Click here to return to the home page.
Image of a road.
Who's Online Now
10 members (JMcL, John Winn, MartinB60, Davetherave, Hamwich, Graham, G4FUJ, gomog, MartO, Robbie, Alan Patterson), 217 guests, and 82 robots.
Key: Admin, Global Mod, Mod
Top Posters(30 Days)
+8Rich 79
Newest Members
Scot_SJI, Jimmers, Breen60, Davidmog, Stevecarr
9,596 Registered Users
Newest Topics
Cars and boats vid
by Luddite - 04/09/26 09:04 AM
Boats alongsidish last night
by +8Rich - 03/09/26 11:57 PM
Steering bearings
by Ricosan - 03/09/26 06:30 PM
Tyres for 1990 +8
by CJB - 03/09/26 11:16 AM
2018 Sigma 4/4 ride height
by Neville1 - 02/09/26 09:10 PM
CX moaners
by Malachy - 02/09/26 01:20 PM
Plus 4 Steering rack gaiter
by Strathaven - 02/09/26 12:42 PM
Latest Photos
Wales
Wales
by Joske Vermeule, September 1
tow bar
tow bar
by G Walker, August 24
Prescott double anniversary
Prescott double anniversary
by CooperMan, August 18
Air Crash Sites: Cairngorms
Air Crash Sites: Cairngorms
by RedThree, August 13
Four-seater luggage rack
Four-seater luggage rack
by Soleng, August 9
Forum Statistics
Forums39
Topics49,871
Posts837,682
Members9,596
Most Online1,063
Jun 14th, 2026
Today's Birthdays
Rudolf
Previous Thread
Next Thread
Print Thread
Page 2 of 2 1 2
Joined: Nov 2015
Posts: 8,684
Likes: 493
Just barreling along
Needs to Get Out More!
Offline
Just barreling along
Needs to Get Out More!
Joined: Nov 2015
Posts: 8,684
Likes: 493
John, when they did go off before the fault was this like a delay timer after the door was shut ?

I've noticed some 2018 models have a delay which must mean the circuit is fed from a lighting module canbus (like a mini ecu)


Jon M
Joined: Dec 2016
Posts: 19
Donjohn Offline OP
New to Talk Morgan
OP Offline
New to Talk Morgan
Joined: Dec 2016
Posts: 19
Yes you are right Jon I do recall a say 20 second or so delay when the doors were closed before the lights went out. Excuse my lack of technical know how but does that mean I could be looking for a fault in this lighting module canbus and how do I rectify that, do I simply purchase a replacement , do I find it in the fuse compartment?

John 2016 GDI Plus 4

Joined: Nov 2015
Posts: 8,684
Likes: 493
Just barreling along
Needs to Get Out More!
Offline
Just barreling along
Needs to Get Out More!
Joined: Nov 2015
Posts: 8,684
Likes: 493
John,

On the later cars it is a metal box about A5 in size usually just laid flat in the fuse & relay box, it's called the 'body control unit' and is full of electrickery best left alone, within this is a 'interior light control' which will be the delay timer which I suspect has failed

One thing worth checking is ALL the fuses as the BCU has lots of internal connections dealing with light circuits & as LED's will run off such a tiny ampage a blown fuse to a seamingly unrelated light may still be enough to backfeed a supply

I think your fusebox top should be labelled, but this should help too...
FUSE IDENT BODY
1 = HAZARDS 10A
2 = SIDE LIGHT SWITCH 10A
3 = POWER SKT / MAP LIGHT 15A
4 = RADIO / COURTESY LIGHT / CLOCK 10A
5 = BODY CONTROL UNIT 2A
6 = RADIO / HORN ACC 10A
7 = BODY CONTROL UNIT 5A
8 = BODY CONTROL UNIT / FROSTAT 7.5A
9 = REAR / FRONT FOG 15A
10 = HEATED SCREEN 15A
11 = HEATER 10A
12 = WIPERS 10A
13 = INDICATORS / HEADLIGHTS 15A
14 = REVERSE / BRAKE LIGHTS 15A
15 = MAIN BEAM O/S 10A
16 = MAIN BEAM N/S 10A
17 = DIPPED BEAM O/S 7.5A
18 = DIPPED BEAM N/S 7.5A
19 = O/S SIDE LIGHTS & DASH ILLUM 7.5A
20 = N/S SIDE LIGHTS & NO. PLATE 7.5A

One final point is that a 2016 car should still be under warranty ?


Jon M
Joined: Jul 2007
Posts: 27,817
Likes: 749
Member of the Inner Circle
Offline
Member of the Inner Circle
Joined: Jul 2007
Posts: 27,817
Likes: 749
I would get it to a dealer under warranty. I am on my second PCB board in 5 years of ownership in my car. They cost £500 plus VAT and for now the lights are wired on permanently as otherwise I have no indicators etc.

This sounds expensive.


JohnV6
2022 CX Plus Four
2025 Renault Scenic Alpine etech "Yvette"
Joined: May 2018
Posts: 185
B
L - Learner Plates On
Offline
L - Learner Plates On
B
Joined: May 2018
Posts: 185
In the mean time you could take the bulb out.

Joined: Jul 2007
Posts: 27,817
Likes: 749
Member of the Inner Circle
Offline
Member of the Inner Circle
Joined: Jul 2007
Posts: 27,817
Likes: 749
In the good old days here was no fancy panel (or rubber sheet as in my Roadster) under the dash hence if you left the lights on the light pollution provide the light.


JohnV6
2022 CX Plus Four
2025 Renault Scenic Alpine etech "Yvette"
Page 2 of 2 1 2

Moderated by  TalkMorgan 

Link Copied to Clipboard
Powered by UBB.threads™ PHP Forum Software 7.7.5