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Post by JohnC on Jan 3, 2017 13:20:29 GMT
A little help please. I took the old girl for a run just after Christmas (most enjoyable), unfortunately the rear screen misted up due to the very low temperature. I checked the supply to the switch which was good, 12v. My fear is that having had both screen rubbers replaced a few years ago and the headlining and seats recovered the screen connections may be broken. I need some help in locating the route of the cables to the rear screen and the point at which the cables connect to the element, before I start to pull everything apart (picture would be nice). I am trying to use my 68 P5b all year round therefore a working heated rear screen would be of use rather than leaving the quarter lights open.
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Post by johnwp5bcoupe on Jan 3, 2017 14:38:24 GMT
A 68 should have the fine wire elements and the connectors are at the top of the screen centre, the terminals are very brittle often broken off if not careful when removing the old seal  |
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Post by JohnC on Jan 4, 2017 8:17:32 GMT
Thanks John for your advice. I will start pocking around with my fingers crossed.
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Post by JohnC on Dec 22, 2019 15:41:06 GMT
Well here I am again. Two years on and still no heated rear screen. Body work and auto box took priority. I have lifted the o/s/r seat to expose the wiring to the rear heater. I have found a cluster of wires, Black (earth) and a Brown and yellow (supply). not connected but close to the cluster is a single cable, not coloured, that runs under both rear seats and up the n/s/r post. Could this be the supply cable for the heated rear screen? If so this could be a quick fix. Any thoughts.
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Post by johnwp5bcoupe on Dec 22, 2019 16:58:36 GMT
Well here I am again. Two years on and still no heated rear screen. Body work and auto box took priority. I have lifted the o/s/r seat to expose the wiring to the rear heater. I have found a cluster of wires, Black (earth) and a Brown and yellow (supply). not connected but close to the cluster is a single cable, not coloured, that runs under both rear seats and up the n/s/r post. Could this be the supply cable for the heated rear screen? If so this could be a quick fix. Any thoughts. Hi John the Brown and Yellow go to the heater motor with the Black which is earth, the single wire BN and W sound ok if its a fine wire demister? Should have said B & W  |
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Post by JohnC on Dec 22, 2019 17:18:07 GMT
Thanks John, do you think that plugging in my single wire into the brown and yellow connector give me a supply to the rear window?
A wiring diagram would be useful, am I right in saying that members can have access to a diagram? |
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Post by johnwp5bcoupe on Dec 22, 2019 18:48:09 GMT
Check your email John |
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Post by Sam Bee on Dec 22, 2019 19:03:31 GMT
Brown/ yellow wire goes to the rear screen heater. It is usually run separately to the rear loom as it was an optional extra.
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Post by johnwp5bcoupe on Dec 23, 2019 8:58:09 GMT
Brown/ yellow wire goes to the rear screen heater. It is usually run separately to the rear loom as it was an optional extra. According to the ever right Wiring Diagram  its a Black and White feed to the "Heated Backlight" this is transformed from Brown and Yellow through a Bullet connector |
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Post by Sam Bee on Dec 23, 2019 20:06:49 GMT
Well my Brown / Yellow connects directly to the screen heat tag.
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Post by johnwp5bcoupe on Dec 23, 2019 20:59:43 GMT
Well my Brown / Yellow connects directly to the screen heat tag. I am sure your right Sam there are loads of discrepancies throughout the WS manual |
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Post by barryr on Dec 24, 2019 0:08:38 GMT
So does mine!
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monsieurboz
Rover Rookie
Now an owner of a gleaming green LHD P5b.
Posts: 12
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Post by monsieurboz on Oct 7, 2020 12:25:51 GMT
Hi there, just coming to terms with p5b ownership... My workshop manual arrived today. Skimming through it I can find no reference to a heated rear screen, although there is one fitted. Questions:
Is it standard or optional?
Where is the switch? My lower console has two pull switches, one of which is for fog lights and the other may be for demister, but there’s another click switch (seemingly after market).
My car is 1968 LHD no. 46 off the line😁
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Post by Phil Nottingham on Oct 7, 2020 13:21:14 GMT
The heated RS was an optional extra and apart from reference in the wiring diagram that is it. There should be only one pull switch + cig lighter as standard + and extra pull switch with a white telltale in its knob on the lower console. All the wiring and switch was fitted on if HRS was ordered
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its a Black and White feed to the "Heated Backlight" this is transformed from Brown and Yellow through a Bullet connector 
