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Cubflyer



Member Since: 25 Sep 2021
Location: Suffolk
Posts: 278
United Kingdom 1994 Defender 90 300 Tdi SW Arles Blue
Defender 90 (300 Tdi) Trailer Warning light??
Hi folk

Bought a trailer back from Lincolnshire yesterday. The trailer, a Brian James Cargo Shifter had a 13 Pin plug fitted while my Beast has two 7 pin sockets. I fitted a 13 > 7 Pin adapter and all trailer lights functioned correctly. I should add my Defender90 is LED lit and the trailer was normal bulb.

What I didn't have was the green "Trailer" Warning light illuminated on the dash.

First thought is the bulb, but rather than taking the dash apart at this stage ... are there a pair of contacts I can short together to test the bulb circuit OR is there another way?

... and is there anything else I should check or be aware of??

MTIA (Still learning Whistle )

John 2010 Defender 90 300Tdi CW (White/1994)
2021 Defender 90 300Tdi SW (Blue/1994)
Post #943955 26th Feb 2022 7:34pm
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Silver Back



Member Since: 11 Jun 2015
Location: Lincolnshire
Posts: 407
United Kingdom 1998 Defender 110 300 Tdi HT Coniston Green
Hi John,

With the trailer cable disconnected the trailer indicator light should come on when you first put on the indicators. It should only flash once with the left / right indicator warning light and then extinguish.

Try disconnecting the trailer cable and putting on your indicators. If it doesn't work then the bulb may have blown.

Hope this helps.

Andy
Post #943965 26th Feb 2022 8:45pm
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Cubflyer



Member Since: 25 Sep 2021
Location: Suffolk
Posts: 278
United Kingdom 1994 Defender 90 300 Tdi SW Arles Blue
Quote:
With the trailer cable disconnected the trailer indicator light should come on when you first put on the indicators. It should only flash once with the left / right indicator warning light and then extinguish.

Try disconnecting the trailer cable and putting on your indicators. If it doesn't work then the bulb may have blown.

Hope this helps.

Andy


Hi Andy, thanks for that - much appreciated Thumbs Up

Just done the above but sadly nothing so I'll check the bulb tomorrow.

ATB

John 2010 Defender 90 300Tdi CW (White/1994)
2021 Defender 90 300Tdi SW (Blue/1994)
Post #943967 26th Feb 2022 8:56pm
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Ramsay



Member Since: 30 Sep 2015
Location: Moffat, Dumfries & Galloway
Posts: 631
Scotland 1995 Defender 110 300 Tdi CSW Auto Keswick Green
When the Led indicators were fitted was the relay changed? The Led one may need tuning to work correctly with trailer connected. 1995 Defender 110 CSW
1971 SIIA Lightweight
Post #943975 26th Feb 2022 10:53pm
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LandRoverAnorak



Member Since: 17 Jul 2011
Location: Surrey
Posts: 11324
United Kingdom 
^^^

This. Your LED indicators don't provide enough load to activate the trailer light. Either fit an adjustable flasher relay and tune as Ramsay suggests or fit load resistors to the indicators (or go back to bulbs). Darren

110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak

"You came in that thing? You're braver than I thought!" - Princess Leia
Post #943986 27th Feb 2022 8:44am
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Cubflyer



Member Since: 25 Sep 2021
Location: Suffolk
Posts: 278
United Kingdom 1994 Defender 90 300 Tdi SW Arles Blue
Ramsay wrote:
When the Led indicators were fitted was the relay changed? The Led one may need tuning to work correctly with trailer connected.


Hi Ramsey - thanks for your reply. Yes relay was changed and I recollect there was an adjuster knob on the top. 2010 Defender 90 300Tdi CW (White/1994)
2021 Defender 90 300Tdi SW (Blue/1994)

Last edited by Cubflyer on 27th Feb 2022 5:03pm. Edited 1 time in total
Post #944016 27th Feb 2022 3:59pm
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Cubflyer



Member Since: 25 Sep 2021
Location: Suffolk
Posts: 278
United Kingdom 1994 Defender 90 300 Tdi SW Arles Blue
LandRoverAnorak wrote:
^^^

This. Your LED indicators don't provide enough load to activate the trailer light. Either fit an adjustable flasher relay and tune as Ramsay suggests or fit load resistors to the indicators (or go back to bulbs).


Hi Darren ... Thanks for your input too, will check it out later Wink

John 2010 Defender 90 300Tdi CW (White/1994)
2021 Defender 90 300Tdi SW (Blue/1994)
Post #944017 27th Feb 2022 4:01pm
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Cubflyer



Member Since: 25 Sep 2021
Location: Suffolk
Posts: 278
United Kingdom 1994 Defender 90 300 Tdi SW Arles Blue
Well yet again the wealth of knowledge on this Forum shines throught ...

A BIG thank you to all who replied Thumbs Up

Bulb tested OK so attached my trailer light board and then went to the LED light relay.

Turned the adjustment knob about a quarter turn and the "Trailer light" illuminated - Job done Exclamation

Many thanks again

John 2010 Defender 90 300Tdi CW (White/1994)
2021 Defender 90 300Tdi SW (Blue/1994)
Post #944025 27th Feb 2022 4:53pm
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