Green200tdi Posted June 29, 2019 Share Posted June 29, 2019 Any idea what the fuse Is? (Empty space) it keeps blowing have you got a list of what each fuse does? 2005 loom td5 thank you 😊 Quote Link to comment Share on other sites More sharing options...
MR-HIPPO Posted June 29, 2019 Share Posted June 29, 2019 (edited) And another link to the Electrical reference library The info you require is in section 2.3 & 2.4 (Pages 16 to 21) Edited June 29, 2019 by MR-HIPPO Quote Link to comment Share on other sites More sharing options...
Green200tdi Posted June 29, 2019 Author Share Posted June 29, 2019 That would make sense as I’m playing with black and red transducer wire🤔 so on to the problem now why is the speedo not working? why has my fuel gauge hit Full when there’s only £30 worth of fuel in the tank ive got all the permanent lives and ignition live, where the hell am I going wrong🙄 Quote Link to comment Share on other sites More sharing options...
western Posted June 29, 2019 Share Posted June 29, 2019 Have you got the transducer wires in the correct location in the transducer plug? Pin 1 nearest transfer box Pin2 centre Pin 3 rear This is how mine 8s connected, black/red goes to top pink plug on back of speedo. Quote Link to comment Share on other sites More sharing options...
Green200tdi Posted June 29, 2019 Author Share Posted June 29, 2019 Yes been under and checked it’s live, looking at rear of plug while on transducer left power middle earth right signal signal wire goes to black / red wire of gray plug under bonnet but I still think it’s a problem with fuel gauge as that’s gone too Full, Quote Link to comment Share on other sites More sharing options...
MR-HIPPO Posted June 29, 2019 Share Posted June 29, 2019 From that fuse diagram, Fuse 12 is either: ECM: If you loom came from a TD5 vehicle. Speed Transducer: If your ;loom came from a 300TDI vehicle. In both cases the wire is White/Green (this would be a switched live.) TD5 loom: This wire runs to the pin 33 in the large black plug for the ECM beneath the passenger seat (c0658 in the electrical library) 300TDI loom, this wire would run to pin 13 in the Grey Main loom to Engine loo plug. on the front of the bulkhead (c0448) in the electrical library) I really think that you are now at a point where you will need to reference the electrical library (that you got from the above link), and the electrical circuit diagrams The two documents are meant to be used along side each other, these have been the source of all of the information that I have given you so far. You are now the only person that knows what wire you have cut / joined /connected to what / where in order to get the TD5? main loom connected to your Vehicle/ Engine / Gearbox. The documents can seem a little confusing at first, but are not that complicated once you understand how they work, all of the various plugs / connectors are numbered on the circuit diagrams, and these numbers can be searched for in both documents. Quote Link to comment Share on other sites More sharing options...
MR-HIPPO Posted June 29, 2019 Share Posted June 29, 2019 Just a thought, I think in a previous post somewhere in another topic, I pointed out that white/Green could be used as a switched live, and you said that you thought it was for the oil light, You have not connected the white/Green from the main loom to Engine loom plug (c0448) to your oil light switch at the engine have you? This would certainly blow fuse 12 when you turned the ignition on? Quote Link to comment Share on other sites More sharing options...
Green200tdi Posted June 29, 2019 Author Share Posted June 29, 2019 Thank you, all was well gauge was working fine when I finally connected the rear loom to the rear lights and fuel tank was really happy then last week the engine gearboxes all went back in went for a spin all was well, my next step was to connect transducer to speedo got my live and earth last thing was finding the black/red with your and others help it was found on grey plug at bulkhead so I connected that all should be working now but something not right now why? Who knows my money is on something to do with fuel gauge, or dead speedo 😢 Quote Link to comment Share on other sites More sharing options...
Green200tdi Posted June 29, 2019 Author Share Posted June 29, 2019 1 minute ago, MR-HIPPO said: Just a thought, I think in a previous post somewhere in another topic, I pointed out that white/Green could be used as a switched live, and you said that you thought it was for the oil light, You have not connected the white/Green from the main loom to Engine loom plug (c0448) to your oil light switch at the engine have you? This would certainly blow fuse 12 when you turned the ignition on? No the green white was water temp sender unit, fuse is ok now Quote Link to comment Share on other sites More sharing options...
MR-HIPPO Posted June 29, 2019 Share Posted June 29, 2019 Thought that was a bit of a long shot. What was the problem? Quote Link to comment Share on other sites More sharing options...
Green200tdi Posted June 29, 2019 Author Share Posted June 29, 2019 I’ve just unplugged both the wires on the fuel tank and still the gauge remains full, im no convinced it’s a speedo problem as when you unplug either of the pink plugs on the speedo head fuel gauge goes down Quote Link to comment Share on other sites More sharing options...
western Posted June 29, 2019 Share Posted June 29, 2019 Just wire the fuel gauge wire direct from sender to back of fuel gauge, it wil work fine, that's how mine is done, do the same for the low fuel light as well. Quote Link to comment Share on other sites More sharing options...
MR-HIPPO Posted June 29, 2019 Share Posted June 29, 2019 (edited) Open the wiring diagram linked above. Click Instrumentation in the menu pane, you can see the fuel gauge wiring at the top of the first page that opens. I suspect that you have managed to earth the Green/Black that should run to the sender unit. Have you altered the wires in the short TD5 instrument loom? IF NO: With the fuel tank sender unplugged. Disconnect the dash loom plug from the main harness plug (c1040) test and see it the green/Black from pin 5 of (c1040) main loom side of the plug, has continuity to earth, If it does this is your problem. IF YES: On the instruments diagram, there is a short Light Green/Black that runs from one of the pink plugs on the back of the speedo (c1061 pin-7) to the plug on the back of the fuel gauge (c1054 pin-2). I think managing to earth this would also give you a "full tank" There is also a White/Orange that runs from the same pink speedo plug (c1061 pin-1) to one of the grey warning light panel plugs (co233 pin-3) if this is earthed I think it would also cause the problem. It is hard to give an accurate diagnosis without knowing what has been altered on your looms. Note: I am not an auto electrician, I am just doing my best to help with the information that I have available to me. The only knowledge I have of TD5 vehicle wiring is from looking at the Wiring diagram & reference library. I did fit a TD5 binnacle into my 200TDI, so I guess that counts for something. 😀 Edited June 29, 2019 by MR-HIPPO Quote Link to comment Share on other sites More sharing options...
Green200tdi Posted June 29, 2019 Author Share Posted June 29, 2019 I’ve just unplugged both the wires on the fuel tank and still the gauge remains full, im no convinced it’s a speedo problem as when you unplug either of the pink plugs on the speedo head fuel gauge goes down tbh Ralph I don’t want to alter the new td5 loom as it’s perfect no cuts black tape connected wires that’s what happens with original loom turned in to a fire hazard in the end was glad to get rid of old loom, i think your right mr hippo something somewhere has earthed out just got to find it now Quote Link to comment Share on other sites More sharing options...
MR-HIPPO Posted June 29, 2019 Share Posted June 29, 2019 (edited) 52 minutes ago, Green200tdi said: ............when you unplug either of the pink plugs on the speedo head fuel gauge goes down ............. Lets start from there then. The two pink plugs are c1060 & c1061. (Shown in Library and circuit diagrams) The Fuel Gauge has 3 wires, power earth & the wire to the sender. unplugging c1061 disconnects the wire to the sender. (Gauge drops to empty) this shows us that the other two wires on the gauge are correctly wired, (power and earth). It also proves that the short / problem is not in the short light green/black wire, as this is still plugged to the gauge, but disconnected from the speedo head. Every thing here seems to be working correctly, and pulling this plug will always cause the fuel gauge to read zero. You should do the 1st test from my above post, that will help to narrow things down. Also with pink plug c1061 unplugged, ( & tank sender disconnected) check the green/black there (pin-3) to see if that has continuity to earth as well, that will narrow thing down a little farther. At this point my money is on the Green/black. Edited June 29, 2019 by MR-HIPPO Quote Link to comment Share on other sites More sharing options...
Green200tdi Posted June 29, 2019 Author Share Posted June 29, 2019 👍 tomorrow is another day 🙄😂 thank you Quote Link to comment Share on other sites More sharing options...
western Posted June 29, 2019 Share Posted June 29, 2019 make sure you have not got the fuel sender to gauge wire & the sender to low fuel light on the wrong sender terminals, the ridged stud in centre of sender plate is the earth, if these are correct, the fault lies at the instrument pack end. the fuel gauge circuit in my speedo doesn't work so thats why I had to go direct to the fuel gauge. Quote Link to comment Share on other sites More sharing options...
Green200tdi Posted July 4, 2019 Author Share Posted July 4, 2019 On 6/29/2019 at 9:26 PM, western said: make sure you have not got the fuel sender to gauge wire & the sender to low fuel light on the wrong sender terminals, the ridged stud in centre of sender plate is the earth, if these are correct, the fault lies at the instrument pack end. the fuel gauge circuit in my speedo doesn't work so thats why I had to go direct to the fuel gauge. Ralph as you know I got a td5 loom and it all just plunged in now when I put the loom in and when it was on the wall working perfect put it on 110 wired up rear loom all was well showed me I had just over quarter of a tank I’m sure I pushed home one of the pink plugs and that’s when my troubles started I’ve removed all wires from tank still on full then I removed gray plug under the bonnet stayed on full checked earth to bulkhead that’s fine it’s getting to much earth by looks of it even removed the plug off the transducer I’m sure it’s speedo related Quote Link to comment Share on other sites More sharing options...
western Posted July 4, 2019 Share Posted July 4, 2019 maybe you've pushed in one of the speedo socket pins. or the fuel gauge damper circuit is dead & causing the problem. Quote Link to comment Share on other sites More sharing options...
MR-HIPPO Posted July 4, 2019 Share Posted July 4, 2019 Have you tried the tests that I outlined above? They will test/eliminate the rest of the wiring outside of the speedo head. If those tests do not find the problem, then with pink plug (c1061) unplugged from theback of the speedo,, and the tank sender plugged in, connect a wire between pin 3 Green/Black, and pin 7 Light green/Black on pink plug (c1061) this will complete the fuel sender circuit while bypassing the speedo head circuitry as per westerns suggestion above. Depending on what your fuel gauge now reads (ignition on), this will prove / disprove that the speedo is the problem. Quote Link to comment Share on other sites More sharing options...
Green200tdi Posted July 5, 2019 Author Share Posted July 5, 2019 12 hours ago, western said: maybe you've pushed in one of the speedo socket pins. or the fuel gaugedamper circuit is dead & causing the problem. That’s what I’m thinking 🤔 might have to send it to your friend on here Quote Link to comment Share on other sites More sharing options...
Green200tdi Posted July 5, 2019 Author Share Posted July 5, 2019 11 hours ago, MR-HIPPO said: Have you tried the tests that I outlined above? They will test/eliminate the rest of the wiring outside of the speedo head. If those tests do not find the problem, then with pink plug (c1061) unplugged from theback of the speedo,, and the tank sender plugged in, connect a wire between pin 3 Green/Black, and pin 7 Light green/Black on pink plug (c1061) this will complete the fuel sender circuit while bypassing the speedo head circuitry as per westerns suggestion above. Depending on what your fuel gauge now reads (ignition on), this will prove / disprove that the speedo is the problem. No not yet been busy this week with work and what have you but the weekend is apon us 😂 Quote Link to comment Share on other sites More sharing options...
Green200tdi Posted July 5, 2019 Author Share Posted July 5, 2019 Quick bypass on the pink fuel gauge plug and it’s now back to normal so head problem I’m guessing so far 1 Quote Link to comment Share on other sites More sharing options...
western Posted July 5, 2019 Share Posted July 5, 2019 Just wire the gauge direct, the damper circuit just stop the needle moving about, but mine is OK, needle doesn't wave around. Quote Link to comment Share on other sites More sharing options...
Green200tdi Posted July 5, 2019 Author Share Posted July 5, 2019 2 minutes ago, western said: Just wire the gauge direct, the damper circuit just stop the needle moving about, but mine is OK, needle doesn't wave around. Have bridged fuel gauge for now least I’ll know how much fuel I have and I’ll send speedo to c/ rabbit next week some time 1 Quote Link to comment Share on other sites More sharing options...
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