12v 1uo941243c Relay repairable?

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  • bohaboha
    Badcaps Legend
    • Nov 2012
    • 1009
    • sweden

    #81
    Re: 12v 1uo941243c Relay repairable?

    Originally posted by redwire
    First you would troubleshoot and fix the blowing fuses problem, why are you now suspecting the relays? Look for the short circuits instead of wasting time here.
    thanks but after the fuse was blown I no longer have any power through so I can't find the source and then it would be good to know that those relays are working properly. what I understand from your post the relays have nothing to do with the fuse or am I wrong

    Comment

    • diif
      Badcaps Legend
      • Feb 2014
      • 6978
      • England

      #82
      Re: 12v 1uo941243c Relay repairable?

      Check the connector to the ECU that's behind the battery.

      Comment

      • bohaboha
        Badcaps Legend
        • Nov 2012
        • 1009
        • sweden

        #83
        Re: 12v 1uo941243c Relay repairable?

        Originally posted by diif
        Check the connector to the ECU that's behind the battery.
        The ECU on this car is located with the wiper motor I took out and it looks almost like new even inside. Don't you guys know how to test these multi pins. relay? Because with all the help that petehall347 has contributed I still have some relays that I don't know their purpose just because supposedly they handle multiple things at the same time

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        • petehall347
          Badcaps Legend
          • Jan 2015
          • 4427
          • United Kingdom

          #84
          Re: 12v 1uo941243c Relay repairable?

          i wouldn't be messing with all that stuff . instead i would be getting it running then see if anything isnt operating properly .
          did you fix the rpm sensor yet ?

          Comment

          • bohaboha
            Badcaps Legend
            • Nov 2012
            • 1009
            • sweden

            #85
            Re: 12v 1uo941243c Relay repairable?

            Originally posted by petehall347
            i wouldn't be messing with all that stuff . instead i would be getting it running then see if anything isnt operating properly .
            did you fix the rpm sensor yet ?
            it's right what you say but when I don't get power to the sensor and ignition coil and also not to the fuses 28,32and 34 which all have ignition to do then I go crazy

            Comment

            • diif
              Badcaps Legend
              • Feb 2014
              • 6978
              • England

              #86
              Re: 12v 1uo941243c Relay repairable?

              Originally posted by bohaboha
              The ECU on this car is located with the wiper motor I took out and it looks almost like new even inside. Don't you guys know how to test these multi pins. relay? Because with all the help that petehall347 has contributed I still have some relays that I don't know their purpose just because supposedly they handle multiple things at the same time
              That rules out the direct connection to the ECU but I don't think it's a relay causing your fuse to blow and three error codes.
              I think there is a large connector behind the battery check that.

              Comment

              • bohaboha
                Badcaps Legend
                • Nov 2012
                • 1009
                • sweden

                #87
                Re: 12v 1uo941243c Relay repairable?

                Originally posted by diif
                That rules out the direct connection to the ECU but I don't think it's a relay causing your fuse to blow and three error codes.
                I think there is a large connector behind the battery check that.
                they do not blow anymore now there is no more power flow and it 3fuses

                Comment

                • petehall347
                  Badcaps Legend
                  • Jan 2015
                  • 4427
                  • United Kingdom

                  #88
                  Re: 12v 1uo941243c Relay repairable?

                  f34 .. Y102 Intake manifold air control solenoid
                  f32, Y3 Injector
                  f28,, M12 Fuel pump
                  looking like a crushed or burnt loom somewhere . cant see those 3 being shorted at same time .
                  those fuses get power from K20 Fuel pump relay . so that is at least partly working and probably just fine . .

                  Comment

                  • bohaboha
                    Badcaps Legend
                    • Nov 2012
                    • 1009
                    • sweden

                    #89
                    Re: 12v 1uo941243c Relay repairable?

                    Originally posted by petehall347
                    f34 .. Y102 Intake manifold air control solenoid
                    f32, Y3 Injector
                    f28,, M12 Fuel pump
                    looking like a crushed or burnt loom somewhere . cant see those 3 being shorted at same time .
                    those fuses get power from K20 Fuel pump relay . so that is at least partly working and probably just fine . .
                    then maybe relay k20 not working properly which is 7 pins relay that i do not know how to test just to eliminate it. do you know how to test it

                    Comment

                    • petehall347
                      Badcaps Legend
                      • Jan 2015
                      • 4427
                      • United Kingdom

                      #90
                      Re: 12v 1uo941243c Relay repairable?

                      k20 will be fine .its providing power to the fuses that are blowing . somewhere i suspect there is a short inside the wiring loom . or the fuse box is somehow shorting to the chassis .

                      Comment

                      • sam_sam_sam
                        Badcaps Legend
                        • Jul 2011
                        • 6040
                        • USA

                        #91
                        Re: 12v 1uo941243c Relay repairable?

                        Look at the relay it should show up the pins are with numbers on it tell you what is common normally open normally closed and if has more than one set of contacts

                        I am not trying to be mean but you should know how to test a relay and what the symbols are for a relay because if you do not you are going to have a very hard time trying to get this car running again

                        By me saying that if you have all the skills that you need it difficult enough troubleshooting issues like this to being with in the first place so you have to get the minimum amount of skills first before you can even being to troubleshoot this issue

                        Like Peterhall347 said in the post above you are going to have to find out why this fuse is blowing before you even being to figure out why this is happening

                        And I can tell you that unless the relay is shorting to ground it is not going to be the relay however you need to make a test light jig so you power the output side of the relay to see where you do not have power anymore

                        The first thing I would do is unplug everything that is on that circuit that is blowing fuses ( then remove the fuse and use the test light jig ) and plug in one device at a time and when your test light is very bright then you more than likely have found part of your problem but you might have more than one problem

                        When you can put a fuse in that does not blow and you have power across the fuse then you have made progress on the issue at hand

                        I hope this helps you with your issue that you are having
                        Last edited by sam_sam_sam; 10-01-2022, 05:35 PM.

                        Comment

                        • petehall347
                          Badcaps Legend
                          • Jan 2015
                          • 4427
                          • United Kingdom

                          #92
                          Re: 12v 1uo941243c Relay repairable?

                          i do this work to put food inside me . its good to have the wiring diagram . mostly i have to work without . some things can be fixed in 5 minutes even after someone else tried for hours first and they are fully trained on the machine . . i know i keep doing it . saying that it has to be totally stock to fix quickly or it can be hours to put things back where they go and finding the original broken wire etc .

                          Comment

                          • bohaboha
                            Badcaps Legend
                            • Nov 2012
                            • 1009
                            • sweden

                            #93
                            Re: 12v 1uo941243c Relay repairable?

                            Originally posted by sam_sam_sam
                            Look at the relay it should show up the pins are with numbers on it tell you what is common normally open normally closed and if has more than one set of contacts

                            I am not trying to be mean but you should know how to test a relay and what the symbols are for a relay because if you do not you are going to have a very hard time trying to get this car running again

                            By me saying that if you have all the skills that you need it difficult enough troubleshooting issues like this to being with in the first place so you have to get the minimum amount of skills first before you can even being to troubleshoot this issue

                            Like Peterhall347 said in the post above you are going to have to find out why this fuse is blowing before you even being to figure out why this is happening
                            it's the 3 from the right on picture 2 on post 79 maybe you can figure something out to tip me off thanks

                            Comment

                            • bohaboha
                              Badcaps Legend
                              • Nov 2012
                              • 1009
                              • sweden

                              #94
                              Re: 12v 1uo941243c Relay repairable?

                              Originally posted by petehall347
                              k20 will be fine .its providing power to the fuses that are blowing . somewhere i suspect there is a short inside the wiring loom . or the fuse box is somehow shorting to the chassis .
                              they are not blowing anymore because no power to them

                              Comment

                              • sam_sam_sam
                                Badcaps Legend
                                • Jul 2011
                                • 6040
                                • USA

                                #95
                                Re: 12v 1uo941243c Relay repairable?

                                PN = negative side
                                50 Z = is your control power
                                50 A = is your positive side
                                Last edited by sam_sam_sam; 10-01-2022, 05:42 PM.

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                                • petehall347
                                  Badcaps Legend
                                  • Jan 2015
                                  • 4427
                                  • United Kingdom

                                  #96
                                  Re: 12v 1uo941243c Relay repairable?

                                  ok so the 50 amp is blown . f5 .. or k20 missing .

                                  Comment

                                  • bohaboha
                                    Badcaps Legend
                                    • Nov 2012
                                    • 1009
                                    • sweden

                                    #97
                                    Re: 12v 1uo941243c Relay repairable?

                                    Originally posted by petehall347
                                    k20 will be fine .its providing power to the fuses that are blowing . somewhere i suspect there is a short inside the wiring loom . or the fuse box is somehow shorting to the chassis .
                                    then why only those 3 fuses if the box is shorting to the chassis? note fuses are not blowing they get no power

                                    Comment

                                    • sam_sam_sam
                                      Badcaps Legend
                                      • Jul 2011
                                      • 6040
                                      • USA

                                      #98
                                      Re: 12v 1uo941243c Relay repairable?

                                      You got a serious issue if you blew a 50 amp fuse

                                      Comment

                                      • sam_sam_sam
                                        Badcaps Legend
                                        • Jul 2011
                                        • 6040
                                        • USA

                                        #99
                                        Re: 12v 1uo941243c Relay repairable?

                                        Originally posted by bohaboha
                                        then why only those 3 fuses if the box is shorting to the chassis? note fuses are not blowing they get no power
                                        Because you have to go back to where those fuses get power from this a common practice to have a high amp fuse then have smaller fuses down steam

                                        Like I said earlier you need to have basic troubleshooting skills to able to do this troubleshooting

                                        One note if this power is going through a relay there is a possibility that the contacts could be damaged because of the short that you seem to have
                                        Last edited by sam_sam_sam; 10-01-2022, 05:49 PM.

                                        Comment

                                        • bohaboha
                                          Badcaps Legend
                                          • Nov 2012
                                          • 1009
                                          • sweden

                                          #100
                                          Re: 12v 1uo941243c Relay repairable?

                                          Originally posted by petehall347
                                          ok so the 50 amp is blown . f5 .. or k20 missing .
                                          where are those high amps fuses location d int se any this week realy funny

                                          Comment

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