Wash wipe fuse blowing tedium
Discussion
Trying to fix the above in order to pass an MOT, its the fuse shared by the wash/wipe, mirror adjusters and radio.
When the wash/wipe button is pressed, just before the fuse blows, there is a click from the passenger foot well, don't know if that's significant as one would normally use the wash wipe with the engine ruining so wouldn't notice it.
Researching this problem the most common solution mentioned was the wiper park switch, which I have replaced but did not resolve the problem.
The steering wheel switch itself is working ok and the wiper park switch is new, so what else could it be?
When the wash/wipe button is pressed, just before the fuse blows, there is a click from the passenger foot well, don't know if that's significant as one would normally use the wash wipe with the engine ruining so wouldn't notice it.
Researching this problem the most common solution mentioned was the wiper park switch, which I have replaced but did not resolve the problem.
The steering wheel switch itself is working ok and the wiper park switch is new, so what else could it be?
sonnylad said:
Above the passenger footwell there is a wiper control unit tucked away, but could also be the wiper park switch on the wiper motor.
Russ
The wiper park switch I know about as I have replaced it, but the wiper control unit, is that under the bonnet near the wiper motor itself or in the cockpit under the dash?Russ
I had Two dealers spend hours trying to resolve this issue for me, to no avail.
One eventually found that the mirror wiring was wet/low in the passenger door & replaced all that.
I think that helped for a week or so, before it started blowing again.
In the end, I just replaced the fuse for a higher one.... 30A to 40A from memory. Not the perfect way to do it by the book, but saves me spending Hundreds more Pounds, while experts feck about with it, until their heart's content.
One eventually found that the mirror wiring was wet/low in the passenger door & replaced all that.
I think that helped for a week or so, before it started blowing again.
In the end, I just replaced the fuse for a higher one.... 30A to 40A from memory. Not the perfect way to do it by the book, but saves me spending Hundreds more Pounds, while experts feck about with it, until their heart's content.
Have you seen this thread? http://www.pistonheads.com/gassing/topic.asp?h=0&a...
Hopefully it provides something to look at. To me if the fuse is popping it has to be on the power side of the circuit - unlikely to be the ribbon cable.
Hopefully it provides something to look at. To me if the fuse is popping it has to be on the power side of the circuit - unlikely to be the ribbon cable.
Just read this thread, if the fuse is blowing there is a low resistance short on the output side of the wiper switching unit, it is not the ribbon cable upstream of this on the control side.
I'd strongly recommend not increasing the fuse capacity, the photo is my switching unit after a few minutes of high current from a stiff wiper motor and this fault did not blow the 20A fuse. The real trouble here is track on the circuit board is 0.1" wide which is only good for 12.5A with a 30 deg C temperature rise!
I'd strongly recommend not increasing the fuse capacity, the photo is my switching unit after a few minutes of high current from a stiff wiper motor and this fault did not blow the 20A fuse. The real trouble here is track on the circuit board is 0.1" wide which is only good for 12.5A with a 30 deg C temperature rise!
Steve_T said:
Have you seen this thread? http://www.pistonheads.com/gassing/topic.asp?h=0&a...
Hopefully it provides something to look at. To me if the fuse is popping it has to be on the power side of the circuit - unlikely to be the ribbon cable.
Definitely on the right track Steve! Hopefully it provides something to look at. To me if the fuse is popping it has to be on the power side of the circuit - unlikely to be the ribbon cable.
Everything downstream of the wiper motor itself is working, have checked with a meter the plastic connector with it disconnected from the Wiper motor and getting 12 volts when the wiper button pressed, getting the washer working when the wash/wipe button pressed, so the problem is within the motor itself, although connecting a 12 volt supply directly to the motor is does run, but not particularly fast, so may well be that its drawing a lot of amps, so will try opening it up and see if I see what the problem is.
Is there any way it can be sperarated from the rod that actuates the wipers?
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