PaulP
Member Since: 04 May 2007
Location: Barcelona
Posts: 4317
  
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thorgal wrote:I just though i would ask since many users report huge car battery drainage from plugin in to cigarette lighter lead.
Bear in mind that it makes no sense to power the vehicle server from the cigarette lighter/power socket as in the case of the D3 the vehicle server gets its power from the permanent 12V in the OBDII socket anyway.
If it helps, the rating of the mains power supply that Blackbox sell is:
INPUT: 100-240VAC 50/60Hz 0.3A
OUTPUT: 12VDC 1A
The external PSU is, however, a good idea when using the Faultmate away from the D3 for example, when updating or transferring over files to flash. 2006 Discovery 3 TDV6 SE Auto Buckingham Blue
2007 Golf GT DSG
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 25th Nov 2009 4:14 pm |
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DiscoDunc
Member Since: 08 May 2006
Location: Bristol
Posts: 16390
  
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best to get a good car bettery charger as well and leave it connected when uploading ccf files etc. with ignition on battery goes flat in minutes. Duncan
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If I'd known I was going to be so thirsty this morning I'd have drunk more beer last night.
FFRR Autobiography 4.4 SDV8 MY17
D4 HSE MY13 SOLD
FFRR 3.6 Vogue TDV8 SOLD
D4 HSE MY10 SOLD
D4 SE TECH MY15 SOLD
D4 XS MY12 SOLD
D4 HSE MY10 SOLD
D3 HSE MY06 - Re-Cycled Worldwide
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| 25th Nov 2009 4:26 pm |
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wiggs
Member Since: 03 Sep 2006
Location: Manchester
Posts: 14372
 
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Minutes  i can leave mine on for over 2 hours with no problems G4 Gone ...but not forgotten
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| 25th Nov 2009 5:16 pm |
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thorgal
Member Since: 26 Nov 2008
Location: on the east side
Posts: 541
  
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Yes,yes I forgot to mention that I was aware of permanent 12 v socket in OBD II,but to prevent any drainage would 't it be easier to leave the car engine ON while performing scan , diagnostics of CCF files instead leaving the ignition in position II? or I just missing same valuable knowledge.
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| 25th Nov 2009 5:17 pm |
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wiggs
Member Since: 03 Sep 2006
Location: Manchester
Posts: 14372
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Should normally be left with ignition lights on (key position 2 )...well thats how i use it anyway G4 Gone ...but not forgotten
Last edited by wiggs on 25th Nov 2009 5:35 pm. Edited 1 time in total
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| 25th Nov 2009 5:25 pm |
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thorgal
Member Since: 26 Nov 2008
Location: on the east side
Posts: 541
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So, theoretically speaking, I could just leave my car running ,while performing longer operations or it is only position II with engine off?
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| 25th Nov 2009 5:31 pm |
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wiggs
Member Since: 03 Sep 2006
Location: Manchester
Posts: 14372
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Dunno , i would wait for Colin to answer . Im sure i tryed it once with the engine running and got some errors G4 Gone ...but not forgotten
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| 25th Nov 2009 5:34 pm |
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DiscoDunc
Member Since: 08 May 2006
Location: Bristol
Posts: 16390
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nope,mine goes flat in about 15mins with the ignition in position II - even with the aircon, etc all switched off - yours will last longer cos its orange  Duncan
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If I'd known I was going to be so thirsty this morning I'd have drunk more beer last night.
FFRR Autobiography 4.4 SDV8 MY17
D4 HSE MY13 SOLD
FFRR 3.6 Vogue TDV8 SOLD
D4 HSE MY10 SOLD
D4 SE TECH MY15 SOLD
D4 XS MY12 SOLD
D4 HSE MY10 SOLD
D3 HSE MY06 - Re-Cycled Worldwide
Last edited by DiscoDunc on 25th Nov 2009 5:55 pm. Edited 1 time in total
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| 25th Nov 2009 5:41 pm |
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thorgal
Member Since: 26 Nov 2008
Location: on the east side
Posts: 541
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I heard that some soft codes-faults are better read while engine still running since they might disappear with the next start up.
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| 25th Nov 2009 5:52 pm |
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BBS SPY
Site Sponsor
Member Since: 15 Jun 2007
Location: Sunny Cyprus
Posts: 3054
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Interesting thought, leaving the engine running.
On earlier cars having the engine running or the car moving would inhibit communications with some ECU's and I can understand why, because the ECU only has one processor and on earlier units it could not do diagnostics as well as its normal job at the same time. Probably not so important on these later cars which have much faster processors
My take on it has always been to follow the same proceedure as the origional equipment which almost always is Ign on but engine not running, although there are times when the engine needs to be running such as measuring fuelling and air flow etc. But for sure you would not want the engine running when doing programming etc as that has an all ECU reset command at the end.
A mate of mine wanted to install a taxi meter which requires current road speed information on a CAN based vehicle and asked me about it. I said it could be done but only by making a special unit that monitored the regular CAN traffic, picking up the road speed data, but in the end he found an outfit that made a box that provided the data. However the Box basically opened up a diagnostic session with the EMS ECU and using generic OBDII commands continually requests the road speed data. I did not think that was the best way to do it, but it seemed to work for him ok.
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| 25th Nov 2009 7:04 pm |
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evo8
Member Since: 29 Jan 2008
Location: Zalesie
Posts: 289
 
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experience from non-LR spec diag - running diagnostics on a running engine might show some faults which are not real; so I would only check for faults with engine not running; 2013 D4 TDV6 S; Baltic Blue; IID Tool BT
2007 D3 TDV6 SE, Auto; club Faultmate MSV2
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| 25th Nov 2009 9:54 pm |
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thorgal
Member Since: 26 Nov 2008
Location: on the east side
Posts: 541
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Should I do a full scan with engine running, as my first task on my car, than?
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| 28th Nov 2009 1:17 am |
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PaulP
Member Since: 04 May 2007
Location: Barcelona
Posts: 4317
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You could do, but there's not much point.
The vehicle scan tool is used to 'sniff out' which ECUs are fitted to a vehicle for licensing purposes. As the D3 is a CAN-based system, all ECUs are licensed under the same SM129.
You can still do it though if you want to test that everything is working ok.
I would first go into the various modules and read fault codes, freeze frame data and learn how to save and interpret stuff.
Before you make ANY changes, store a copy of whatever you're working on just in case.
Just leave the key in position II - no real need to start it if you're just scanning and playing around.
Cheers,
Paul 2006 Discovery 3 TDV6 SE Auto Buckingham Blue
2007 Golf GT DSG
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| 28th Nov 2009 7:37 am |
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thorgal
Member Since: 26 Nov 2008
Location: on the east side
Posts: 541
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That is some good info for starters.Thanks.
It will probably take me a fare share of time to learn about thing or two before my Foultmate reaches a full potential , who knows , maybe never,but it is fun to play with vehicles brains  for once, instead of guts all the time.
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| 28th Nov 2009 12:53 pm |
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BBS SPY
Site Sponsor
Member Since: 15 Jun 2007
Location: Sunny Cyprus
Posts: 3054
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Yep Spot on again Paul.
The Vehicle scan does nothing more than list the ECU's present and communicating on a Vehicle. It has no diagnostic purpose, although it can sometimes be useful as an alternate module, to see if you can get comms with a particular ECU that may not responding using the regular module.
It is also a function that works irrespective of license too, which is handy for cases where there is a problem preventing total communications on the licensed vehicle, because the equipment can then be used to do a scan on another vehicle to validate that the equipment is working fine or not.
The feature was not really put in for CAN bus vehicles because as Paul notes, all vehicle systems are covered under one license anyway, however some other LR models could have different ECU's in depending on exactly when they were built etc, so the Vehicle Scan would show us exactly which ones to license in those cases.
Offer Close Reminder
Please note that today is the last day for anyone wishing to take advantage of this special 20% discount offer on the Faultmate MSV-2.
Regards
Colin
Last edited by BBS SPY on 30th Nov 2009 9:10 am. Edited 1 time in total
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| 30th Nov 2009 8:01 am |
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