Not joined yet? Register for free and enjoy features such as alerts, private messaging and viewing latest posts and topics.

CHECK NUMBER PLATE LIGHT ALERT MESSAGE

Discuss the problems with your X5 (E53).
User avatar
shy7g
Member
Member
Posts: 172
Joined: Mon Jun 11, 2012 3:11 pm
Location: Cwmbran

CHECK NUMBER PLATE LIGHT ALERT MESSAGE

Post by shy7g » Fri Mar 01, 2013 4:20 pm

Hi ALL
Having fitted a rear view camera with integrated LED light I now have the "Check Number Plate Light" alert message coming up. All is fine with the light and obviously it isn't a canbus error free type, but is there a way to override this message somehow??

User avatar
xl5
Member
Member
Posts: 205
Joined: Sun Dec 23, 2012 11:53 am

Re: CHECK NUMBER PLATE LIGHT ALERT MESSAGE

Post by xl5 » Fri Mar 01, 2013 4:22 pm

coding or a resister...
this is mine , x5 e70 2007 msport

User avatar
shy7g
Member
Member
Posts: 172
Joined: Mon Jun 11, 2012 3:11 pm
Location: Cwmbran

Re: CHECK NUMBER PLATE LIGHT ALERT MESSAGE

Post by shy7g » Fri Mar 01, 2013 4:28 pm

[quote="xl5"]
coding or a resister...
[/quote]
PLEASE EXPLAIN MORE?

Horizon
Snr Member
Snr Member
Posts: 2599
Joined: Sun Jun 10, 2012 7:34 pm
Location: Bury Lancashire

Re: CHECK NUMBER PLATE LIGHT ALERT MESSAGE

Post by Horizon » Fri Mar 01, 2013 4:47 pm

Coding: ie, turn off the light check system for the number plate lights with a scanner. Fit a resister across the bulb feed wires to kid the canbus that it is reading the resistance of a normal bulb
2011 Kia Sorento KX3  2.2D 60 Plate Auto in black ( mine )
BMW E83 X3.  3.0d M Sport, 2008 in black ( now gone )
BMW E93 330i Convertible  Msport  2007.  ( Now sold )
VW Golf 2.0 TDI 140 GT 2010 ( now sold )
Now Sold 55 plate, X5, 3.0 D Sport. Silv

User avatar
shy7g
Member
Member
Posts: 172
Joined: Mon Jun 11, 2012 3:11 pm
Location: Cwmbran

Re: CHECK NUMBER PLATE LIGHT ALERT MESSAGE

Post by shy7g » Fri Mar 01, 2013 7:11 pm

[quote="Horizon"]
Coding: ie, turn off the light check system for the number plate lights with a scanner. Fit a resister across the bulb feed wires to kid the canbus that it is reading the resistance of a normal bulb
[/quote]
Sound good, cut to the chase, Anyone know what size resistor is needed, by any chance?

User avatar
xl5
Member
Member
Posts: 205
Joined: Sun Dec 23, 2012 11:53 am

Re: CHECK NUMBER PLATE LIGHT ALERT MESSAGE

Post by xl5 » Fri Mar 01, 2013 7:18 pm

25 watt from ebay..
this is mine , x5 e70 2007 msport

User avatar
shy7g
Member
Member
Posts: 172
Joined: Mon Jun 11, 2012 3:11 pm
Location: Cwmbran

Re: CHECK NUMBER PLATE LIGHT ALERT MESSAGE

Post by shy7g » Fri Mar 01, 2013 7:43 pm

[quote="xl5"]
25 watt from ebay..
[/quote]
Would anyone know what the resistor value needs to be??

User avatar
shy7g
Member
Member
Posts: 172
Joined: Mon Jun 11, 2012 3:11 pm
Location: Cwmbran

Re: CHECK NUMBER PLATE LIGHT ALERT MESSAGE

Post by shy7g » Sun Mar 03, 2013 3:23 pm

[quote="shy7g"]
[quote="xl5"]
25 watt from ebay..
[/quote]
Would anyone know what the resistor value needs to be??
[/quote]
HAD SOME FEED BACK - 3  Ohms has been mentioned several times. :thumbup:

User avatar
marlin758
Member
Member
Posts: 94
Joined: Sun Jan 02, 2011 6:27 pm
Location: N Lancs

Re: CHECK NUMBER PLATE LIGHT ALERT MESSAGE

Post by marlin758 » Thu Mar 07, 2013 8:21 am

I wouldn't have thought that 3 ohms is the correct value .

I may be wrong  ( it has been known )  but considering  a 5 watt number plate bulb -

Watts = Volts x Amps  so Amps = Watts / Volts    5 /12 = 0.6 amps -  you are trying to mimic the 5watt bulb with a resistor

Resistance = Volts / Current (Amps) R = 12/ 0.6 = 20 ohms


Using a 3 ohm resistor -
Current = Volts / Resistance    so Current = 12/3  = 4 Amps

Power dissipated ( Watts) = Volts x Amps  = 12/4  = 48 WATTS


A 3 Ohm 25 Watt resistor is going to glow in the dark  :o

If you are going to use one I would mount it outside the car in the airflow to keep it cool  :D

I would have thought that 20 or 22 ohms would be nearer the mark .
Last edited by marlin758 on Thu Mar 07, 2013 8:29 am, edited 1 time in total.
55 3.0 D Sport - Silver - Black leather - Carbon fibre badges - Rear view camera - Webasto remote control modification, HID Headlamps and all the rest are LED's.

dark_stranger
Member
Member
Posts: 301
Joined: Mon Feb 06, 2012 9:38 pm

Re: CHECK NUMBER PLATE LIGHT ALERT MESSAGE

Post by dark_stranger » Wed Apr 26, 2017 2:41 pm

I am also getting the same error after installed LED number plate units.  Can anyone provide a link to the resistor I need.

Aware this is a rather old thread.
Last edited by dark_stranger on Wed Apr 26, 2017 4:53 pm, edited 1 time in total.

User avatar
shy7g
Member
Member
Posts: 172
Joined: Mon Jun 11, 2012 3:11 pm
Location: Cwmbran

Re: CHECK NUMBER PLATE LIGHT ALERT MESSAGE

Post by shy7g » Wed Apr 26, 2017 5:53 pm

[quote="dark_stranger"]
I am also getting the same error after installed LED number plate units.  Can anyone provide a link to the resistor I need.

Aware this is a rather old thread.
[/quote]
To be totally honest with you I never got to the bottom of sorting this problem out on my X5, and since the original posting I now know when the ignition is either on or off cause to the warning sound for the rear plate LED light, would be interested still on how to rectify the problem as the error free load resistors I had with the lights never worked
Image

Horizon
Snr Member
Snr Member
Posts: 2599
Joined: Sun Jun 10, 2012 7:34 pm
Location: Bury Lancashire

Re: CHECK NUMBER PLATE LIGHT ALERT MESSAGE

Post by Horizon » Wed Apr 26, 2017 6:11 pm

[quote="dark_stranger"]
I am also getting the same error after installed LED number plate units.  Can anyone provide a link to the resistor I need.

Aware this is a rather old thread.
[/quote]
I bought error free LED bulbs from HIDS Direct, I never had any warnings, also Scanner 1.4.0 or Carly can code out the warning/ bulb check
2011 Kia Sorento KX3  2.2D 60 Plate Auto in black ( mine )
BMW E83 X3.  3.0d M Sport, 2008 in black ( now gone )
BMW E93 330i Convertible  Msport  2007.  ( Now sold )
VW Golf 2.0 TDI 140 GT 2010 ( now sold )
Now Sold 55 plate, X5, 3.0 D Sport. Silv

User avatar
Steamyrotter
Snr Member
Snr Member
Posts: 1304
Joined: Sat Jul 31, 2010 11:06 pm

Re: CHECK NUMBER PLATE LIGHT ALERT MESSAGE

Post by Steamyrotter » Thu Apr 27, 2017 1:18 pm

[quote="marlin758"]
I wouldn't have thought that 3 ohms is the correct value .

I may be wrong  ( it has been known )  but considering  a 5 watt number plate bulb -

Watts = Volts x Amps  so Amps = Watts / Volts    5 /12 = 0.6 amps -  you are trying to mimic the 5watt bulb with a resistor

Resistance = Volts / Current (Amps) R = 12/ 0.6 = 20 ohms


Using a 3 ohm resistor -
Current = Volts / Resistance    so Current = 12/3  = 4 Amps

Power dissipated ( Watts) = Volts x Amps  = 12/4  = 48 WATTS


A 3 Ohm 25 Watt resistor is going to glow in the dark  :o

If you are going to use one I would mount it outside the car in the airflow to keep it cool  :D

I would have thought that 20 or 22 ohms would be nearer the mark .
[/quote]

Mathematically correct..
However the bulb check usually doesn't need to see the full load current or resistance,but something..
My trailer lights caused an issue (with the OEM bulb failure module) when i changed to LED.  But a 2.7K resistor in parallel with the lights sorted that.

It may be a case of trying a few values and seeing what it accepts.

But personally just turn the bulb failure off for number plate lights, not forgetting there are 3 checks in the LCM for Hot, Cold and In service.
If things were meant to be easy, then I will soon complicate them....
Please note...
Anything I say is only from my personal experience and knowledge..
I don't assume to know everything, and know there is a lot I don't know..
But then I could be talking bollox.. O:-)

User avatar
shy7g
Member
Member
Posts: 172
Joined: Mon Jun 11, 2012 3:11 pm
Location: Cwmbran

Re: CHECK NUMBER PLATE LIGHT ALERT MESSAGE

Post by shy7g » Thu Apr 27, 2017 2:50 pm

"But personally just turn the bulb failure off for number plate lights, not forgetting there are 3 checks in the LCM for Hot, Cold and In service."
Okay
1- So how do you go about turning the bulb failure for number plate lights function off???
2 - Is this accessed via the hidden menu?
3 - If YES how is this accessed?

dark_stranger
Member
Member
Posts: 301
Joined: Mon Feb 06, 2012 9:38 pm

Re: CHECK NUMBER PLATE LIGHT ALERT MESSAGE

Post by dark_stranger » Thu Apr 27, 2017 2:59 pm

[quote="shy7g"]
[quote="dark_stranger"]
I am also getting the same error after installed LED number plate units.  Can anyone provide a link to the resistor I need.

Aware this is a rather old thread.
[/quote]
To be totally honest with you I never got to the bottom of sorting this problem out on my X5, and since the original posting I now know when the ignition is either on or off cause to the warning sound for the rear plate LED light, would be interested still on how to rectify the problem as the error free load resistors I had with the lights never worked
Image
[/quote]

Ha, I ordered some of those last night, oh well.

Post Reply