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Defective (new!) relay?
A week or so back my blinkers and hazard flashers went out ('72 911) so thinking of the easiest solution I bought a new Flasher Relay. Once installed, as soon as I hit the button for the Hazard Flasher the flasher fuse (#2) blew immediately. I replaced the fuse, then with the key in the on position tried the blinkers (L/R) which immediately blew the (rear?) blinker fuse (#8?). I tried this a couple of times back and forth with the same result.
I put the old relay back in and the fuses do not blow but the flashers and blinkers do not work. Did I get a defective relay? OR what else could be going on here??? |
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11-29-2016, 04:16 PM
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Join Date: Jun 2009
Location: Manhattan Beach, California. Factory Delivery-Original owner-Retired engineer
Posts: 5,238
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Relay.
Are the P/N's on the original and new relay identical?
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1986 911 Targa. Per Road and Track magazine: Only in L.A.: In the window of a bar in Hermosa Beach, California. "Happy Hour prices during all car chases." |
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11-29-2016, 04:28 PM
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Join Date: Jul 2012
Location: Simi Valley, Ca.
Posts: 265
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Unhook all the wires except the 12V power. Turn the flasher on. If the fuse blows, the flasher is defective. If it doesn't blow, hook wires one by one until the fuse blows.
Bob B |
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11-29-2016, 04:46 PM
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86 911 Targa - The connector pins are the same on both units. How would I know beyond that? (excuse my ignorance but by P/N's I think you mean positives and negatives, is that correct?) There are no indicative markings on either relay.
Bob B - Not sure how I would do what you are suggesting. Pull the relay from it's socket then use temporary wire leads to connect one by one??? Are you possibly confusing the switch with the relay? Thanks for the help! |
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11-29-2016, 05:14 PM
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Designer King
Join Date: Mar 2004
Location: Toronto, ON Canada
Posts: 5,499
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P/N means part number.
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Paul Yellow 77 Sunroof Coupe/cork interior; 3.2L SS '80 engine/10.3:1/No O2; Carrera Tensioners; 11 Blade Fan; Turbo tie rods; Bilstein B6; 28 tube Cooler; SSI, Dansk; MSD/Blaster; 16x7" Fuchs/205/50 Firestone Firehawk Indy 500s; PCA/UCR, MID9 Never leave well enough alone |
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11-29-2016, 05:42 PM
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LOL...really embarrassed myself there! Thanks Paul.
I purchased the new relay from our host and yes it is the prescribed replacement part although there are three different manufacturers that are available. This one is manufactured by Wehrle (Germany) and is P/N 914-618-303-11-M206. ...seemed like a good choice. Comments? |
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11-29-2016, 05:53 PM
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ROW '78 911 Targa
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If you have an ohmmeter to use, with power off, check terminals IL, R and 49a on the hazard switch to ground looking for a dead short.
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Dennis Euro 1978 SC Targa, SSI's, Dansk 2/1, PMO ITBs, Electric A/C Need a New Wiring Harness? PM or e-mail me. Search for "harnesses" in the classifieds. |
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11-29-2016, 08:22 PM
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Thanks Dennis. I do have an ohmmeter so I can test this.
Question: Since it is blowing Fuse 2 when the Hazards are engaged and Fuse 8 when a Blinker is engaged does this give me any clue? As opposed to fuses 9 and 10? (Is this what you are pointing me to Dennis?) Last edited by TWJ; 11-30-2016 at 02:59 PM.. |
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11-30-2016, 01:04 PM
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What brand of flasher? If it's URO, they're çrap. I had one in, and it lasted for about a week. Whrle is the better unit.
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Bone stock 1974 911S Targa. 1972 914/4 Race Car |
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11-30-2016, 01:08 PM
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The Flasher relay is a Wehrle.
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11-30-2016, 02:33 PM
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Heinz
1974 Porsche 911S Targa
