Pete
'09 C5 high-level brake light.
Moderator: RichardW
-
milleplod
- Posts: 273
- Joined: 02 Sep 2016, 19:53
- Location: Bolsover, home of the Beast, and Corrèze.
- My Cars: 2009 Citroen C5 2.0HDi Exclusive Tourer
(Previously, in order....Dyane, 2CV6 x 3, Visa 1.7D, GSA estate, GS Pallas, CX TurboII, Picasso...all fondly remembered!). - x 15
'09 C5 high-level brake light.
Quick query chaps! Having fixed the snapped wires near the tailgate hinge, I'm now waiting for a new light unit as the current one only has one or two of the LEDs working. When the brake pedal is pressed, the LEDs are flickering, sometimes they're on fully but still not very bright at all. Is this simply indicative of a failing unit (I've read about moisture getting into it and wrecking the circuit board), or is it something more ominous, such as another wiring fault somewhere?!
Pete
Pete
Nocto Diuque Venamur.
-
myglaren
- Forum Admin Team
- Posts: 25479
- Joined: 02 Mar 2008, 13:30
- Location: Washington
- My Cars: Mazda 6
Ooops.
Previously:
2009 Honda Civic :(
C5, C5, Xantia, BX, GS, Visa.
R4, R11TXE, R14, R30TX - x 4922
Re: '09 C5 high-level brake light.
Can you feed it 12V with it detached from the loom to check the flickering?
It has been mentioned in some older threads that is is often the resistor(s) that fail and replacing them restores the unit to normal operation.
It has been mentioned in some older threads that is is often the resistor(s) that fail and replacing them restores the unit to normal operation.
-
milleplod
- Posts: 273
- Joined: 02 Sep 2016, 19:53
- Location: Bolsover, home of the Beast, and Corrèze.
- My Cars: 2009 Citroen C5 2.0HDi Exclusive Tourer
(Previously, in order....Dyane, 2CV6 x 3, Visa 1.7D, GSA estate, GS Pallas, CX TurboII, Picasso...all fondly remembered!). - x 15
Re: '09 C5 high-level brake light.
I'm now a dab hand at removing the rear spoiler - I did it again today, just for the sake of it!
- so I might give that a whirl tomorrow just so I'm not worrying about a non-existent loom fault! How does the light come out of the spoiler, I couldn't figure it out and was frightened of breaking something if I pushed/pulled too hard the wrong way!Pete
Nocto Diuque Venamur.
-
GiveMeABreak
- Forum Admin Team
- Posts: 37419
- Joined: 15 Sep 2015, 19:38
- Location: West Wales
- My Cars: C3 Aircross SUV HDi Flair Peperoncino Red (The Chili Hornet)
C5 X7 2.0 HDi Exclusive Mativoire Beige (The Golden Hornet)
C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
C5 MK II 2.0 HDi Exclusive Obsidian Black
C5 MK I 2.0 HDi SX Wicked Red
Xantia S2 2.0 HDi SX Hermes Red
C15 Romahome White
XM 2.0 Turbo Prestige Emerald Green Pearlescent
XM 2.0 Turbo Prestige Polar White
XM 2.0 SX Polar White
CX 20 Polar White
GS 1220 Geranium Red
CX 2.4 Prestige C-Matic Nevada Beige
GS 1000 Cedreat Yellow - x 5741
Re: '09 C5 high-level brake light.
It seems symptomatic of when there isn't enough resistance as Steve says - and may also be due to the other failed LEDs in the circuit - so I guess it depends how they are wired up.
Please Don't PM Me For Technical Help
Marc
Marc
-
myglaren
- Forum Admin Team
- Posts: 25479
- Joined: 02 Mar 2008, 13:30
- Location: Washington
- My Cars: Mazda 6
Ooops.
Previously:
2009 Honda Civic :(
C5, C5, Xantia, BX, GS, Visa.
R4, R11TXE, R14, R30TX - x 4922
Re: '09 C5 high-level brake light.
milleplod wrote: ↑08 Nov 2017, 17:36
I'm now a dab hand at removing the rear spoiler - I did it again today, just for the sake of it!
Pete
Couldn't say how you get access to the LEDs - mine is just bulbs so different from more recent models.