now my td4 is playing up

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griff2

Active Member
Posts
694
Location
STAFFORD UK
Hi all

my td4 keeps blowing the windscreen wiper fuse as soon as i turn the ignintion on

is there a relay anywhere? or is it only the ccu thing that will cost ££££££££s

if it is the ccu thing can i repair it?

cheers
griff
 
it will not be the ecu or it would have blown that switch your wipers of before switching ignition off and see how it goes the wiper motor may be sticking some how and put extra pressure on the fuse, or you could have a chaffed wire to your wiper motor .
 
griff2 said:
Hi all

my td4 keeps blowing the windscreen wiper fuse as soon as i turn the ignintion on

is there a relay anywhere? or is it only the ccu thing that will cost ££££££££s

if it is the ccu thing can i repair it?

cheers
griff
Click to expand...


Ok looking at the circuit diagram, ist unlikely to be the CCU for the wipers.

First of all, is it the fuse for the front wipers?

If so, does it happen when te wipers are definitely all switched 'off'?

I've had occasion to repair the wiper linkage in a Freelander, and getting at the whole wiper motor and assembly is not hard.

Freelander wiper mechanisim change - Land Rover Technical Archive - LR4x4 - The Land Rover Forum

That should be your next port of call - remove the wipers and the panel covering them and unplug it. If the fuse still blows its some kind of loom issue probably. If not the wiper motor and/or the park switch has a short, and need replacing. These are not massively expensive things. Nor is it a hard job to do.

In fact you can get dozens of these as ex scrapper units for under £50 as complete units.
 
Yeh, Rave will have a circuit diagram. Look at the circuit diagram carefully though - sometimes completely unrelated things run off the same fuse.

There was a similar problem went through here recently where a guy's fuse marked as "starter motor" kept blowing. He swapped everything out on the starter curcuit - but there was a feed in the relay housing off the circuit to the O2 sensor relay and it was the O2 sensor blowing the Starter Motor fuse.
 
quickly had a play ,
slid hand in to where motor is,unplugged it then refitted a fuse

it did not blow with motor unplugged,so next time im off work i will wipe the motor out,take apart and see if its fixable

i had it in pieces mnths ago as park had gone tits up,maybe when i resealed it it has sprong a leak ,letting water in onto the electrics? or a wire worn
 
griff2 said:
quickly had a play ,
slid hand in to where motor is,unplugged it then refitted a fuse

it did not blow with motor unplugged,so next time im off work i will wipe the motor out,take apart and see if its fixable

i had it in pieces mnths ago as park had gone tits up,maybe when i resealed it it has sprong a leak ,letting water in onto the electrics? or a wire worn
Click to expand...

Reuslt!

As I said, its probly worth just replacing it anyway. damp won't cause a fuse to blow.
 
maybe a worn wire or something ,may as well have a look if fixable i may as well fix it ,seeing to replace it i will have to take the motor out in first place
 
griff2 said:
doh lol sorry thought it was the vid link lol try this one

double click pic,it should load the vid up ,it does on my pc
Click to expand...

That's because your PC has cookies that show you are logged into your private site.

That is not a publicly accessible video.
 
now i feel silly lol just changed my settings.


try now


i think maybe the spindle was either not sat correctly on the bottom bearing thing or the bearing was not sat flush,thus making the spindle spin on a angle maybe on the magnets and thats whats coursed the marks?
 
Last edited:
Mmm. I had another look at the vid and I reckon that was just how they balanced the armature.

Probably not your problem.

Check the brushes and the bearings and gear linkage

Motors can and do sometimes short windings to earth for no apparent reason.
 
Can't see much on the video, but your motor probably overheated when the park mechanism failed and the armature now has a short. Those 'scuffs' are from when the armature was balanced.

If you don't fancy a new one, why not get one from a scrapyard? I have used 1stchoice.co.uk before.
 
re alined the bottom bearing,rebuilt the motor and then tighened the screw on the end of the spindel once all back together ,now working better than new :)

i think it was out of line on the spindle ,which had coursed it to rub antill it rubbed so much it then could arc its self out on the casing,but now it cant so all working again

NO ££££s spent just 2 hrs of my time :)
 
griff2 said:
re alined the bottom bearing,rebuilt the motor and then tighened the screw on the end of the spindel once all back together ,now working better than new :)

i think it was out of line on the spindle ,which had coursed it to rub antill it rubbed so much it then could arc its self out on the casing,but now it cant so all working again

NO ££££s spent just 2 hrs of my time :)
Click to expand...

A stalled motor will always blow a fuse. No need for arcing.
Looks like you simply had it jammed up.

The scrapes on the armature outside are balancing stuff done in manufacture,., Ive visited a factory once that made motors. After winding they put the armature on a small version of a wheel balancing machine, but instead of clipping lead weights on, they grind a bit of the soft iron off.
 
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