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Old 29-06-18, 08:43 PM   #1
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Default Peugeot 207 Windscreen Washer Pump Not Working

Hi,

I'm really hoping someone can help - I have a 207SW 1.6VTi (2010) and a few days ago the washer pump stopped working on both the front and rear, so after checking the number 3 fuse in the engine bay fuse box which was ok I bought a new washer pump.

So basically here's the sequence of what I've done;

1, fitted the new pump but it was totally dead.
2, then suspected the new pump may be faulty so removed the new pump and tested it on a lead from the battery and it worked fine.
3, then wondered if the old pump was ok after all, so also checked this by a lead from the battery but it was dead.
4, checked for voltage on the connector which joins the pump whilst operating the control stalk for the wash wipe both front and rear wash but found zero voltage.

So I don't know what to try next and I'm confused because if there's no voltage at the two pin connector which joins onto the pump I would have expected the old pump to have been ok but why would there be zero voltage on the terminal to the pump and also a blown pump...I would have expected one of the other but not both!

Any help on this would be really appreciated as I've now run out of ideas!
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Old 29-06-18, 10:28 PM   #2
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If the new pump and fuse are ok, then the only other things that could cause it are the wiring and the switch.

Check wiring to the pump for continuity.

Check if fuse actually has voltage across it with the ignition on. Fuse box failures are not uncommon in peugeots...

It is possible the old pump [which is dead] may have damaged the switch, or it just failed on it's own. If the other checks don't turn up anything, trace which wires from the switch activate the pump and bridge those out at the switch/loom connector and see if the pump functions. If it does, replace the unit or see if you can repair it.
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Old 29-06-18, 11:03 PM   #3
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Thanks for your reply and advise...just a couple of things I'm not sure about;

When testing if there is voltage at the fuse, should there be a constant voltage there when the ignition is turned on, or only when the wash wipe is activated? I'm not sure just how the circuit is wired as I can't find a wiring diagram.

Also as I understand, the current to the pump is reversed so that it can either direct water to the front or rear - is this done through the actual switch mechanism on the stalk or is there a relay involved that could possibly be faulty?
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Old 30-06-18, 03:17 AM   #4
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Normally the fuse would be live with the ignition on but don't have a specific wiring diagram for your car so couldn't be absolutely sure.
The switching will probably be done by the BSI. The pump will not have a great current draw so probably does not have a relay [will most likely be electronic switching]. Again, no specific wiring diagram so unsure.
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Old 07-07-18, 08:19 AM   #5
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Sorry if this is obvious. But, does your reservoir have any water in it?
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