Member Since: 26 Apr 2011
Location: Sheffield
Posts: 2990
Fitting resistors to d4 rear lights
I have some d4 lights coming on wed, is there some guidance around on how to fit the resistors. Or is there any friendly auto electricians near me?
27th Oct 2014 8:29 pm
Narpy
Member Since: 18 Jul 2011
Location: Stockport
Posts: 7830
Sean, the resistor goes across the pos + neg on the indicator wiring.
Find the lamp which is the indicator on the loom at the back of the light. If you're competent with a soldering iron, it's very easy. Mods:
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27th Oct 2014 9:30 pm
RBP
Member Since: 29 Aug 2012
Location: N Yorks
Posts: 1936
If you don't fit resistors is it an MOT fail due to the double speed light flashing on the dash? My D4 lights have been on a few months but haven't got round to fitting the resistors yet
27th Oct 2014 9:44 pm
ronp
Member Since: 29 Nov 2006
Location: North Yorkshire
Posts: 15213
Member Since: 13 Aug 2010
Location: Wiltshire
Posts: 13906
I didn't bother with resisters. You get used to the fast flash very quickly. As for the MOT, mines been passed three times since fitting the D4 lights.
28th Oct 2014 8:46 am
Robbie
Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
Posts: 17932
Well it shouldn't have passed!Land Rover - Turning Drivers into Mechanics Since 1948
Member Since: 29 Nov 2006
Location: North Yorkshire
Posts: 15213
The fast flash generally alerts you to a bulb failure.
So if there are no resistors wired in, how do you know when a front indicator bulb has blown?I was a normal heterosexual chap, but in these new woke awakenings I now identify as a Wardrobe.
28th Oct 2014 4:31 pm
Scarab
Member Since: 11 Jun 2011
Location: Hastings
Posts: 1283
Quote:
how do you know when a front indicator bulb has blown?
By checking, the same way you do with all external vehicle lights periodically.
Relying on the vehicle to tell you is certainly not best practice.
28th Oct 2014 4:36 pm
ronp
Member Since: 29 Nov 2006
Location: North Yorkshire
Posts: 15213
What is the timespan for 'periodically'I was a normal heterosexual chap, but in these new woke awakenings I now identify as a Wardrobe.
28th Oct 2014 5:11 pm
Nubber99
Member Since: 13 Apr 2014
Location: Poole
Posts: 289
I always check mine front and rear when I'm in a traffic queue and can see the reflections in the cars in front and behind. I've got D4 lights with resistors at the rear, and LED indicators with resistors at the front, so I'd never know if one went phut with the double flash method.
28th Oct 2014 5:16 pm
Scarab
Member Since: 11 Jun 2011
Location: Hastings
Posts: 1283
ronp wrote:
What is the timespan for 'periodically'
I personally check mine weekly. It's up to the driver to ensure the lights are working so everyone must make their own judgement on what is appropriate.
28th Oct 2014 5:28 pm
ronp
Member Since: 29 Nov 2006
Location: North Yorkshire
Posts: 15213
Weekly?, very commendable.
So you've just completed your weekly external visual check of all bulbs, you jump in your car the following morning and by lunch time your front indicator bulb has blown.
You wouldn't know as you haven't fitted resistors and because of that your indicators now 'normally' flash fast.
So it's another 6 days until you carry out your next visual external check.
6 days driving around with defective lights!I was a normal heterosexual chap, but in these new woke awakenings I now identify as a Wardrobe.
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