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Procta



Member Since: 04 Dec 2016
Location: Sunderland
Posts: 3603

United Kingdom 
rev counter stopped working

Looks like i have a touch of french electrics, The rev counter has decided to stop, i have checked the fuse and had a bit of a fiddle with where its tapped into in the ecu, and nothing. I have noticed a little bit of a flicker so it must be getting power.
Any ideas on what could have gone wrong? Defender TD5 90 ---/--- Peugeot 306 HDI hatch back

Success is 90% Inspiration and 4 minutes Preparation # you can make it!

Post #845077 21st Jul 2020 5:30pm
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4RF RDS



Member Since: 19 Jul 2015
Location: Ottawa
Posts: 643

Canada 2000 Defender 110 Td5 XS CSW Epsom Green

Check your grounds for your gauges behind the binnacle. 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)

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 #845087 21st Jul 2020 6:15pm
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Procta



Member Since: 04 Dec 2016
Location: Sunderland
Posts: 3603

United Kingdom 

will dodgy earths make the gauge be hit and miss? It was reading ok and then started to act up, also if i put the blower on it starts to act up too. Defender TD5 90 ---/--- Peugeot 306 HDI hatch back

Success is 90% Inspiration and 4 minutes Preparation # you can make it!

Post #845262 22nd Jul 2020 3:41pm
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4RF RDS



Member Since: 19 Jul 2015
Location: Ottawa
Posts: 643

Canada 2000 Defender 110 Td5 XS CSW Epsom Green

Yes it could be a bad earth. Thumbs Up 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)

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 #845267 22nd Jul 2020 3:51pm
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Procta



Member Since: 04 Dec 2016
Location: Sunderland
Posts: 3603

United Kingdom 

Spot on, i will have a look at some point next week, Thumbs Up Defender TD5 90 ---/--- Peugeot 306 HDI hatch back

Success is 90% Inspiration and 4 minutes Preparation # you can make it!

Post #845278 22nd Jul 2020 4:21pm
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Dinnu



Member Since: 24 Dec 2019
Location: Lija
Posts: 158

Malta 1988 Defender 90 2.5 TD HT Caledonian Blue

Is the tachometer on the W terminal of the alternator? Or I am still years behind in technology? 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black

Post #845290 22nd Jul 2020 5:16pm
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Procta



Member Since: 04 Dec 2016
Location: Sunderland
Posts: 3603

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on these they are wired into the ECU, the older ones i believe are. Defender TD5 90 ---/--- Peugeot 306 HDI hatch back

Success is 90% Inspiration and 4 minutes Preparation # you can make it!

Post #845343 22nd Jul 2020 8:17pm
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Nigelpugh7



Member Since: 18 May 2018
Location: Solihull
Posts: 115

United Kingdom 

If it helps our TD5 Rev counter stopped working, quite some time back, only got around to looking at it recently.

We assumed that the Rev counter had died,,we now know it was just the wire from the multiplug to the Rev counter that had fallen out.

Could be the same on yours?

But yes check the Earth too, just put your meter across the +ve and the ground with the ignition on to see if you have 12V.

These pics might help if it is the multiplug which was the problem on ours.



Click image to enlarge



Click image to enlarge



Click image to enlarge



Click image to enlarge

Post #846639 28th Jul 2020 12:46pm
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Procta



Member Since: 04 Dec 2016
Location: Sunderland
Posts: 3603

United Kingdom 

I will double check that! to see if its just a daft loose connection Thumbs Up Defender TD5 90 ---/--- Peugeot 306 HDI hatch back

Success is 90% Inspiration and 4 minutes Preparation # you can make it!

Post #847927 4th Aug 2020 1:42am
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roel



Member Since: 08 Aug 2009
Location: Lelystad
Posts: 1816

Netherlands 2003 Defender 90 Td5 PU Caledonian Blue

On my 90 there was no connection with the ecu for the rev counter, so I had to run a separate cable. So it doesn't have to be in that connector. Roel

1984 90 2.5 na Diesel - RR V8 (1994-2001)
1997 Camel Trophy Discovery 300TDI (2001-2009)
2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts.
2003 90 Td5 (2009-now)

Post #847945 4th Aug 2020 7:53am
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Procta



Member Since: 04 Dec 2016
Location: Sunderland
Posts: 3603

United Kingdom 

well looks like i have a touch of french electrics, This works when it wants to, Give it some beans and the thing just stops working. Ie when you are going on a 70 mph road. Defender TD5 90 ---/--- Peugeot 306 HDI hatch back

Success is 90% Inspiration and 4 minutes Preparation # you can make it!

Post #853496 1st Sep 2020 6:05am
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grafty99



Member Since: 15 Aug 2012
Location: North Devon
Posts: 4542

United Kingdom 2002 Defender 90 Td5 HT Caledonian Blue

I'd check power or ground to the rev counter. Does it drop to 0 rpm or below 0 rpm?

The reason I ask is that my rev counter sits below 0 until you switch on the ignition - it then rises to 0 until you start it.

If it's a dodgy earth or power feed then it will drop below 0. If its a dodgy ECU connection then it will only drop to 0 and not below Thumbs Up 2002 90 Td5 Station Wagon
1990 Vogue SE
Triumph Tiger Explorer 1200
Td5 90 Thread http://www.defender2.net/forum/topic50767.html
Tdi 110 Thread https://www.defender2.net/forum/topic69562.html
RRC Thread http://www.defender2.net/forum/topic54492.html
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Post #853662 1st Sep 2020 7:17pm
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Procta



Member Since: 04 Dec 2016
Location: Sunderland
Posts: 3603

United Kingdom 

cheers i will have a look, but i think it could be a funny earth, When i have the lights on the selector for the window screen, and bottom heater ducts. the light goes out, and the comes back on again. Which i think is also connected with this rev counter problem. Not sure how the previous owner has the rev counter wired in. But i think i will have to look at the earths. Defender TD5 90 ---/--- Peugeot 306 HDI hatch back

Success is 90% Inspiration and 4 minutes Preparation # you can make it!

Post #856243 16th Sep 2020 6:10am
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