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Author Topic: Flasher units  (Read 1134 times)

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Offline Stephen Dietrich

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Flasher units
« on: June 01, 2013, 04:40:12 PM »
How can you test a flasher unit to see if it is functional? I have a half dozen and don't know if any are working. I am also have some problems with the number designations. Some are obvious, 15 power in, 54 power out, 31 ground and K to indicator lamp. The one which was in the car but not connected has 49, 49a, C, C0 and C2. I also have one with 84, 84a and 84b. And another 49, 49a and C which I believe is equivalent to 15, 54 and K designations. Any insight would be great. Stephen
Stephen Dietrich
1952 MBZ 170Da OTP
1952 MBZ 300 Cabriolet
1978 Porsche 911SC Targa
1962 Porsche 356B Super

Offline Stephen Dietrich

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Re: Flasher units
« Reply #1 on: June 01, 2013, 04:47:45 PM »
Here is the one which was in the car. As pictured C0 12 o"clock position, 49 1 o'clock, C2 4 o'clock, 49a 6 o'clock and C 10 o'clock position.
Stephen Dietrich
1952 MBZ 170Da OTP
1952 MBZ 300 Cabriolet
1978 Porsche 911SC Targa
1962 Porsche 356B Super

Offline John Ellis

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Re: Flasher units
« Reply #2 on: June 02, 2013, 03:27:10 PM »
Here you go for flasher connections.

15, "B", and 49 (DIN)         power source from the battery, fused power, or ignition switch
"K", "P", and 49A (DIN)      power to signal indication light
54, "L", and 49B (DIN)       power to the turn signal switch which after the switch splits to left and right turn lights
49C (DIN)                          if equiped with this terminal it is a spare output (NO/NC ????)
31                                      ground .... note that a flasher may not have a ground terminal, but the mounting may be the ground.


The units you described with 80's numbers are relays and not flasher relays.
John Ellis
1953 170Vb
1958 190
2007 Porsche Cayman

Offline Stephen Dietrich

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Re: Flasher units
« Reply #3 on: June 02, 2013, 04:01:26 PM »
Thank you John!! I was able to test the units and had 5 out of 7 which actually worked. The 2 which I thought for sure wouldn't, did. What a pleasant surprise.
Stephen Dietrich
1952 MBZ 170Da OTP
1952 MBZ 300 Cabriolet
1978 Porsche 911SC Targa
1962 Porsche 356B Super