battery drain fuse 49

Mercedeschris · Feb 27, 2018

i have a 2004 Vogue L322. And inherited an on going battery drain. I see it’s a common fault on these cars. I’m an ex car Mecanic (30 years ago) but been in trade ever since. My drain is 2.08 Amps. If I remove fuse 49 it then drops to 50-60 milli amps which is about right to my mind. If remove the blue plug on the media box in rear 1/4 the drain disappears? The pins had some corrosion and one pin had completely gone. I had opened the unit and soldered in a new pin. The sat nav unit now works (blank screen until then) but drain still there?
Any ideas any one
Many thanks in advance

wil2813 · Feb 27, 2018

poss hedgehog on heater

Mercedeschris · Feb 27, 2018

wil2813 said:
poss hedgehog on heater

Hi there.
I checked that first of all as I was a manager at BMW for 10 years and it was an epidemic on most BMWs and the L322 electrics are mainly BMW E38 7 series.
My drain goes when Sat Nav box is disconnected? Just confused why this ECU would consume 2 amps.
I think all RR owners have suffered battery drains at some point. Thanks for your reply though
Regards

holidaychicken · Feb 27, 2018

Have you got the Rave Electronics manual as it will tell you what else is on fuse 49, I’m away or I’d look it up for you

Mercedeschris · Feb 27, 2018

holidaychicken said:
Have you got the Rave Electronics manual as it will tell you what else is on fuse 49, I’m away or I’d look it up for you

Hi there

I must admit I’ve never heard of it LOL
I’ll do some research on it.

Many thanks for the tip

holidaychicken · Feb 27, 2018

Have a look here https://www.landyzone.co.uk/land-ro...lus-other-useful-info-on-range-rovers.322195/

Rave = Landrover Bible

I think I got the the electronics manual separately but have a look. It tells you where every pin of every ECU goes and also all your fuses. Water ingress in the rear compartment is fairly common so even though you have fixed one part it could still be bad inside or something else connected to it is

Mercedeschris · Feb 27, 2018

holidaychicken said:
Have a look here https://www.landyzone.co.uk/land-ro...lus-other-useful-info-on-range-rovers.322195/

Rave = Landrover Bible

I think I got the the electronics manual separately but have a look. It tells you where every pin of every ECU goes and also all your fuses. Water ingress in the rear compartment is fairly common so even though you have fixed one part it could still be bad inside or something else connected to it is

Thanks again
I’ll look at it on my laptop tomorrow only on iPhone at present so it’s a bit fiddly.
Regards

Mercedeschris · Feb 28, 2018

Hi all

I have also noticed that since the sat nav screen ecu draining the battery. The interior lights, remote central locking, heated seats, heater control panel have all stopped working?
Any body had a similar situation?

Regards

Mercedeschris · Feb 28, 2018

holidaychicken said:
Have you got the Rave Electronics manual as it will tell you what else is on fuse 49, I’m away or I’d look it up for you

Hi there
Is this Rave manual free to down load? I seem to be struggling to get it to download. That said I'm no IT wiz to say the least.

Regards

brianp38dse · Feb 28, 2018

Yes Rave is a free download try the links in this thread and there is also a nice how to video by Saintv8 on rave hope this helps.
https://www.landyzone.co.uk/land-rover/rave-explain-like-im-five.327253/

holidaychicken · Feb 28, 2018

I would say you have some lose connections somewhere but i would also be plugging it into diagnostics. Have you disturbed anything in the rear side panel where the satnav is or up behind the heater control panel ?
I can email you the electronics library as it's only 7 Mb and has all the fuse details and gives a description of what ECU controls what equipment.
If you pm me your email I'll send it over

Mercedeschris · Mar 1, 2018

holidaychicken said:
I would say you have some lose connections somewhere but i would also be plugging it into diagnostics. Have you disturbed anything in the rear side panel where the satnav is or up behind the heater control panel ?
I can email you the electronics library as it's only 7 Mb and has all the fuse details and gives a description of what ECU controls what equipment.
If you pm me your email I'll send it over

Many thanks again.

holidaychicken · Mar 1, 2018

Ok, delete your email address before you get spam botted !!

holidaychicken · Mar 1, 2018

On it's way, there is a load of information in it, have a read through the description and operation sections as well

Mercedeschris · Mar 1, 2018

holidaychicken said:
On it's way, there is a load of information in it, have a read through the description and operation sections as well

You are a gent

Saint.V8 · Mar 1, 2018

Mercedeschris said:
You are a gent

Careful, he'll get a big head and then Alan will get jealous and no longer play with his winky!

holidaychicken · Mar 1, 2018

Alan is far easier than that

tomcat59alan · Mar 1, 2018

holidaychicken said:
Alan is far easier than that

And I don't get jealous ,ask your missus.

holidaychicken · Mar 1, 2018

I will when you send her home, no rush

Saint.V8 · Mar 1, 2018

Does this mean I get sloppy thirds again lads....??

Come on, when do I get to go first?

battery drain fuse 49

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