12v 1uo941243c Relay repairable?

[diif]

Re: 12v 1uo941243c Relay repairable?

Your blown fuse and 3 error codes point to the ECU or it's wiring.

[sam_sam_sam]

Re: 12v 1uo941243c Relay repairable?

On some cars there is camshaft sensor and a crankshaft sensor and they give you the same exact error code for both at least this is the case with the car that I have so do not over look this when I get this code I change both of them

One note some times it can be the wiring harness plug that can give you a bad headache if it has a bad connection in the plug as well and it can be hard to detect and determine if this is your issue or not

On note about a fuse that blows as soon as you apply power to it you need to find out what is causing this issue use the incandescent light bulb ( or a test light ) instead of the fuse to see if it is a direct short or not you will need a wiring diagram for this car to be able to know all of what is on this circuit

I have a pickup truck that has an issue when you leave the truck sitting for a couple of weeks and go to start it the battery is completely dead no power what so ever I going to have to figure out what the issue is but two things come to mind first one is the radio and the second one is the alternator bad diodes in it and Ford alternator are the worst for this issue I have had this issue several times in the past

A few years ago I had issues with the charging system on this truck and it was one of the pins in the wiring harness to the alternator that was near the battery that was the issue that time I had to bypass this pin connection in the wiring harness and put a inline fuse on it

But this is where a wiring diagram comes in very handy to help you figure out what could be the problem in a given circuit you can troubleshoot it with out a wiring diagram but it takes a lot longer to do

Here is a case in point I once worked on a car that all of the dashboard lights were on the charging system was not working at all and it turns out to be a wire that goes from the alternator to the dashboard underneath the radiator and had burned it self apart due to a short circuit on the heater for the choke on the carburetor but I was lucky enough that it had a wiring diagram that was available on line helped a lot for this issue

I hope this helps you with your problems with your car

[bohaboha]

Re: 12v 1uo941243c Relay repairable?

I think this car is totalled?

lol no not at all just a little patience and you get out of the misery thanks to petehall347 help

[redwire]

Re: 12v 1uo941243c Relay repairable?

I think this car is totalled?

[bohaboha]

Re: 12v 1uo941243c Relay repairable?

P0725 rpm sensor also known as crank sensor . this will prevent engine starting .
don't worry about transmission codes yet

Hello again I have not made any progress because there is a fuse that destroys all the time it is no: 29 on the fuse plate and I do not know to which relay it belongs the schematic on post 47 that you posted differs a little from my plate. can you
or do you have the schematic of the fuse plate?

[bohaboha]

Re: 12v 1uo941243c Relay repairable?

P0725 rpm sensor also known as crank sensor . this will prevent engine starting .
don't worry about transmission codes yet

thank you i´ll start with that one

[petehall347]

Re: 12v 1uo941243c Relay repairable?

P0725 rpm sensor also known as crank sensor . this will prevent engine starting .
don't worry about transmission codes yet

[bohaboha]

Re: 12v 1uo941243c Relay repairable?

not just the sensor - clean the flywheel or whatever it is sensing.
i know on some old cars if you got lots of mud on the toothed wheel it couldnt sense it

sure will clean around and all sensors

[bohaboha]

Re: 12v 1uo941243c Relay repairable?

plenty of electronics involved . if you look at live data on your scan tool it should have rpm .. or maybe not depending on the scan tool . also if you have an an oscilloscope you can check the waveform directly from the sensor . will tell you a story about this .i was called out to a job the experts couldn't fix i hooked up my bench oscilloscope and the car started up .after that it started every time .not saying this will work for you but you can see if sensor is working ok before checking the wiring ,

your comment confirms to me that this sensor is causing krank no start for the car and we are still talking about codes: P0725,P1780 and P1850 all are linked to gearbox and speed? i will test, clean and hope it will start

[stj]

Re: 12v 1uo941243c Relay repairable?

not just the sensor - clean the flywheel or whatever it is sensing.
i know on some old cars if you got lots of mud on the toothed wheel it couldnt sense it

[petehall347]

Re: 12v 1uo941243c Relay repairable?

plenty of electronics involved . if you look at live data on your scan tool it should have rpm .. or maybe not depending on the scan tool . also if you have an an oscilloscope you can check the waveform directly from the sensor . will tell you a story about this .i was called out to a job the experts couldn't fix i hooked up my bench oscilloscope and the car started up .after that it started every time .not saying this will work for you but you can see if sensor is working ok before checking the wiring ,

[bohaboha]

Re: 12v 1uo941243c Relay repairable?

P0725 rpm sensor circuit . P07255 not found please check code .
thinking the crank sensor wire breaks right next to sensor .also failing battery will cause problems starting

P1780 not found
P1850 not found
autodata hasn't got transmission codes .
clear all codes and see what comes back

i have cleared three four times the codes but they keep coming back and the car still cranks but does not start maybe i should try to find this sensor and clean and test to see what it gives . petehall347 i appreciate and thank you for your support and wonder if i can pm you because i think we are off electronics topic on this thread

[petehall347]

Re: 12v 1uo941243c Relay repairable?

P0725 rpm sensor circuit . P07255 not found please check code .
thinking the crank sensor wire breaks right next to sensor .also failing battery will cause problems starting

P1780 not found
P1850 not found
autodata hasn't got transmission codes .
clear all codes and see what comes back

[bohaboha]

Re: 12v 1uo941243c Relay repairable?

what codes are coming up on your scan tool ?

Hello again the codes I get: P07255,P1780 and P1850 and they have to do with the gearbox and speed, or can this affect the car cranking but not starting?

[bohaboha]

Re: 12v 1uo941243c Relay repairable?

what codes are coming up on your scan tool ?

hey you'll get the answer a little later today a friend is borrowing a code reader waiting for him

[petehall347]

Re: 12v 1uo941243c Relay repairable?

what codes are coming up on your scan tool ?

[bohaboha]

Re: 12v 1uo941243c Relay repairable?

hoping this works i didn't check if it converted properly .

thank you so much for your help. will look further but wondering is it for fuel pump? because i see no specification

[petehall347]

Re: 12v 1uo941243c Relay repairable?

hoping this works i didn't check if it converted properly .

[petehall347]

Re: 12v 1uo941243c Relay repairable?

i have it but can only save as xps and it looks like this website cant deal with it .. will have to learn how i can change it . ah will put on stick and plug into linux pc .. autodata is on my windows work laptop .

[bohaboha]

Re: 12v 1uo941243c Relay repairable?

hope pics are good enough i couldn't get print screen to work properly so used camera .

Thank you very much, will it fit my car? because as you see on my plate i have some relays more exactly 4 which contains 2 integrated dual relays like number 455,389 which are clear but then 175 and the one which is between 100 and 409 this makes it difficult and follow your pictures but the pictures themselves they are ok. do you have possibly schematic to fuel pump on your autodata?