Scott Posted April 8, 2014 Share Posted April 8, 2014 I'm just sorting out all the interior, getting ready to put it all back together, and I can't for the life of me figure out what's going on with my stereo power. First of all the cigarette lighter is seeing 12v+ when the ignition is on. This would suggest that everything is OK around that area of the circuit and the fuse is OK. Is that right? Second, I checked the fuses as best I could, none of the top 2 rows are blown (I believe the stereo is on the second row?) I couldn't check the lower row as I couldn't see properly. Next, strangely when I check the voltage it's showing around 2 volts. This has me wondering what on earth is between the stereo positive cable and the fuse. I didn't want to start ripping into the loom just yet, in case something else needs to be plugged in for me to get power. The entire dash is stripped out and everything is unplugged including the ECU. I never thought to plug that in but I'm guessing that won't be the issue? It's the blue wire with the yellow stripe I'm checking. Thanks for any help, not sure what else to try and I don't want to just bodge in a new +ive feed Quote Link to comment Share on other sites More sharing options...
safcdixon Posted April 8, 2014 Share Posted April 8, 2014 Im gonna be no help here tbh, my stereo ceased working (no power to the system, but ariel still went up?) last year i tryed everything i could find on here, from mates or on a google search couldnt work out what was wrong, so ended up taking a live from the heater system as its a switched live hopefully you can work out whats up, As that may be the same problem I have, good luck Quote Link to comment Share on other sites More sharing options...
Scott Posted April 8, 2014 Author Share Posted April 8, 2014 Thanks. I just checked out the wiring diagram and checked the fuses that relate to it (RAD no1 on the main fusebox and RAD no2 on the kick panel). I also tried to check out what else should be connected, according to what I've read the electric mirrors should be on there. Checked them, they adjust fine? Not sure if it's the fold in mechanism that's meant to work as I haven't checked that yet. Quote Link to comment Share on other sites More sharing options...
Scott Posted April 8, 2014 Author Share Posted April 8, 2014 Ok having had a better look at the diagram it's nothing to do with the 7.5A side of the circuit (drivers side fusebox). It's all down to the 20A RAD no.1 fuse circuit. At the fuse I'm seeing 12v so between there and the radio it's dropping off. Would a short be unlikely here? I would have thought it would be obvious and not read a voltage at all at the open end? Quote Link to comment Share on other sites More sharing options...
Scott Posted April 8, 2014 Author Share Posted April 8, 2014 Success.... the system works. Followed through the diagram and kept coming back to connector IB1. Decided to check the connector there and see what the voltage was. Torch on, head in and........ unplugged Plugged it in and bobs your Auntie. As for your issue Saf, you can continue where I left off if you want? Check the voltage between RAD No1 fuse and the battery negative (Should read approx 12v) Take the small green plug out from the passengers side junction. Theres LOADS of plugs in there, this one is mint green and almost square, quite small) Check the voltage at pin 8. Should read approx 12v when checked to ground (chassis will be fine). If you don't see 12v then there is an issue between the fusebox and this pin. If you do see 12v but you don't see anything at the stereo connector (direct connection) then there is a broken wire in the small loom between the junction box and the radio. Best solution would be to find the blue and yellow wire coming out of the plug and splicing in a fresh wire here. That way the fuse is still in play etc. Hope that helps you Quote Link to comment Share on other sites More sharing options...
safcdixon Posted April 8, 2014 Share Posted April 8, 2014 Success.... the system works. Followed through the diagram and kept coming back to connector IB1. Decided to check the connector there and see what the voltage was. Torch on, head in and........ unplugged Plugged it in and bobs your Auntie. As for your issue Saf, you can continue where I left off if you want? Check the voltage between RAD No1 fuse and the battery negative (Should read approx 12v) Take the small green plug out from the passengers side junction. Theres LOADS of plugs in there, this one is mint green and almost square, quite small) Check the voltage at pin 8. Should read approx 12v when checked to ground (chassis will be fine). If you don't see 12v then there is an issue between the fusebox and this pin. If you do see 12v but you don't see anything at the stereo connector (direct connection) then there is a broken wire in the small loom between the junction box and the radio. Best solution would be to find the blue and yellow wire coming out of the plug and splicing in a fresh wire here. That way the fuse is still in play etc. Hope that helps you Good man! Nice work! Il check this out tommorow after work be good to tidy the loom behind the dash, of bodged works with stuff spliced here and there By chance which plug is Ibd 1 and where is it located Scott? My problem came about a few years back after stripping the dash out, since then ive put a new dash in (at the weekend) so surely i couldnt have missed a plug in twice? Quote Link to comment Share on other sites More sharing options...
Scott Posted April 8, 2014 Author Share Posted April 8, 2014 I doubt you will have missed it mate, as it controls quite a few things. I don't know if the engine would start. However, there seems to be a bit of confusion as to which plug is which. When I stuck my head in to check out the plug it was a square green one that was unplugged. According to the manual, that's IB2 rather than IB1. I'm not really sure why that cured my issue, unless there is confusion in the manual (Possible but doubtful). If you go into the passenger side footwell and look underneath the glovebox there are a LOAD of plugs in there. The one that sorted it for me was the green plug. I have no idea if this is IB1 and confused, or if it is indeed IB2 and it just happens to have fixed my issue lol. According to the wiring diagram the battery positive goes to the RAD no.1 fuse. From there it goes to relay no.2 (not sure which one this is as I didn't trace back that far, after that it's onto IB1 pin 8 and from there it goes directly to the stereo. Your issue is either the fuse, the relay, the plug not being connected or part of the wire itself is broken. Quote Link to comment Share on other sites More sharing options...
Scott Posted April 8, 2014 Author Share Posted April 8, 2014 Here are some screenshots of the manual if you don't have it.... As you can see from the pics, the green square plug in that area is IB2. I would definitely check the ACTUAL IB1 pin 8 first though Quote Link to comment Share on other sites More sharing options...
Scott Posted April 8, 2014 Author Share Posted April 8, 2014 Hmmm, I've just realised that this is the LHD car. With that in mind perhaps the one I plugged in was actually IB5 lmfao. Quote Link to comment Share on other sites More sharing options...
safcdixon Posted April 8, 2014 Share Posted April 8, 2014 Hmmm, I've just realised that this is the LHD car. With that in mind perhaps the one I plugged in was actually IB5 lmfao. Lol which ever one it was worked Il test the output on the rad1 fuse and go from there Quote Link to comment Share on other sites More sharing options...
Scott Posted April 8, 2014 Author Share Posted April 8, 2014 Lol which ever one it was worked Il test the output on the rad1 fuse and go from there I'm fairly certain the plug layout is still the same to be honest. With that I'm positive I plugged in IB2, it may have been IB1 at fault though... and a wee push in sorted it. Quote Link to comment Share on other sites More sharing options...
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