Front wiper/reverse light 15A fuse on 1989 200TDI

NA1961 · Jan 23, 2021

Please can anyone help with this strange fault.
Fuse 9 on my LR90 feeds the front wipers and reverse light.
However with with fuse 9 removed there is still 12v on the circuit and the wipers and reverse light work with the ignition off!
If I put a new 15A fuse in the wipers and reverse light work as normal but the fuse blows when I turn the ignition off!
Any ideas - this is a strange one?

lynall · Jan 23, 2021

Heated rear screen got a relay?
Anything else on that fuse that needs to stay on with ign off, alarm/clock/cig lighter etc?

Worth a search on here or google for 200 wiring diagram.

NA1961 · Jan 23, 2021

lynall said:
Heated rear screen got a relay?
Anything else on that fuse that needs to stay on with ign off, alarm/clock/cig lighter etc?

Worth a search on here or google for 200 wiring diagram.

Hi Lynall thanks for response I will check the relays to see if they are feeding anything back into the system but as far as I can see from the wiring diagram, it is only the front wipers and the reverse light on that fuse.
(Although it is weird that with the ignition on, I can turn the heated rear window and if I take each fuse out in turn, the heated rear window does not turn off!)

tottot · Jan 23, 2021

Be very careful with uping a fuse rating, a mate did this to get his wipers working and a meltdown resulted, took me a day to sort the mess.
His problem was a partially seized wiper drive over loading the system.
I recon Lynall is on to your problem with some sort of feed back to the wiper switch.
The heated rear window should go off with the ignition, as well as the relay the window runs through the voltage sensitive switch which cuts the power to the relay when ign is off.

Cavey_P38 · Jan 23, 2021

Are you sure that is the wiper fuse, mine is top row 4th one along and is a 15a

mine kept blowing fuses and it was combination of wiper cable stuck in tubes and a gummed up wiper motor and stuck brushes.

NA1961 · Jan 23, 2021

Cavey_P38 said:
Are you sure that is the wiper fuse, mine is top row 4th one along and is a 15a

mine kept blowing fuses and it was combination of wiper cable stuck in tubes and a gummed up wiper motor and stuck brushes.

Thanks all - will have another go at it tomorrow - so much different to the house electrics that I'm qualified to work on!!

Front wiper/reverse light 15A fuse on 1989 200TDI

NA1961

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lynall

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tottot

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Cavey_P38

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NA1961

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