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NoFuel



Member Since: 19 Jun 2018
Location: Pirkkala
Posts: 6
Finland 2003 Defender 110 Td5 CSW Keswick Green
defender 110 td5 2003 major electrical problems.
Hi.

I have problems with electrics.

After carwash heater blower and wipers stopped working, after that abs, traction control and dash lights went off.

If I adjust heater fan speed when light switch is off -> dash lights comes on. Light switch on similar dash behavior doesn't appear.

Light switch and blinker switch seams ok.

It burns fuse number 20 when I operate light switch.

I have couple possible ideas :
Heater blower motor is dead, bad grounding or wiper motor.

Do you have ideas to help me?

Juuso from Finland
Post #749785 7th Jan 2019 5:38pm
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4RF RDS



Member Since: 19 Jul 2015
Location: Ottawa
Posts: 933
Canada 2000 Defender 110 Td5 XS CSW Epsom Green
Check your fuse box for water incursion, also check under the seat at the ECUs and relays for water incursion. 2010 Range Rover MkIII Autobiography Super Charged (Idris)
2003 Range Rover Mk III (Desmond FitzWilliam)
2000 Defender 110 CSW TD5 (CTX)
1992 Range Rover Classic (Lizzy)
1972 Series III 300 Tdi (Stanwood)
1967 MGB GT

Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin to slit throats.
H. L. Mencken (1880 - 1956)
Post #749789 7th Jan 2019 6:16pm
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lightning



Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 2774
United Kingdom 
If the heater drain plug is blocked it could be that the heater air intake filled with water and got into the motor causing it to stall.
This happened to mine, fortunately l realised before the motor burnt out, but it did smell a bit.
Post #749828 7th Jan 2019 9:04pm
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NoFuel



Member Since: 19 Jun 2018
Location: Pirkkala
Posts: 6
Finland 2003 Defender 110 Td5 CSW Keswick Green
Both fuseboxes are dry and in good condition, also drainplug is ok and blower motor is dry.

Any other suggestions?
Post #750070 8th Jan 2019 8:30pm
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dorsetsmith



Member Since: 30 Oct 2011
Location: South West
Posts: 4554
check earthing battery to chassis to transfer box and chassis to bulk head

also is it dry behind the dash ?



Click image to enlarge
Post #750076 8th Jan 2019 8:44pm
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NoFuel



Member Since: 19 Jun 2018
Location: Pirkkala
Posts: 6
Finland 2003 Defender 110 Td5 CSW Keswick Green
I added alternative earthing point (chassis -> bulkhead). earthing point from battery to chassis was ok.
I did measure all earthing points and they were ok.

I checked that blower motor is functional applying current straight from battery.

when testing blower motor from inside (wire from black to green connector) dash lights were glowing. When I removed fuse number 18 and 19 glow got weaker. I put fuses back and glow got brighter.


I measured all fuse block slots for shot circuit and all ok.

am I missing something?
Post #751919 17th Jan 2019 5:42pm
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