Hans, I must be blind but I cannot find the 2004 1800C turn signal circuit (with the flasher).
Do you have that one hidden somewhere? I would really appreciate it.
It seems it has only 3 wires with an oval connector.
Fuse C (Brake, TS, Horn) White/Green to Flasher Gray wire to 6 pin Black conn to Middle contact of TS switch.
Flasher Green wire is Ground
Left TS switch to Orange wire, goes to 6 pin Blue conn. A splice to the front TS with bullet terminals.
The Orange wire continues to the 6 pin Brown conn to the Single TS indicator on the indicator cluster.
Right TS switch to Light Blue wire goes to the 6 pin Blue conn with a splice to front TS with bullet terminals.
The Light Blue wire continues to the 6 pin Brown conn to the Single TS indicator on the indicator cluster.
Between the Blue 6 pin conn and the Brown 6 pin conn is a splice where the Orange and Light Blue go to the
Right frame cover where they terminate in bullet terminals for the rear TS lamps..