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blackedrrs



Member Since: 14 Mar 2019
Location: Windsor
Posts: 9

United Kingdom 
Indicator/DRL lights not working after jump start

Hi Guys, wondering if any of you can help me. Last night I got in my car (L494 RRS) after not having driven it for a few days to find that I had a flat battery. While it was cranking over the lights all kept flickering. I managed to jump start the car with my wife's car, however, during the drive I noticed the left indicator was flashing really fast.

After parking up I tested all the lights and the front passenger indicator and daytime running lights no longer work. I looked through all the relevant fuses in the 3 fuse boxes but couldn't find anything related to indicators or DRL.

I understand that both these lights are LEDs. Could I have blown the LEDs in which case the whole headlamp would need to be replaced or is there a fuse/relay somewhere I can check. I do not have a relay diagram.

Any help would be appreciated as I am fearing the worst case right now.

Post #596932 Tue Mar 24 2020 2:44pm
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scarey



Member Since: 07 Jan 2011
Location: in the cloud
Posts: 270

i think its the BCM that controls the lights but i'd do a battery disconnection first and see if it re-boots everything..

Post #596938 Tue Mar 24 2020 4:23pm
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Brit Plumber



Member Since: 05 Jan 2018
Location: Sleaford, Lincolnshire
Posts: 1624

England 2012 Range Rover Sport Supercharged Autobiography Fuji White

Before you do anything, give the battery a full condition/charge as a low charge cause these issues even after jumping. It could also be that your battery is shot and needs replacing. 2012MY RRS 5.0 Supercharged Autobiography (Current)
Mods:
TPMS (Complete)
Genuine LR DRLs (Complete)
Remote Boot close from key fob (Complete)
2016 Discovery 4 Mirrors AKA RRS2 (Complete)
2014 L405 Surround Camera retro fit (WIP)
2013 RRS Dual View Screen fit (Complete)
2016 LR4 RSE (Complete)
2014 LR4 Homelink (Complete)
2016 FFRR Electrochromatic Wing Mirror Glass (Complete)

67 plate Focus ST Line (Current)
1942 VEP Ford GPW Jeep (Willys) (Current)

Post #596980 Wed Mar 25 2020 4:59am
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Red Arrow



Member Since: 06 Jun 2017
Location: Scotland
Posts: 255

United Kingdom 

I had a similar issue and it was the earth strap onto the headlight under the wheel arch Thumbs Up
I have a spare headlight control module if required

Post #596986 Wed Mar 25 2020 10:39am
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blackedrrs



Member Since: 14 Mar 2019
Location: Windsor
Posts: 9

United Kingdom 

Thanks for those suggestions guys. I will am about to order a new battery and will be putting it in as I still have the low battery warning. I'm hoping this will resolve the issue. Will report back.

Post #597014 Wed Mar 25 2020 6:24pm
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scrumps



Member Since: 01 Aug 2011
Location: Somerset
Posts: 275

United Kingdom 

Hi,

I had a low battery warning on my last L494 AB. When LRA turned up it took him about 30 secs to work out the earth strap on the battery under the spare wheel was loose.

Tightened up, one decent run later and problem never reappeared.

My 10p.

Scrumps. Somerset - Where the apples do grow and the cider do flow!
2020 Defender 90 D240 HSE in Tasman with white roof - on order.
19MY SDV6 AB - Byron Blue.
17MY D5 3.0 HSE - Firenze Red - Gone
16MY SDV6 AB -Aruba Silver - Gone - I wish I could have kept it.
13.5MY SDV6 "HSE Black" - Baltic Blue - Gone and sadly missed.
10MY TDV8 HSE Galway Green - Gone
14MY D4 HSE in Scotia Grey - Gone
05 TD5 D90 CSW in Cairns Blue

Post #597024 Wed Mar 25 2020 10:41pm
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blackedrrs



Member Since: 14 Mar 2019
Location: Windsor
Posts: 9

United Kingdom 

New battery arrived today so will be installing it tomorrow. My plan is disconnect the existing one and leave it a few minutes to do the 'reset' and also check the earthing strap. Although my battery is about 6.5 years old which tends to be the life of the average battery so it is due for a change anyway.

Is there anything else I need to be mindful of when changing a battery? I know the basics like disconnecting negative first and connecting back last. Seen a guide on youtube and access looks fairly straightforward.

Post #597077 Fri Mar 27 2020 4:45pm
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LandPhil



Member Since: 10 Feb 2015
Location: Suffolk
Posts: 190

United Kingdom 2013 Range Rover Sport SDV6 HSE Ipanema Sand

New batteries are not necessarily fully charged so it is recommended that you put the new battery on charge over night (at least) before you install it.

When installing it unlock the car and open the bonnet, then leave it for 20 min or so to enable the car to completely shut down all its systems, then change the battery, neg first etc. You will have to reset the windows and sunroof if you have one.

If you search on here you will find chapter and verse if you need it.

PS its bloody heavy!

Post #597078 Fri Mar 27 2020 5:04pm
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scarey



Member Since: 07 Jan 2011
Location: in the cloud
Posts: 270

this will help,

https://www.fullfatrr.com/forum/post67804.html#67804

Post #597079 Fri Mar 27 2020 5:06pm
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blackedrrs



Member Since: 14 Mar 2019
Location: Windsor
Posts: 9

United Kingdom 

Good news and bad news. Good - manage to fit the battery and go no adverse affects. Windows and sunroof worked as normal.

Bad - my initial problem with front left drl and indicator not working still exists even though I did a hard reset by touching the positive and negative wires together for 30 seconds.

I need to check the earthing strap thats in the wheel arch for that headlight. But does anyone have any other suggestions on what else it would be? Could this just be a case that the LEDs are blown inside the headlight?

Post #597099 Sat Mar 28 2020 1:57pm
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blackedrrs



Member Since: 14 Mar 2019
Location: Windsor
Posts: 9

United Kingdom 

Another thing I have just noticed is the the DRL are no longer on automatic on the working side. They can be manually tunred on so do work on the drivers side.

These symptoms seem to be pointing to the BCM being faulty. Any ideas where this is located and if it can be reset?

Post #597101 Sat Mar 28 2020 3:16pm
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Brit Plumber



Member Since: 05 Jan 2018
Location: Sleaford, Lincolnshire
Posts: 1624

England 2012 Range Rover Sport Supercharged Autobiography Fuji White

The BCM is behind the glovebox, there’s not much you can do as it’s solid state. Have you read any DTCs? 2012MY RRS 5.0 Supercharged Autobiography (Current)
Mods:
TPMS (Complete)
Genuine LR DRLs (Complete)
Remote Boot close from key fob (Complete)
2016 Discovery 4 Mirrors AKA RRS2 (Complete)
2014 L405 Surround Camera retro fit (WIP)
2013 RRS Dual View Screen fit (Complete)
2016 LR4 RSE (Complete)
2014 LR4 Homelink (Complete)
2016 FFRR Electrochromatic Wing Mirror Glass (Complete)

67 plate Focus ST Line (Current)
1942 VEP Ford GPW Jeep (Willys) (Current)

Post #597112 Sun Mar 29 2020 12:11am
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blackedrrs



Member Since: 14 Mar 2019
Location: Windsor
Posts: 9

United Kingdom 

It's not throwing any DTCs that I can read with my standard diagnostic tool. Is this more of a dealer job to read those codes?

Post #597115 Sun Mar 29 2020 1:06am
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Brit Plumber



Member Since: 05 Jan 2018
Location: Sleaford, Lincolnshire
Posts: 1624

England 2012 Range Rover Sport Supercharged Autobiography Fuji White

I would have thought a generic reader would give you some DTCs but maybe not very specific ones. 2012MY RRS 5.0 Supercharged Autobiography (Current)
Mods:
TPMS (Complete)
Genuine LR DRLs (Complete)
Remote Boot close from key fob (Complete)
2016 Discovery 4 Mirrors AKA RRS2 (Complete)
2014 L405 Surround Camera retro fit (WIP)
2013 RRS Dual View Screen fit (Complete)
2016 LR4 RSE (Complete)
2014 LR4 Homelink (Complete)
2016 FFRR Electrochromatic Wing Mirror Glass (Complete)

67 plate Focus ST Line (Current)
1942 VEP Ford GPW Jeep (Willys) (Current)

Post #597119 Sun Mar 29 2020 5:30am
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