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Old 6th July 2020, 12:17   #1
spirit6060
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Default Problems with BCU

Hello everyone.

I hope this post is in the right place.
I have a MG ZTT diesel 130 face-lift model. VO 54 MKP

Last year, I noticed the cruise wasn't working. Checked fuses etc but couldn't see anything amiss but as I don't use it much I wasn't too bothered. Over the winter, I noticed that the brake lights stayed on for a couple of minutes when I started first thing in the morning - at the end of the street the lights behaved themselves. I had to undergo chemo/RT and then surgery in February 2020. On Friday 20th March, the day lockdown was announced, I noticed that the front fog lights were on continuously. I couldn't do anything other than disconnect the battery over the weekend. My usual garage (a former BL/Rover/MG dealer in Cardiff) shut for a couple of weeks but when he re-opened, he said I needed a body control unit which he obtained and fitted. The fog lights were sorted... until a neighbour said 'your front fogs are on'. He then replaced the BCU again together with another control unit from another MG. This was successful for 3 days until the problem recurred. He said I needed a T4 computer to reset the units. The only problem is - he seems to have given up. He says he will collect the car but doesn't.
It hasn't a problem as I've been shielding since my cancer treatment, but will need to go back to work soon.
Now the restrictions have eased in Wales, I can now travel.
Do you know anyone expert in solving this problem

Thanks in advance. Rob

Last edited by spirit6060; 6th July 2020 at 12:19..
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Old 6th July 2020, 12:33   #2
vitesse
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Default

Try getting hold of Wynn Fellowes in Swansea, has a T4, said to be on Facebook, also know as eurorover.

or Mark at MJN Motors in Bristol. http://www.mjnmotors.com

Regards

Last edited by vitesse; 6th July 2020 at 12:35.. Reason: added Bristol
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Old 6th July 2020, 14:01   #3
BigRuss
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Default

The fog lights are not anything to do with the body control unit, I don't know what made the garage think that

The fog lights are controlled by the light switch module

If you got a used replacement or borrow one to try and the fogs go out then that's the problem

Russ
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Old 13th August 2020, 18:44   #4
spirit6060
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Talking

Quote:
Originally Posted by BigRuss View Post
The fog lights are not anything to do with the body control unit, I don't know what made the garage think that

The fog lights are controlled by the light switch module

If you got a used replacement or borrow one to try and the fogs go out then that's the problem

Russ
Thanks for the message. I have now been able to travel to Bristol to see Mark at mjn. As you say, the lights are controlled by the light switch module, which Mark replaced from a donor car. Lights working perfectly now that everything has been re-set using T4. Cruise control also rectified - T4 showed 'clutch depressed'. New clutch fitted in France 3 years ago and they must affected the sensor. Mark adjusted the sensor as well. So all good. Thanks for your comments and recommendations.

Last edited by spirit6060; 13th August 2020 at 18:49.. Reason: typo
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Old 13th August 2020, 18:47   #5
spirit6060
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Quote:
Originally Posted by vitesse View Post
Try getting hold of Wynn Fellowes in Swansea, has a T4, said to be on Facebook, also know as eurorover.

or Mark at MJN Motors in Bristol. http://www.mjnmotors.com

Regards

Thanks for your message. I have now been able to travel to Bristol to see Mark at mjn. He has done a fantastic job at a great price. Supplied a replacement light unit and re-set the cruise.
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Old 14th August 2020, 08:30   #6
SD1too
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Quote:
Originally Posted by spirit6060 View Post
I have now been able to travel to Bristol to see Mark at mjn. He has done a fantastic job at a great price.
Thanks Roberto for posting the successful resolution to your problem and for your endorsement of Mark at MJN, Bristol. He's certainly in a different league to your former MG Rover main dealer in Cardiff who we would all expect to have better knowledge of the 75/ZT!

Simon
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