Member Since: 21 Oct 2016
Location: kent
Posts: 13663
Made all my leads up today
Just got to then add the 30 x Amp fuses
Fingers crossed weekend will be good weather
Thks again @pete for the great idea
30th Aug 2018 5:24 pm
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13663
Part 2
Have attached the leads and just locked the landy, bypassed bonnet
Charged battery since yesterday day , 12.9 Vdc
POS cable reading 0.93 M a
Here are the readings I’ve got , now got to wait 30 x mins
31st Aug 2018 4:26 pm
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13663
Just remembered , I haven’t got the glow plug J fuses plugged in, will check them later after I’ve waitted for the vehicle to go into sleep mode
Ie FL 1 and FL 4 , glow plugs
Alternator and dual battery lead disconnected
31st Aug 2018 4:32 pm
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10368
don't worry about the GP fuses.
if the battery cable reading is still high, then the fault is present.
GP unlikely to give problems.
Quote:
0.93 M a
It is incorrect to write this.
Its 0.93 A
Make sure the fuses don't touch the bonnet struts
31st Aug 2018 5:19 pm
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13663
Hi pete
Apologises and thks ref the decimal point
After waiting and going through all of them, everyone dropped to 0.13 A
Apart from fuse FL18 , that dropped to 0.32 A, after a while I started going through them again and found the 30 amp fuse for this had popped , so that threw up a red flag
So I assume then this FL18 is the problem circuit , if that’s the case I will then start seeing what this circuit is and what’s linked to this fuse down the line
Battery pos lead showed 0.31 A
Hopefully have made some progress with this
Funny enough the 60 x amp circuit was fine that’s attatched to the air compressor
What do u think as a second opinion please pete , FL18 ?????
Assume it’s not worth to redo a test lead so the 50 J fuse can be attatched
Many thks as always and will now have a look on the electrical diagrams to see what’s on that circuit
Last edited by gstuart on 31st Aug 2018 6:27 pm. Edited 2 times in total
31st Aug 2018 6:06 pm
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13663
Looks like FL18 goes into the interior fuse box
Fuse 53 I think will be first, that’s the radio , is a base model
Then go from there
At least it’s a way forward and proving 100% to go along the fuse circuit
31st Aug 2018 6:25 pm
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13663
Know I disconnected a Nokia 7W from the system, wonder if the wiring may effect it
So think tommorows job will be pull fuse 53 first and see what the readings are , but see other things are connected to the radio , ie steering wheel controls, clock spring, air bag
Or maybe a better idea, pull the radio and see what the multimeter Amp reading is first on the positive supply into the radio
As i can gain access by closing the passengers door catch and double pressing the alarm so can get inside the landy without the alarm going off
31st Aug 2018 6:33 pm
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10368
Considering a lot of the J fuses are more than 30A and we have replaced them all with 30 it's not a surprise one has blown.
It is bizarre it blew during the shut down period.
A blown fuse should read 0.00A so this flags me you did not zero your clamp before starting
Before putting a clamp round a wire turn the zero wheel until you get 0.00 or close.
Well press zero button on yours.
Regarding the blown fuse convert a pair of your cables to have male? Ends so you can plug in the origiinal J fuse.
I'll study measurements later to see what I can glean.
31st Aug 2018 6:49 pm
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13663
Hi pete
I did indeed ensure I zero’d the meter
Realised after I put the clamp meter on the loop with the 30 amp fuse on it , 1 x wire read 0.30 amps , other wire read zero, that’s when I released the fuse had popped
Reading further I see the FL18 goes onto other circuits , but can see when the Nokia c7 module was installed by the previous OP I unplugged the module but wiring is still in place
I’ll convert the leads tonight to accept the 50 amp J fuse ready for tommorow and restest the readings again
Will also drop the catch on the passenger door and double press the alarm so can gain access to the interior and if req can pull fuse 53 which goes to the radio and see if it drops
With ur fantastic help I do think today has been a bit of a breakthrough by using the loops which showed the identify of FL18 showing a high reading
Just can’t Thk u enough and hopefully in the future will help others who have this issues
Will report back tommorow after I’ve re attached the loop wire again with J fuse installed
31st Aug 2018 7:03 pm
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10368
Apologises. You had zeroed. That's good.
Humm I do struggle to believe these readings are accurate.
e.g FL7. That should not be reading 0.1A
Need to keep ensuring its zeroed before clipping it onto the next cable.
31st Aug 2018 7:09 pm
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10368
ok. lets assume the leak is thru FL18 for now.
FL18 will not just power the radio.
It will power loads of other fuses behind the glovebox.
If you open the circuit diagram, and search for LINK 18 (Ctrl F on a computer)
you will see all the other fuses it powers.
fuse 63 diag socket
fuse 53 radio
fuse 52 telephone
fuse 42
fuse 69 cool box
fuse 46 memory seats or electric seats
fuse 29 seat
fuse 7 drivers window
fuse 48 rear wiper
fuse 20 sunroof
fuse 44 auto gear selector stick
CJB functions/electronics etc.
fuse 55 cigar lighter front
I know you don't have all these toys, but for others.
So now you need to work out which of the ~7 fuses behind the glovebox this leak it going thru.
Most look unimportant. So you could take the approach of pulling all 7 out and ensuring your drop has gone after 25 mins.
It its gone, that is excellent. Then refit them 1 by 1 ( or 2 by 2),
Start with 44
or you could try measuring the voltage across the fuses.
Not easy where they are, and not confident it will work with a small leak
Last edited by Pete K on 30th Aug 2023 12:21 pm. Edited 5 times in total
31st Aug 2018 9:25 pm
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13663
Pete K wrote:
Apologises. You had zeroed. That's good.
Humm I do struggle to believe these readings are accurate.
e.g FL7. That should not be reading 0.1A
Need to keep ensuring its zeroed before clipping it onto the next cable.
Hi pete
Please, there’s never any need for u to ever apologise mate , as you’ve steered me in the right direction of this marathon amp find
I took the readings 4-5 times and did Zero again and again , I did Wonder why all of them showed amperage one way or another after 30 x minutes
Maybe I should have thought and used several meters as a comparison, when I’ve put the loop back with the j fuse will use several meters to see how they compare
31st Aug 2018 9:35 pm
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13663
Pete K wrote:
ok. lets assume the leak is thru FL18 for now.
FL18 will not just power the radio.
It will power loads of other fuses behind the glovebox.
If you open the circuit diagram, and search for LINK 18 (Ctrl F on a computer)
you will see all the other fuses it powers.
radio
cool box
memory seats or electric seats
fuse 7
fuse 48 rear wiper
sunroof
fuse 44 auto gear selector stick
CJB functions/electronics etc.
I know you don't have all these toys, but for others.
So now you need to work out which of the ~7 fuses behind the glovebox this leak it going thru.
Most look unimportant. So you could take the approach of pulling all 7 out and ensuring your drop has gone after 25 mins.
It its gone, that is excellent. Then refit them 1 by 1 ( or 2 by 2),
Start with 44
or you could try measuring the voltage across the fuses.
Not easy where they are, and not confident it will work with a small leak
Thks
Will have the test leads redone to accept the J fuse
Unfortunately I did at first think it just fed the radio but as u rightly say after I looked on the electrical diagrams I could see it served multiple items along the line
See what u mean about trying to test across the fuses, I did try a few and thought who the designed this fuse box location
Feel a lot happier as it’s progress in being able to narrow this parasitic battery drain down step by step and just really appreciate ur fantastic help in continually helping me with it
Will report back tommorow of what I find , also know I’ve been learning a considerable amount
Cheers pete
31st Aug 2018 9:46 pm
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10368
list updated with 12 fuses now !
31st Aug 2018 9:52 pm
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13663
Perfect
Many Thks and will indeed concentrate on those , also think I’ve got some extra thin test probes which I think will come in handy
Are u going to place ur bets now in which one , 1/12 chance
fuse 63 diag socket
fuse 53 radio
fuse 52
fuse 42
fuse 69 cool box
fuse 46 memory seats or electric seats
fuse 29 seat
fuse 7 drivers window
fuse 48 rear wiper
fuse 20 sunroof
fuse 44 auto gear selector stick
CJB functions/electronics etc.
fuse 55 cigar lighter front
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designed this fuse box location
