Rear wiper relay

Post by **mat_fenwick** » Sat Apr 28, 2012 6:03 pm

Anyone know where this is please? Switch checks out OK (and has been swapped) and motor runs when 12V feed is taken to it. So the relay is the next logical place to look. Haynes shows it as a 6 terminal relay, which I can't find!

Swapped a few possibles but still no wiper

rmattila · Post by **rmattila** » Sat Apr 28, 2012 7:48 pm

Don't know either (never bothered about the rear wipers), but if I did, I'd probably check the fuse box next. See that the correct fuse gets the voltage at the inlet terminal, and then take a spare box from the shelf and check where the outlet terminal connects to.

Post by **mat_fenwick** » Sat Apr 28, 2012 8:09 pm

Found it now, will add more later but off out now to weld before the rain arrives!

Post by **mat_fenwick** » Sat Apr 28, 2012 10:27 pm

The Haynes manual gives the location of the relay as behind the dashboard on the driver's side (thanks Jay!), but I did discover later that the earlier Haynes shows this but the later one doesn't (and guess which one I was looking at...)

I knew the fuse was OK, as the output from the switch was operating as it should.

Couldn't see any relays apart from the fan full speed relay on the driver's side, so I took off the clocks - nothing behind there either! So I traced the wiring and it led to a blue 6 terminal relay tucked between the glovebox and heater assembly. Substituting this with a known good relay didn't improve things, so I opened up the relay and manually moved the contacts. Success!

Checking each terminal in turn showed that all were correct apart from the earth for the coil. This turned out to be a connector not fully pushed into the earthing block by the steering column, that I removed when changing the heater tap

Still, easily fixed but a couple of hours to diagnose! Causing much grief from SWMBO, along the lines of "You're always working on that bloody car!" Now I'm in the doghouse...

toddao · Post by **toddao** » Sat Apr 28, 2012 10:51 pm

Mat said

Now I'm in the doghouse...

As long as you've got some wine in there and a comfy chair

( My wife said : sounds familiar, when I told her what your 'mission control' had said. They're entitled to their 'ideas'

)

Post by **mat_fenwick** » Sat Apr 28, 2012 10:59 pm

toddao wrote:As long as you've got some wine in there

How did you guess?! Slightly frosty atmosphere still, but improving

JayW · Post by **JayW** » Sat Apr 28, 2012 10:59 pm

mat_fenwick wrote:The Haynes manual gives the location of the relay as behind the dashboard on the driver's side (thanks Jay!)

Sorry, it didn't occur to me until after that all the Databook schematics are LHD

That earth block is a sodding pain in the arse!

Post by **mat_fenwick** » Sat Apr 28, 2012 11:05 pm

No worries mate, I would have expected them to be in the same place regardless...