I've got two problems with my citroen saxo wipers. First: my interval
does not seem to work at all. The other speeds seem to work ok, even the
tap speed works ok. Second problem is that the wipers do not return to
their normal position at the bottom of the windscreen but insead they
immediately stop when I turn oof the wiperswitch. I already tried a new
wiper motor and a new wiper switch without any effect. I did not mange
to find the relais to replace this? Anyway could the problem be due to a
defect wiper relais, if so where can I find this one (what color) in a
citroen saxo 1997. Besides interval malfunction will a new wiperrelais
fix the second problem? Thank is advance. Help is much appriciated!!
This sounds like a break in the wiring to the self-park contact on the
wiper motor. I don't know exactly how the interval wipe is implemented
in the Saxo, but the traditional way is to have the wiper motor supplied
through a contact in the housing which switches off (opens) at a 'park'
position. If you have the main wiper switch on, this is bypassed and the
motor just keeps going - if you have switched off the main switch since
the last cycle, the motor keeps running through the 'park' contact until
it opens in the 'parked' position, then stops.
The interval-wipe uses a relay which bridges the 'park' contacts briefly
- just enough to get the motor moving so the contacts are made again -
then drops out for the interval - say 5 seconds. During that time the
wiper will complete one cycle, but by the time it gets back to the
'park' position, the relay has timed-out and there is no supply, so it
stops as if you had switched off the main switch. A few seconds later,
it all happens again for one more sweep.
If the wire to the 'park' contact is disconnected somewhere, none of the
self-parking or interval stuff will work, but the main switch will still
supply current to the motor directly whenever it's on - but of course
that stops immediately you switch it off, and so does the motor,
wherever it is at the time.
Hope this helps
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.