Go Back   The 75 and ZT Owners Club Forums > The 75 and ZT Owners Club Forums > Technical Help Forum
Register FAQ Image Gallery Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Display Modes
Old 24th January 2013, 19:26   #1
kmtranter
Regular poster
 
MG ZT-T

Join Date: Jun 2011
Location: earl shilton
Posts: 95
Thanks: 0
Thanked 1 Time in 1 Post
Default Short circuit on brake light

The led brake light on my ztt has just to come on all the time but the other brake lights are all okay. I have disconnected this brake light for now.

Is there a wiring diagram any where so I can trace the wire in the car to either re-wire the light or sort out the problem.

Thanks in advance
kmtranter is offline   Reply With Quote
Old 25th January 2013, 00:06   #2
neilbaker86
Gets stuck in
 
MG ZT

Join Date: Jun 2011
Location: Oxford
Posts: 515
Thanks: 27
Thanked 66 Times in 42 Posts
Default

Just looked up the wiring diagram, the brake lights are on a switched supply from the LSM (light switch module).

The high-level is on a separate supply which goes through a 'Switch-Choke' - not entirely sure what this is for.

I'm not familiar with the tourer version of the 75/ZT as mine's a saloon. But as far as I can tell it's either a faulty LSM, or a supply is somehow getting onto the Blue/Purple wire which supplies the high-level brake light.

If the high-level brake light is mounted on the tailgate on tourers (which I think it is), then I'd start by checking to see if the wiring is chaffed where it comes through the rubber grommet to the tailgate, this was common on Rover 25/MG ZRs, although I haven't heard of it on a 75/ZT, but I guess it's possible.
neilbaker86 is offline   Reply With Quote
Old 25th January 2013, 06:30   #3
sworks
Rover excellence
 
sworks's Avatar
 
Rover 75 Tourer CDTi, 'marmite' contemporary Se, classic mini cooper and a trophy yellow TF

Join Date: Feb 2007
Location: Cumbria
Posts: 7,970
Thanks: 28
Thanked 50 Times in 44 Posts
Default

I had an issue with my high level brake light and traced it to a connector in the n/s/r panel near to the light unit. You can just about get to it by removing the top trim. I removed the connector and hard wired the wiring ImageUploadedByTapatalk1359099042.068227.jpg
__________________
.................................................

'Marmite' Possibly one of the most famous 75 tourers produced! left the production line as the last of only Three Rover 75 tourers produced in Trophy Yellow. 48 hours later Longbridge closed. The last sold ordered 75 Tourer. Paid for by the Phoenix Four and handed over by John Towers to the Warwickshire Northampton Air ambulance service as a Rapid Response vehicle
sworks is offline   Reply With Quote
Old 30th January 2013, 20:02   #4
kmtranter
Regular poster
 
MG ZT-T

Join Date: Jun 2011
Location: earl shilton
Posts: 95
Thanks: 0
Thanked 1 Time in 1 Post
Default

After looking at the high level brake light it looks like a problem with the connector on the circuit board. The way the kids close the rear glass panel can be too hard and the vibrations have caused the dislodging of the connector, when the connector was taken out and cleaned the brake light appears to work fine.
kmtranter is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 08:02.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright © 2006-2014, The Rover 75 & MG ZT Owners Club Ltd