I had a similar issue as 73touring that I was able to resolve. I had trouble finding the EFL 300 mentioned above so I went into my local O'Reilly auto parts store to see if they had a flasher that would work. Their system pointed me to a 3-prong flasher with terminals labeled "+", "-", "L". I bought the flasher and tried to make it work to no avail... no matter which combination of three wires were plugged into the leads, the dash indicator never worked (although the flashers themselves were functional). I returned the unit, did some more sleuthing online, and found www.memotronics.com where I ordered an EF33 flasher unit, which has terminals "X", "P", "L". Plugged it in as specified above and it works like a champ.