Wiring Harness Question, What is this? |
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Wiring Harness Question, What is this? |
76-914 |
Jul 14 2011, 09:47 AM
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#1
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Repeat Offender & Resident Subaru Antagonist Group: Members Posts: 13,611 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California |
What do these go to. This car is a '73 which was originally a 1.7. I thought it was for the blower but it's not. It's the green and brown wires w/ the blue tape and comes off the small black harness that the coil wires come out of also.
Another shot showing the black harness from whence it comes. |
Cap'n Krusty |
Jul 14 2011, 10:44 AM
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#2
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
Early cars ('70-'72) had the blower wires in the engine harness, and they were green and brown. That looks like what you have. Easy enough to take the cap off the engine harness plug and look where they go, or just use an ohm meter. Once you know which pins they go to, looking at a wiring diagram is gonna provide the answer.
The Cap'n |
76-914 |
Jul 14 2011, 12:47 PM
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#3
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Repeat Offender & Resident Subaru Antagonist Group: Members Posts: 13,611 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California |
Early cars ('70-'72) had the blower wires in the engine harness, and they were green and brown. That looks like what you have. Easy enough to take the cap off the engine harness plug and look where they go, or just use an ohm meter. Once you know which pins they go to, looking at a wiring diagram is gonna provide the answer. The Cap'n When I had the engine out I ohmed all the wiring and determined that this was the fan blower leads per the schematic and pin location on the relay board connector. However, when the install came I found the other two wires and thought (IMG:style_emoticons/default/WTF.gif) And yes it is an engine from a 75-76 so it looks like I have duplicity, here. Yes? Any pit falls awaiting me?And thanks for the input everyone. |
Prospectfarms |
Jul 14 2011, 08:05 PM
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#4
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Member Group: Members Posts: 495 Joined: 7-March 11 From: Louisville, KY Member No.: 12,801 Region Association: Upper MidWest |
I had to sort this problem out last month when tracking a short in my ignition harness. To make sure I understand the issue and ror future searchers I'll try to rephrase the information set out in this thread concerning power to the blower fan.
The blower on my '72 is powered by a green wire that originates from #11 at the 12 pin connecter at the regulator plate. the wires branch from that harness coincident with the supply wires to coil terminals #1 and 15. 1973-76 blower motor supply wires are from #11 on the 14 pin connector. 76-914 suspects that the mystery wires come from the 12 pin and are a "redundant" set of blower leads, since the blower is already connected -- presumably to a later model body harness -- at pin 11 of the 14 pin connector. On 73-76 regulator boards, #11 on the 14-pin (body harness) connector shares continuity with #10 and #11 on the 12-pin (ignition harness) connector via a jumper. On 71 and 72 regulator boards there is no jumper. Sir Andy's suggestion is that since the blower is powered from #11 of the 14 pin, 76-914 should check to make sure the correct jumper wire is in place between the 12-pin and the 14-pin. If I messed this up I hope someone will let me know. |
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