W82.88-1030-02
1 Disconnect green/black line (1), between contact cavity 8/8 in the plug X2 of the tachograph (P1) and contact cavity 18/15 in the plug X1 of the WS/FSS control unit (A30), behind the tachograph (P1).
2 Attach plug contact to the separated green/black line (1) (tachograph side).
3 Attach plug contact to the separated green/black line (1) (WSS/FSS control unit side), together with the green/red line (2) from the plug X/B, contact cavity 3 of the toll system wiring harness.
4 Connect lines (1 and 2) as a Y-connector (3) as shown in the picture.
The tamper tell-tale (4) must not be removed in the process (paragraph 57b).