The turn signals stopped working on my R129 following winter storage. There is no tell-tale click or instrument cluster indication. Also, the hazard lights do not work. Based on other posts on this subject, I have replaced the fuses (they looked good but...), pulled the hazard switch and checked the contacts and diode, and even opened up the combination relay so that I can manually close each of the L/R turn signal internal relays. When I manually close the internal relay, the turn signals actuate for that side and the familiar click can be heard under the dash. They do not blink of course, as I'm actuating the relay.

Does anyone have the diagnostic steps necessary to narrow down the problem? I'm guessing that it is the combination relay, but I would like other opinions before I drop the ~$250 for a new one.

Thanks

__________________
-Wayne

1994 E320 Coupe (120k)
1990 300SL (BBS,RENNtech adds)
1988 260E Sedan (180k)