|
||
|
20th January 2020, 09:27 | #1 |
Gets stuck in
MG ZT 2.0 cdti Join Date: Aug 2019
Location: Derby
Posts: 909
Thanks: 298
Thanked 191 Times in 149 Posts
|
Number Plate Lights
Hi all,
I know this has come up before, I've tried to find the thread but I cant, so I apologise. Basically, my near side number plate light has decided to pack up. It's not the bulb. The bulb holder is in nice condition, but no power coming to it. I know there's yet another ECU type thingy that can be the culprit. How do I go about finding / testing and sorting the problem out please? Many thanks in advance. Richard
__________________
….And the latest thing to break is..... ### MG STANDS FOR "MY GREMLIN" !!! |
20th January 2020, 09:35 | #2 |
This is my second home
rover 75 1.8 vvc club se wedgwood blue Join Date: Aug 2009
Location: Seaton Carew
Posts: 26,963
Thanks: 65
Thanked 7,142 Times in 4,642 Posts
|
PCB under the chrome plinth probably failed, you can repair, replace or bypass it. There's a how to for it
Sent from my moto g(7) power using Tapatalk |
20th January 2020, 13:11 | #3 |
This is my second home
Rover 75 CDT Manual Connoisseur SE, Rover 75 CDT Automatic Connoisseur SE & a Freelander Td4. Join Date: Jul 2009
Location: Hampshire
Posts: 11,578
Thanks: 3,470
Thanked 3,119 Times in 2,247 Posts
|
Yep that or the cable in the rubber corrugated pipe between the body and boot lid has broken.
I've had both happen. Easy way to check is to remove the boot lid trim panel and check the voltage at the cable terminals on the PCB. |
20th January 2020, 13:16 | #4 |
Gets stuck in
MG ZT 2.0 cdti Join Date: Aug 2019
Location: Derby
Posts: 909
Thanks: 298
Thanked 191 Times in 149 Posts
|
Would that put both number plate lamps out if it was a broken wire?
__________________
….And the latest thing to break is..... ### MG STANDS FOR "MY GREMLIN" !!! |
20th January 2020, 13:43 | #5 |
This is my second home
Rover 75 CDT Manual Connoisseur SE, Rover 75 CDT Automatic Connoisseur SE & a Freelander Td4. Join Date: Jul 2009
Location: Hampshire
Posts: 11,578
Thanks: 3,470
Thanked 3,119 Times in 2,247 Posts
|
Yep - both bulbs are wired in parallel on a PCB which is supplied with 12 volts and a return wire.
If you find voltage at the cable plugs then the PCB is at fault, and if you don't then the fault is on the supply side; commonly the cable where it flexes, or a bad earth connection to the car body. . Last edited by Mike Noc; 20th January 2020 at 13:46.. |
20th January 2020, 18:52 | #6 |
This is my second home
R75 Saloon. Join Date: Feb 2009
Location: France/or Devon.
Posts: 14,003
Thanks: 3,851
Thanked 2,167 Times in 1,816 Posts
|
I wonder why a PCB ???---It's just a12 volt supply to two 12 volt bulbs.---
|
20th January 2020, 20:13 | #7 |
This is my second home
Rover 75 CDT Manual Connoisseur SE, Rover 75 CDT Automatic Connoisseur SE & a Freelander Td4. Join Date: Jul 2009
Location: Hampshire
Posts: 11,578
Thanks: 3,470
Thanked 3,119 Times in 2,247 Posts
|
No idea Jon - would have been better hard wired.
|
20th January 2020, 20:32 | #8 |
MG ZT Join Date: Jan 2011
Location: Newcastle Upon Tyne
Posts: 20,151
Thanks: 3,565
Thanked 10,837 Times in 5,718 Posts
|
Would have been better if the things stayed fixed........mine has managed to stay illuminated for six weeks
Bulb warning this evening.......however it could be the crappy LED festoon bulbs this time, it will give me a chance to replace them with real bulbs though Brian |
20th January 2020, 20:43 | #9 |
MG ZT Join Date: Jan 2011
Location: Newcastle Upon Tyne
Posts: 20,151
Thanks: 3,565
Thanked 10,837 Times in 5,718 Posts
|
Nope, I'll need to investigate, a clout makes it work.......piece of shat
You have to love these cars for their unwavering reliability Brian |
20th January 2020, 20:58 | #10 |
MG ZT Join Date: Jan 2011
Location: Newcastle Upon Tyne
Posts: 20,151
Thanks: 3,565
Thanked 10,837 Times in 5,718 Posts
|
XFC000011MMM ........... I shall not be buying a new one
It has to be said, these things try your patience from time to time Brian |
|
|