automatic high beam assist: not activated
                Low beam: not activated
                Parking light left: not activated
                Parking light right: not activated
                Letzte Weckursache/ Werte [00;2E]: keine Störschutzursache
                CAN-Bus_aktiv: On

Then I changed Lasttyp 27 to "40 - Allgemeine LED", and was able to clear the fault.

I've checked with my multimeter - the yellow wire is getting voltage when the ignition is on, but the inner turn signals still do not do anything.

[deadcat]

Ok, I've discovered some other issues. Now I have no inner brake lights, and the inner turn signals are turning on as tail lights (instead of the inner red ones, which are not turning on).

[deadcat]

More progress!

I set:

Leuchte27NSL RC6
Lasttyp: 40 - allgemeine.

Leuchte17TFL SRB3TFL R SR KC3
Lasttype: 43 - allgemeine
Lictfunktion A 16 - Blinken rechts Hellphase


Leuchte16BLK SLB35BLK SL KC9
Lasttype: 43 - allgemeine
Lictfunktion A 16 - Blinken links Hellphase


Dynamic turn signals are working now!

I still need to fix my parklights (as they are currently set on KC3 and KC9).

Also, my inner brake lights don't illuminate (regular red tail lights do).

[DV52]

OK, good progress - well done !!!

I'm surprised that changing Lictfunktion A to Blinken links/rechts Hellphase enabled the dynamic turn-signal lamps because the KC3/KC9 Leuchte-sets normally control the inner Park Lights (see the table in my earlier response)

According to the table in my earlier response, the factory coding for Lichtfunktion A = Standlicht allgemein (Schlusslicht; Positionslicht; Begrenzungslicht). This is the Leuchte command for the parking light function.

If you have replaced this setting for the "Hellphase" command, maybe this explains why you "still need to fix my parklights"?

Also, I wouldn't worry about "my inner brake lights don't illuminate". As factory coded, the inner lamps don't illuminate as brake-lights - it requires the tweak to do operate in this manner. My suggestion is to get the new tails operating correctly without this tweak in the first instance. Only after you succeed with this task - attempt the 5 x brake light tweak

Don