Battery disconnection/retaining code

VVC-Geeza · 16th June 2011, 12:04

I'm sure i can remember reading or being told that it is possible to retain the code/settings on the ICE when disconnectiong the battery,in other words maintaining the power supply to it.Or have i got this wrong?

The reason i would like to be able to do this is twofold,firstly it would save the need to restore the iGO settings on my DD and secondly i have a car wth a radio code i don't know.

HarryM1BYT · 16th June 2011, 18:29

You can keep things running with a small 12v battery connected via the ciggy lighter socket - providing the socket normally remains powered with the ignition off. Another way would be to clip the small battery directly across the main batteries lugs. When doing this, you need to be very careful to not short the battery lugs, or short the positive one to ground and include a fuse in line with the small battery.

VVC-Geeza · 16th June 2011, 18:52

Thanks Harry,i'm surprised the DD dosen't store the navigation settings when the power supply is interupted

Can't remember if the cigar lighter is permanently live on the 75,will have to check.

HarryM1BYT · 16th June 2011, 19:58

On the facelift / MkII it is permanently live, but you need to be sure you don't pop the ciggy lighter fuse - by ensuring everything is turned off. Centre contact is +ve /positive.

VVC-Geeza · 16th June 2011, 20:11

Thanks, i'll find something with a cigar lighter plug snip the lead and attach som crocodile clips

16th June 2011, 12:04	#1
VVC-Geeza This is my second home 2005 Connoisseur SE 1.8 Turbo,2004 45 1.8 Connoisseur and my beloved 1998 VVC Coupe. Join Date: Nov 2009 Location: Derby. Posts: 8,802 Thanks: 2,022 Thanked 1,016 Times in 739 Posts	Battery disconnection/retaining code I'm sure i can remember reading or being told that it is possible to retain the code/settings on the ICE when disconnectiong the battery,in other words maintaining the power supply to it.Or have i got this wrong? The reason i would like to be able to do this is twofold,firstly it would save the need to restore the iGO settings on my DD and secondly i have a car wth a radio code i don't know. __________________ Last edited by VVC-Geeza; 16th June 2011 at 12:13..

16th June 2011, 18:29	#2
HarryM1BYT This is my second home 75 Contemporary SE Mk II 2004 Man. Sal. CDTi 135ps, FBH on red diesel, WinCE6 DD Join Date: May 2010 Location: Leeds Posts: 17,273 Thanks: 2,160 Thanked 2,061 Times in 1,586 Posts	You can keep things running with a small 12v battery connected via the ciggy lighter socket - providing the socket normally remains powered with the ignition off. Another way would be to clip the small battery directly across the main batteries lugs. When doing this, you need to be very careful to not short the battery lugs, or short the positive one to ground and include a fuse in line with the small battery. __________________ Harry How To's and items I offer for free, or just to cover the cost of my expenses... http://www.the75andztclub.co.uk/foru...40#post1764540 Fix a poor handbrake; DIY ABS diagnostic unit; Loan of the spanner needed to change the CDT belts; free OBD diagnostics +MAF; Correct Bosch MAF cheap; DVB-T install in an ex-hi-line system; DD install with a HK amp; FBH servicing. I've taken a vow of poverty. To annoy me, send money.

16th June 2011, 18:52	#3
VVC-Geeza This is my second home 2005 Connoisseur SE 1.8 Turbo,2004 45 1.8 Connoisseur and my beloved 1998 VVC Coupe. Join Date: Nov 2009 Location: Derby. Posts: 8,802 Thanks: 2,022 Thanked 1,016 Times in 739 Posts	Thanks Harry,i'm surprised the DD dosen't store the navigation settings when the power supply is interupted Can't remember if the cigar lighter is permanently live on the 75,will have to check. __________________

16th June 2011, 19:58	#4
HarryM1BYT This is my second home 75 Contemporary SE Mk II 2004 Man. Sal. CDTi 135ps, FBH on red diesel, WinCE6 DD Join Date: May 2010 Location: Leeds Posts: 17,273 Thanks: 2,160 Thanked 2,061 Times in 1,586 Posts	On the facelift / MkII it is permanently live, but you need to be sure you don't pop the ciggy lighter fuse - by ensuring everything is turned off. Centre contact is +ve /positive. __________________ Harry How To's and items I offer for free, or just to cover the cost of my expenses... http://www.the75andztclub.co.uk/foru...40#post1764540 Fix a poor handbrake; DIY ABS diagnostic unit; Loan of the spanner needed to change the CDT belts; free OBD diagnostics +MAF; Correct Bosch MAF cheap; DVB-T install in an ex-hi-line system; DD install with a HK amp; FBH servicing. I've taken a vow of poverty. To annoy me, send money.

16th June 2011, 20:11	#5
VVC-Geeza This is my second home 2005 Connoisseur SE 1.8 Turbo,2004 45 1.8 Connoisseur and my beloved 1998 VVC Coupe. Join Date: Nov 2009 Location: Derby. Posts: 8,802 Thanks: 2,022 Thanked 1,016 Times in 739 Posts	Thanks, i'll find something with a cigar lighter plug snip the lead and attach som crocodile clips __________________