2005 C6 Avant Comfort Control Unit Wiring

[basil31]

Hi, i've tried searching hte internet and Elsawin for 2 weeks to get this information but cannot find the answer.
i'm trying to fit a towbar, and need to hack into the 32 pin connector in the Comfort Control Unit.

i am aware Orange/Brown and Orange/Green wires are CAN/H CAN/L, so those 2 are sorted.

does anyone know what the Black/White (slot 19); Black/Red (slot 20); Black (slot 21) relate to?

i'm trying to link these up to an existing loom i have but cannot find which wires are what.

Audi's wiring diagram suggests Brake Lights/ESP/Crash, but don't identify which is which as all are coloured green on their plan.

thanks in advance.

[dan2485]

pin 20 (j393) red/black goes B3 on the (J345) trailer module.
pin 19 (j393) black/white goes B4 on the (J345) trailer module.

Is the black wire a 6mm wire?

[basil31]

pin 20 (j393) red/black goes B3 on the (J345) trailer module.
pin 19 (j393) black/white goes B4 on the (J345) trailer module.

Is the black wire a 6mm wire?

thank you for the reply. the black pin 21 is the same size - around 2mm in diameter.

[dan2485]

Can post you engine and gearbox codes.

[dan2485]

this may help

Audi Portal: ECU Diagnostic . Audi A6 4F (2005- ) . Central Convenience J393

[basil31]

this may help

Audi Portal: ECU Diagnostic . Audi A6 4F (2005- ) . Central Convenience J393

thank you Sir! that is perfect. i've been searching all over for something like that for the past few weeks. most appreciated. ps, car is 4.2 (not FSI) with Auto box. think its classed as BAT engine with FGL/HKK box.

many thanks once again.