Where is Ground Connection"B" ? |
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Where is Ground Connection"B" ? |
kenshapiro2002 |
Sep 23 2009, 12:21 PM
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#1
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Senior Member Group: Members Posts: 1,443 Joined: 23-July 09 From: Bawlmer, MD Member No.: 10,598 Region Association: MidAtlantic Region |
Where is the ground numbered #83 (Ground connection "B") on a 1970 914? It's not the one in the rear trunk, and not the one by each headlight. It's the one that grounds all the dash switches, door switches, fan and heater switch, etc.
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kenshapiro2002 |
Sep 24 2009, 01:32 PM
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#2
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Senior Member Group: Members Posts: 1,443 Joined: 23-July 09 From: Bawlmer, MD Member No.: 10,598 Region Association: MidAtlantic Region |
OK...pin 31 (ground) is excellent. Pin 49 is getting 12 volts and it's not fluctuating with the different loads. This seems wrong though...as soon as I turn on the ignition, the flasher relay is getting 12 volts, but it's not making any sound. I guess it's quiet until it gets a signal from the flashers through one of the other pins?
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kenshapiro2002 |
Sep 24 2009, 05:20 PM
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#3
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Senior Member Group: Members Posts: 1,443 Joined: 23-July 09 From: Bawlmer, MD Member No.: 10,598 Region Association: MidAtlantic Region |
Yeah...after looking at the schematic, I think it's normal for the red lead to be "hot" as soon as the ignition is turned on. Seems the flasher relay is good as is its ground and power source. My rookie guess is till that something else is wrong and is powering up the relay through the ground wire.
Significant evidence seems to me to be: When I took delivery of the car, the problem did not exist. The brake light switch on the brake pedal was so far out of adjustment that no brake lights went on. I fixed that. Unplugging it does not eleviate my current problem. The handbrake switch was screwed up and did not work either. I freed that up now and it works. There was no bulb in the multi gauge for the handbrake light / brake failure. A PO had[i] to have removed it because of some electrical glitch that had it on all the time. When I took delivery of the car, the turn signal indicators were screwy. One of them would flash correctly (can't remember which one), and the other would start to flash on its correct side, and then both arrows would start to flash at the same time. OK...pin 31 (ground) is excellent. Pin 49 is getting 12 volts and it's not fluctuating with the different loads. This seems wrong though...as soon as I turn on the ignition, the flasher relay is getting 12 volts, but it's not making any sound. I guess it's quiet until it gets a signal from the flashers through one of the other pins? |
SirAndy |
Sep 24 2009, 05:28 PM
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#4
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Resident German Group: Admin Posts: 41,815 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
would start to flash on its correct side, and then both arrows would start to flash at the same time My memory on that is a bit hazy, but i have seen a lot of 914s do that. It's either a bad switch or a ground problem. I fixed it on my car by adding an additional ground to those bulbs, but that's a bandaid. I think they are supposed to be grounded at one of the switches. But like i said, it's been years since i worked on this the last time. Maybe it's time to whip out the good 'ole search function because i also vaguely remember a solution posted here a while ago. (IMG:style_emoticons/default/chowtime.gif) Andy |
kenshapiro2002 |
Sep 24 2009, 06:04 PM
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#5
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Senior Member Group: Members Posts: 1,443 Joined: 23-July 09 From: Bawlmer, MD Member No.: 10,598 Region Association: MidAtlantic Region |
Never had any luck with the search function on this site...not sure why.
would start to flash on its correct side, and then both arrows would start to flash at the same time My memory on that is a bit hazy, but i have seen a lot of 914s do that. It's either a bad switch or a ground problem. I fixed it on my car by adding an additional ground to those bulbs, but that's a bandaid. I think they are supposed to be grounded at one of the switches. But like i said, it's been years since i worked on this the last time. Maybe it's time to whip out the good 'ole search function because i also vaguely remember a solution posted here a while ago. (IMG:style_emoticons/default/chowtime.gif) Andy |
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