Audi A6 4F C6 2005-2012 Hanger Towbar Trailer Towing Westfalia RETROFIT
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4F0800491C, 4F0 800 491 C, 4F0800491D, 4F0800491H, 4F0800491G - tow hitch,swivel-type + 4x N10012402 - bolt M10x105 + 4x nuts + (6x washer N90476902 10.5x30x3 or 4x washer and 1x 4F0804903 threaded plate left and 1x 4F0804904 threaded plate right)
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4F0 813 961 A, 4F0813961 A - release lever - hand wheel
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4F0 907 383, 4F0907383, 4F0907383D aka J345 - Trailer detector unit
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6Q0937713, 6Q0 937 713 - 16 pin black connector aka T16f on trailer detector control
unit -
6Q0972883B, 6Q0 972 883 B - 12 pin red connector Westfalia aka T12n on trailer detector control
unit -
6Q0972883C, 6Q0 972 883 C - 12 pin blue connector Westfalia aka T12o on trailer detector control
unit -
3x terminal 926965-1 (6.3mm) fuse box pin
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3x terminal 964274-2 (2.4mm) red connector pin
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5x terminal 929939-3 (3.5mm) red connector pin
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1x N10098808 - M6X16-W bolt - for handwheel side + N90342504 speed nut M6X19,5X18
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1x N90952902 - M8X24 bolt for handwheel bottom
| PIN | color | endpoint | join | function |
|---|---|---|---|---|
| T12n/1 | brown | Earth connection 6, in main wiring harness | ||
| T12n/2 | black | T32d/21 - SF6 - 5A ??? SC4 10A ST3 ??? or J329 terminal 15voltage supply relay 2/87 | ||
| T12n/3 | red/black | T32d/20 | Brake light switch | |
| T12n/4 | black/white | T32d/19 | T17f/8 (ABS control unit) | |
| T12n/7 | orange/green | T32d/17 or T46b/14H | CANHIGH Comfort B397 | |
| T12n/8 | orange/brown | T32d/1 or T46b/14L | CANLOW Comfort B406 | |
| T12n/9 | red/purple | SF10 - 15A | T12O/10 | Fuse 10 on fuse holder F |
| T12n/11 | red/green | SF11 - 15A | Fuse 11 on fuse holder F | |
| T12n/12 | red/blue | SF12 - 15A | Fuse 12 on fuse holder F |
SC - fuses - right dash panel, ST3 (red)
J329 - terminal 15 voltage supply relay 1 - up to May 2007 or 9 from June 2007
F355 Contact switch on locking pin
- Page 127 in electronic manual
- 2pin connector 1J0 973 702 aka switch
- PIN 1 to T16f pin 12 - black/blue 0.5mm
- PIN 2 to T16f pin 8 - yellow/black 0.5mm
F354, K226, K227 Contact switch on hand wheel + Trailer towing attachment locked warning lamp
- T6 connector aka 4B0971978, 4B0 971 978
- T12 o - blue connector on trailer towing control unit 6Q0972883C, 6Q0 972 883 C
- T6 pin 1 brown output in T2 pin 2 (in my case grren/white) connector 1H0 973 121 C, 1H0973121 C (replacement 1J0973119, 1J0 973 119, male connector 1J0973332, 1J0 973 332) - it outputs in earth point -51- Earth point, on right in luggage compartment (picture A97-10040)
- T6 pin 3 black/grey to T12 o pin 4
- T6 pin 4 grey/blue to T12 o pin 5
- T6 pin 5 green/blue to T12 o pin 7 - towing attachment locked warning lamp
- T6 pin 6 blue/purple to T12 o pin 6 - towing attachment released warning lamp
T12 o - blue connector pinout
- T12 o pin 4 - to T6 pin 3 on towbar handwheel
- T12 o pin 5 - to T6 pin 4 on towbar handwheel
- T12 o pin 6 - to T6 pin 6 on towbar handwheel
- T12 o pin 7 - to T6 pin 5 on towbar handwheel
- T12 o pin 10 - to T2 pin 1 on connector 1J0973332 - endpoint SF10 (fuse box red/purple shared with T12n pin 9)
