SoCalManche Posted May 8, 2020 Author Share Posted May 8, 2020 Just now, eaglescout526 said: Hmmmmm, well what the pic is from the book is probably what you would see if you tore out the fuse box and were looking at that head on. So my guess is is that some of the prongs on the engine side are probably shared by two smaller clips on the otherside, say if it was a power or ground wire. But that's the only pic the 86 electrical manual gives of C100 Well that's weird because C4 doesn't have a prong for me. Link to comment Share on other sites More sharing options...
eaglescout526 Posted May 8, 2020 Share Posted May 8, 2020 That's exactly why I think it is for the inside view under the dash. But theres no way to find the orange wire to the connector is there? Link to comment Share on other sites More sharing options...
SoCalManche Posted May 8, 2020 Author Share Posted May 8, 2020 1 minute ago, eaglescout526 said: That's exactly why I think it is for the inside view under the dash. But theres no way to find the orange wire to the connector is there? I mean, the orange wire could be connected to that void? Or no? I honestly have no idea. Link to comment Share on other sites More sharing options...
eaglescout526 Posted May 8, 2020 Share Posted May 8, 2020 I honestly have no idea. But it should be one of the few prongs with power when you jump the relay. Link to comment Share on other sites More sharing options...
SoCalManche Posted May 8, 2020 Author Share Posted May 8, 2020 9 minutes ago, eaglescout526 said: I honestly have no idea. But it should be one of the few prongs with power when you jump the relay. Okay, so for all intents and purposes, let's split C-100 in half as Left and Right. Looking at my connector in the picture, the right connector block's first prong in the upper left corner with be notated as R_1, followed by R_2 next in line, and so on, moving left to right, top to bottom. With that said, R_7 is only one with battery voltage, and R_5 was 0.25V. The only notable occurrences were R_2 and R_4 showing erratic voltage readout, but mostly erratic in mV, so who cares, yeah? Link to comment Share on other sites More sharing options...
Ωhm Posted May 8, 2020 Share Posted May 8, 2020 Isn't R = A. May have some tar on it. Link to comment Share on other sites More sharing options...
SoCalManche Posted May 8, 2020 Author Share Posted May 8, 2020 7 minutes ago, Ωhm said: Isn't R = A. May have some tar on it. I was just using that as a simple annotation since I didn't know the proper terminology. Regardless, I'm assuming the only battery voltage prong is the FP? Link to comment Share on other sites More sharing options...
Ωhm Posted May 8, 2020 Share Posted May 8, 2020 34 minutes ago, SoCalManche said: I mean, the orange wire could be connected to that void? Or no? I honestly have no idea. Follow orange. Can't be too many orange wires at C100. We know it passes through because we have voltage at fuel pump motor. Link to comment Share on other sites More sharing options...
Ωhm Posted May 8, 2020 Share Posted May 8, 2020 2 minutes ago, SoCalManche said: Regardless, I'm assuming the only battery voltage prong is the FP? No. Need to install jumper wire at FP relay again. Link to comment Share on other sites More sharing options...
SoCalManche Posted May 8, 2020 Author Share Posted May 8, 2020 Just now, Ωhm said: No. Need to install jumper wire at FP relay again. That was with jumper wire installed. Can't trace wires into connector. Link to comment Share on other sites More sharing options...
Ωhm Posted May 8, 2020 Share Posted May 8, 2020 1 minute ago, SoCalManche said: Can't trace wires into connector. I see what you mean. Link to comment Share on other sites More sharing options...
SoCalManche Posted May 8, 2020 Author Share Posted May 8, 2020 7 minutes ago, Ωhm said: I see what you mean. What else would be showing battery voltage on those prongs besides FP? I'm assuming that one is the FP considering it was jumpered. Link to comment Share on other sites More sharing options...
eaglescout526 Posted May 8, 2020 Share Posted May 8, 2020 I can’t imagine anything else showing voltage. Can’t turn the truck on with that unplugged. Link to comment Share on other sites More sharing options...
Ωhm Posted May 8, 2020 Share Posted May 8, 2020 @eaglescout526 Can you look up power distribution 2.5L in that 86 manual. 87 shows C100_D4, C100_D1 & C100_E1 as being HOT AT ALL TIMES. Link to comment Share on other sites More sharing options...
eaglescout526 Posted May 9, 2020 Share Posted May 9, 2020 Yes give me a little bit. Link to comment Share on other sites More sharing options...
SoCalManche Posted May 9, 2020 Author Share Posted May 9, 2020 42 minutes ago, Ωhm said: @eaglescout526 Can you look up power distribution 2.5L in that 86 manual. 87 shows C100_D4, C100_D1 & C100_E1 as being HOT AT ALL TIMES. 14 minutes ago, eaglescout526 said: Yes give me a little bit. You guys are great! Link to comment Share on other sites More sharing options...
eaglescout526 Posted May 9, 2020 Share Posted May 9, 2020 1 hour ago, Ωhm said: @eaglescout526 Can you look up power distribution 2.5L in that 86 manual. 87 shows C100_D4, C100_D1 & C100_E1 as being HOT AT ALL TIMES. Ωhm. These are correct as well for 86. Didn't mean to take that long, out and about. Link to comment Share on other sites More sharing options...
SoCalManche Posted May 9, 2020 Author Share Posted May 9, 2020 18 minutes ago, eaglescout526 said: Ωhm. These are correct as well for 86. Didn't mean to take that long, out and about. No worries! I will check these! Link to comment Share on other sites More sharing options...
eaglescout526 Posted May 9, 2020 Share Posted May 9, 2020 So including the bypassed relay, 4 should have power. I would not bypass the relay right now and find the 3 that have power so it makes finding the bypassed wire easier. Link to comment Share on other sites More sharing options...
SoCalManche Posted May 9, 2020 Author Share Posted May 9, 2020 1 minute ago, eaglescout526 said: So including the bypassed relay, 4 should have power. I would not bypass the relay right now and find the 3 that have power so it makes finding the bypassed wire easier. Alright. Now I have to just verify how accurate the diagram is to my connector. Link to comment Share on other sites More sharing options...
eaglescout526 Posted May 9, 2020 Share Posted May 9, 2020 Yeah I would be skeptical on how accurate it is but it'll get figured out. Link to comment Share on other sites More sharing options...
SoCalManche Posted May 9, 2020 Author Share Posted May 9, 2020 So three are HOT without jumper. Should I leave the relay out too? Link to comment Share on other sites More sharing options...
eaglescout526 Posted May 9, 2020 Share Posted May 9, 2020 Ok so you found the three that are hot. Now the fourth one shall become hot when you put in the jumper. Leaving the relay in while finding the first three was fine. Once the fourth one is found we need to see how many volts are getting there. Link to comment Share on other sites More sharing options...
SoCalManche Posted May 9, 2020 Author Share Posted May 9, 2020 1 minute ago, eaglescout526 said: Ok so you found the three that are hot. Now the fourth one shall become hot when you put in the jumper. Leaving the relay in while finding the first three was fine. Once the fourth one is found we need to see how many volts are getting there. Haha, sorry. I was kind of talking out loud about needing to find three. I haven't found that. I just wanted to know if I needed to check with or without relay in socket. And you gave me the answer accidentally! I'll report back briefly. Link to comment Share on other sites More sharing options...
eaglescout526 Posted May 9, 2020 Share Posted May 9, 2020 Yeah whether the relay is in the socket or not, we will still find the three that are hot. No worries about talking out loud, helps one to think. Link to comment Share on other sites More sharing options...
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