Member Since: 08 Sep 2020
Location: Buckley, North Wales
Posts: 1150
Sorry I’m not understanding the words BJB and +ve
I was under the impression it was the negative side of the battery to test? But it’s in fact the positive?
+ve is the positive battery terminal?
BJB (battery terminal box) is this a module attached to the battery?
I don’t know what you mean by flat palm either.
Looking on YouTube etc can’t find anything to go off
ThanksDisco 3 SE Manual 2005 V6 2.7
Buckley, North Wales
11th Dec 2022 8:37 pm
Flatlander
Member Since: 20 Jul 2015
Location: Here
Posts: 575
It makes no difference if you monitor on the +ve (positive) or -ve (negative) side, the current draw will be the same on a closed circuit. It's physically easier to test on the +ve side.
BJB = battery junction box, the black fuse box next to the battery with the heavy red cable from the battery +ve going to it.
Look at the battery terminal, see if you can recognise anything that looks like a 'flat palm' - i.e. the connecting terminal that leads to the BJB.
I'm not of the 'youtube everything' generation - not an apology BTW, I prefer to use descriptive text.
11th Dec 2022 8:41 pm
cmb2020
Member Since: 08 Sep 2020
Location: Buckley, North Wales
Posts: 1150
Ok thanks I’ll have a go tomorrow and I think I’m understanding you
I’ll video it and if I mess up then at least I can share the process and hopefully your kind self can watch and let me know where I funked up
Can you confirm the settings on my multimeter are correct but I just need to move the red wire to the 10a socket? Or move the dial off 10a to 2m or 200m?
If it works then I’ll leave the video on YouTube also for people to copy in the futureDisco 3 SE Manual 2005 V6 2.7
Buckley, North Wales
11th Dec 2022 8:45 pm
Flatlander
Member Since: 20 Jul 2015
Location: Here
Posts: 575
To be honest, I'm not sure about your meter - if you want to measure in the 200mA range, then it appears correct but I'd normally expect the leads to be in the far right socket and the relevant current input socket, the guide lines hidden by your meter leads should show you the correct ones - some do use the 'Com' terminal but they're in the minority.
Using the 10A range will reduce accuracy so i'd recommend you use the 200mA range & connections.
11th Dec 2022 8:52 pm
cmb2020
Member Since: 08 Sep 2020
Location: Buckley, North Wales
Posts: 1150
I think I understand the process now.
Is this multimeter setting view clearer and correct?
Disco 3 SE Manual 2005 V6 2.7
Buckley, North Wales
11th Dec 2022 8:56 pm
Flatlander
Member Since: 20 Jul 2015
Location: Here
Posts: 575
Yep, that's correct. you might find the reading is the wrong way round (i.e. shows 0.040 rather than the expected -0.040) but it's the numbers that matter, not the presence or otherwise of the '-' symbol.
11th Dec 2022 9:00 pm
cmb2020
Member Since: 08 Sep 2020
Location: Buckley, North Wales
Posts: 1150
Thank you so much mateDisco 3 SE Manual 2005 V6 2.7
Buckley, North Wales
11th Dec 2022 9:14 pm
Flatlander
Member Since: 20 Jul 2015
Location: Here
Posts: 575
Just looked again at your photo, I can't work out if the line over the 'COM' is a connection or a 'hop' I can't find any user manual for the meter online without the product reference, so if you have a user manual, I'd recommend checking that for the correct connection. If you get it wrong, the worst will be 'nothing' or a blown internal fuse.
11th Dec 2022 9:35 pm
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 14176
Hi flatlander
Does this help in any way , alas couldn’t see any model number
Diode test, battery test and continuity test with acoustic signal
With memory function (HOLD) and automatic power-off function
With removable holster
2 measuring tips with measuring cable
Large LC display
Incl. 9 V block battery
Measuring ranges:
DC voltage: 200 mV, 2 V, 20 V, 200 V, 300 V
AC voltage: 2 V, 20 V, 200 V, 300 V
AC: 2 mA, 20mA/10A, 200 mA
Direct current: 200 μA, 2 mA, 20 mA/10 A, 200 mA
Battery test: 1.5 V, 9 V
Resistance: 200 Ω, 2 kΩ, 20 kΩ, 200 kΩ, 2 MΩ, 20 MΩ
Tried to get the settings clear with the flashDisco 3 SE Manual 2005 V6 2.7
Buckley, North Wales
12th Dec 2022 4:45 pm
cmb2020
Member Since: 08 Sep 2020
Location: Buckley, North Wales
Posts: 1150
Update:
Gave up and booked garage. Come back as they were too busy,
Have been getting so much conflicting information via groups etc that I tried a few variations to no luck
See attached images of correct settings on multimeter
But one is red on positive battery terminal and black on the fuse box terminal as stated here BUT the alarm goes off when I remove the chunky cable from the fuse box
I also tried this with the wires reversed too
Secondly I tried on the negative battery terminal and body ground then remove negative chunky cable off terminal. No alarm went off but Again no joy.
Hoping someone can look and tell me where I’m going wrong this time please? And thanks
Disco 3 SE Manual 2005 V6 2.7
Buckley, North Wales
13th Dec 2022 2:01 pm
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10735
So from the video, it was drawing about 60mA which is good enough to say there isn't a massive problem.
Therefore I could conclude:
1) There isn't a problem
2) The drain maybe in the thick cable to the starter/alternator
3) The drain maybe in the dual battery setup (which I assume wasn't connected).
If the alarm is now going off when you repeat, it means you have blown the fuse in the meter. (no surprise, you are overloading it). Try using the 10A terminal and COM which has a much bigger fuse. (and turn the dial clockwise 1 notch to 10A)
To avoid blowing fuses you need to ensure the car has shut down first, (as a minimum radio display off and (P) dash light off) but wait at least 15 mins really
13th Dec 2022 4:56 pm
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10735
You can test the fuses in the meter by setting the meter to the setting that beeps when the probes are connected together.
Then connect the red V terminal to 10A and then mA terminals. If both beep, both fuses are ok. If one doesn't beep you have blown a glass fuse in the rear of the meter
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