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Old 11th June 2019, 13:39   #11
Blink
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Does this help (pic in post 1)?

https://the75andztclub.co.uk/forum/s...ad.php?t=18356

Quote: ".... there are two wires in the 3 pin connector, green and green pink, terminated in connector pins.
one goes across the car into the Light switch module, presumably to notify the IPK if there is a problem with the trailer connection. the other goes into the fusebox, and along with the supplied fuse takes a supply to the back of the car ( dont know what for)."

Last edited by Blink; 11th June 2019 at 13:43..
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Old 11th June 2019, 17:24   #12
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Sorry if this is a bit of a hijack

If I have aftermarket towing electrics, to register a bulb failure on the trailer/caravan, is all I need https://rimmerbros.com/Item--i-GRID001528 item 14 and follow this thread
https://the75andztclub.co.uk/forum/s...ad.php?t=18356

Will this work with after market towing electrics or does it need to be genuine?

I have Hi line dash display, is this where the bulb failure warning comes up?
what bulbs does kit monitor?
I've never considered monitoring the trailer bulbs until this thread

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Old 14th June 2019, 20:49   #13
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Quote:
Originally Posted by snowman View Post
As I understand it lets you know when a bulb has gone on what you tow it senses the voltage drop when a bulb goes and then lets you know by a light on the dash
I think you mean CURRENT drop as the voltage stays the same.---
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Old 16th June 2019, 14:56   #14
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Ian,
The extra wire to the light switch is not something that would be easy to add to an aftermarket relay, as the relay needs to tell the light switch the has been a Bulb failure, which is done as a message on the extra wire mentioned in post 1.
The BMW equvilent part can be fitted, as per this post
https://www.the75andztclub.co.uk/for...6&postcount=17


As for the original posters query, the pin is not anything special I find something that fitted in a random board connector from farnell. Could have been one of these?
https://uk.farnell.com/wurth-elektro...imp/dp/2113407
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Now offering T4 services in the Fareham area

Replacement keys programmed / supplied / cut

Diesel 135 upgrade available

IPK virginisation and T4 matching available

Sorry, due to a big change in home circumstances, I am unable to do any large jobs at present, but can still offer evening time diagnostics.

Last edited by cb750chris; 16th June 2019 at 15:01..
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Old 16th June 2019, 15:39   #15
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Quote:
Originally Posted by cb750chris View Post
Ian,
The extra wire to the light switch is not something that would be easy to add to an aftermarket relay, as the relay needs to tell the light switch the has been a Bulb failure, which is done as a message on the extra wire mentioned in post 1.
The BMW equvilent part can be fitted, as per this post
https://www.the75andztclub.co.uk/for...6&postcount=17


As for the original posters query, the pin is not anything special I find something that fitted in a random board connector from farnell. Could have been one of these?
https://uk.farnell.com/wurth-elektro...imp/dp/2113407
Chris, useful thank you.
Does the BMW 61.35-8 369 019 relay replace the TEB7AS relay which I currently use to work the trailer lights?

Does the BMW relay wire into the cars harness the same as the TEB7AS relay?

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Old 21st June 2019, 10:29   #16
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Hi Ian,
The BMW relay does indeed replace the TEB7AS relay, and takes the same inputs as the existing relay too.
The post I linked to, details the connections to the relay, but not the wire colours (As I retrofitted the BMW relay in place of the original towing relay - so I didn't go right back to the car loom again, rather just used the cables I had already fitted)
__________________
Now offering T4 services in the Fareham area

Replacement keys programmed / supplied / cut

Diesel 135 upgrade available

IPK virginisation and T4 matching available

Sorry, due to a big change in home circumstances, I am unable to do any large jobs at present, but can still offer evening time diagnostics.
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