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DeCA

Member Since: 18 Aug 2020
Location: Vlaanderen
Posts: 8

2007 Defender 90 Puma 2.4 SW Barolo Black

Hi, I cleaned everything, stil have de same problem!

Even I reconnected de the brand new battery..

12th Sep 2020 3:02pm

unclesam

Member Since: 09 Dec 2018
Location: Krakow
Posts: 13

2008 Defender 110 Puma 2.4 SW Cobar Blue

So you dont have anything OBD-connected and you still get issue described in this thread?

14th Sep 2020 6:54am

DeCA

Member Since: 18 Aug 2020
Location: Vlaanderen
Posts: 8

Yes indeed!

14th Sep 2020 8:03am

unclesam

Member Since: 09 Dec 2018
Location: Krakow
Posts: 13

To me this clearly looks like communication issue between ECU and Instrument cluster
There is nothing else connected to the bus except of above two.

I would then check wiring between Instrument Cluster and ECU.
First I would check ECU plugs. In my Puma there were signs of oxidization on some of the pins.

14th Sep 2020 8:07am

DeCA

Member Since: 18 Aug 2020
Location: Vlaanderen
Posts: 8

OK, i will do the check!

To be sure:
ECU, where do I find these.
Are the wires from the instrument-cluster al together.

I have an manual of my 2007 but to bid to find....
Thx!

14th Sep 2020 8:31am

unclesam

Member Since: 09 Dec 2018
Location: Krakow
Posts: 13

Wires are bundled in the loom . If there is a pitfall that's going to be challenge.

But first check ECU plugs. ECU is in the middle of engine bay handing on bulkhead.
Be gentle, dont break anything

14th Sep 2020 8:43am

Martin
Site Admin

Member Since: 02 Apr 2007
Location: Hook Norton
Posts: 6605

2015 Defender 90 Puma 2.2 XS CSW Montalcino Red

The CAN bus wires are on the brown coloured ECU plug.

Do you have a multimeter you can use to do some basic resistance checks?

1988 90 Td5 NAS soft top

2015 D90 XS SW

14th Sep 2020 9:21am

DeCA

Member Since: 18 Aug 2020
Location: Vlaanderen
Posts: 8

I recently bought a multimeter, so I check the brown plugs with a beep test?

14th Sep 2020 9:54am

unclesam

Member Since: 09 Dec 2018
Location: Krakow
Posts: 13

you should check wiring continuity on respective PINs between ECU and Instrument cluster (the PINs that are for CAN connectivity ) .
You will need eletrical manual for puma and some medium knowledge of car and electrics.
If you have doubts , guess you need to visit some workshop.

14th Sep 2020 10:07am

Martin
Site Admin

Member Since: 02 Apr 2007
Location: Hook Norton
Posts: 6605

With everything still plugged in, use your multimeter in resistance setting to measure across pins 6 and 14 of the OBD port:

(ignore pin 4 at the moment)

You should measure around 60 Ohms

1988 90 Td5 NAS soft top

2015 D90 XS SW

14th Sep 2020 10:37am

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