slofut wrote:
In reply to a message from sparx sent Sun 7 Aug 2011:
Dave,
The reason I criticised the Haynes manual is because it
showed the supply from the fuse as a pink/wh wire (like you
said), in my car the supply wire to the switch is blk/grn,
couldn’t move the fuse block out far enough to see the
wiring on the back and I try not to tug too much on lucas
wiring as a rule.
Wise precaution, sir - but if it doesn’t stand it; remedial action is
required anyway…
‘Unfortunately’; the Haynes diagram does not show the colour change
after the fuse - nor does the Jaguar workshop manual’s diagram. The
correct colours are white/pink to the fuse (from the ign protection
relay) - and light green from the fuse to the switch…
As commented by Dave; the Haynes diagrams are just blown-up copies of
the Jag originals. And when using diagrams generally; some
circumspections are healthy - the diagrams are not 100% reliable. And
further, due to PO machinations odd connections may occur - adding that
in some areas; fading colours and lack of access may be deceptive…
In Jaguar wiring logic; black/something implies a connection through a
user to ground, but it is not entirely consistent - hence the need to
study the wiring diagrams closely. And for serious work; you need to
download the ‘S57’ diagram…
And honestly; not getting frustrated when working on car electrics
indicates that have as yet to delve deep enough…:))
Frank
xj6 85 Sov Europe (UK/NZ)>And no, I’m not getting a bit frustrated, actually perfectly
calm as it’s my play toy Jag and it’s mostly a pleasure to
work on it. And I’m smart enough to know when tools are at
fault, do you work for Haynes or something?
I do however very much appreciate your information. I’ll
have another look at the haynes, I certainly could have
overlooked something. I did see that supply was common with
the rear windscreen heater, off the ignition relay. What
threw me was no color indicated at the wiper switch harness,
it probably changes colors at the relay or the fuse. I tried
to check the terminal ends on the fuseblock but it looks to
have never been disturbed and rather than risk tugging the
fuse block out where I can get to the back (it’s pretty
tight) I’ll work back from the relay side. I need to find
the relay first…
The original message included these comments:
the manufacturer’s. Sounds like you’re getting a bit
frustrated and blaming the tools.
Thin(ish) white/pink and black wires go to the relay coil,
brown is the battery supply (from firewall stud?) and the
thick(ish) white/pink is the supply to the fuse.
Are you sure it’s not just a bad connection at the fuse
box?
Have you checked for voltage on the cable terminal rather
than just the fuse clips?
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