maksymus

Here is the breakdown for the facelift LED fog light retrofit on Skoda Superb MK3. On the old pre-facelift fog lights, Pin 1 was the main power wire with a 1.5 mm² cross-section, and the other pin was ground. On the new facelift LED fog lights, the pin layout is different: Pin 1 is for the 0.5 mm² PWM signal wire, and Pin 3 is for the 1.0 mm² main power wire. Because of this, you must swap and re-route the pins during installation. Specifically, you take the original 1.5 mm² power wire from the old fog light harness and move it from Pin 1 to Pin 3 on the new connector. Then, you take the new 0.5 mm² signal wire coming from the headlight and connect it to Pin 1 on the new fog light connector. Because you are splitting the functions between two different pins and wires, you must also change the channel assignments in the BCM (09 Central Electrics) module accordingly. In the BCM adaptations, set Lampentyp for the Signal Channel (Pin 1, 0.5 mm² wire) to 6 - LED-Lichtmodul to deliver the low-current PWM control signal. For the Power Channel (Pin 3, 1.0 mm² wire on channel 55L), set Lampentyp to 32 - Allgemeine LED bis 12W or 36 - LED Kleinleistung to provide a constant 12V power supply without pulse modulation and ensure correct diagnostic fault monitoring.

Good day. I followed all the instructions in the article, coded it, adapted it, checked it twice, and repinned the wires properly according to the diagram. Now the turn signals aren't working, the DRLs were working but stopped, and the headlights were working but went into limp mode. Please advise on what to do. Thank you.