No main beam

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My Name: invictus

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Hi all
First time poster in need of advice :!:
For no apparent reason i`ve lost main beam on both headlights this weekend. The fuses are both good and i`m assuming that because it`s both sides that it`s not a bulb problem. Is there a relay on the circuit and can anyone offer any advice on how to check the relay to see if it works.
I`d really like to sort the problem out before i put myself into the hands of an auto electrical specialist, but i`m on nightshifts midweek so really need to get done by then.
Any advice very much appreciated.
Cheers
Alex
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My Name: C3driver52

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Posts: 1940
Joined: Sat Apr 30, 2011 7:40 pm
Model: C3 2002-2005, Original shape model
Year: 2003 (03)
Engine Size: 1.4 i
Fuel Type: Petrol
Mileage: 79984
Trim Level: VTR+
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: TU3 (75 PS)
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Hello invictus

Can I suggest you replace both F11 (10A) and F12 (10A) in the engine bay fuse box. They are mini blade fuses, cost pence and a visual inspection my not show up a problem. (F11 and F12 are MAIN BEAM or HIGH BEAM or BLUE light on Dashboard)
C3 fuses
C3 fuses
Citroen C3 2002 fuse box locations

Its the pinky coloured one and the red 10A above it (yes, they should both be RED, but the pink one is a 10A)

Dipped beam (normal driving lights or Green light on dashboard) are F9 and F10 both 15A (the 2 blue fuses at the bottom of the picture)

If the fuses don't cure it, try another bulb, you only need to attach the power connector to the lamp without fitting it to the headlamp to prove the circuit (I say this to save time fiddling with the clips). Its not uncommon for 2 bulbs to blow.

If both of these are fruitless, then the relay is supposed to be in the fusebox in the engine bay. You may be able to hear it clicking while operating the high beam with the engine not running. But I have not seen it yet.

Do you get the blue tell-tale light on the dash?
My Name: invictus

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Joined: Sun Jan 15, 2012 7:18 pm
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Hi C3driver52
After reading your reply i suddenly realised that i`d actually posted the wrong info, it`s the dipped beam that`s not working on my car :oops: :oops:
I removed F9 & F10 fuses and tested them with my meter ( both have continuity ) I will remove one of the bulbs today, although i had a go yesterday and cannot believe how difficult it is. I`ll just connect to the new bulb and check the results.
Thanks for the info regarding the relay, i`ll try and identify that today and check whether it`s working ok.
Regards
Alex
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My Name: C3driver52

Guru
Posts: 1940
Joined: Sat Apr 30, 2011 7:40 pm
Model: C3 2002-2005, Original shape model
Year: 2003 (03)
Engine Size: 1.4 i
Fuel Type: Petrol
Mileage: 79984
Trim Level: VTR+
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: TU3 (75 PS)
Has thanked: 114 times
Been thanked: 67 times

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I will remove one of the bulbs today, although i had a go yesterday and cannot believe how difficult it is
I agree, if you don't have to remove it, then don't as getting them back in is a pain.

Also, refitting the heart shaped cover is critical to avoid the headlight filling with water/fogging up.
Some pictures showing that important headlight cover is here that may be useful for you.

Its easier to grab a spare and connect that (avoid touching the glass at all times and it gets HOT, avoid melting stuff)

I didn't realise you had a meter, well, if it can do 12v DC then pull off the dipped beam connector from the lamp (leave the lamp clipped in) and put one of the probes into each of the plug connections (probably brown wire and blue wire), then try switching on the lights. This will quickly prove the circuit right up to the lamp and potentially save having to find the relay.

Do you get the green tell tale picture of a bulb on the dashboard when you switch on the lights?

If you have the automatic lights, sometimes they get confused/confusing and go off when they should be on and on when they should be off.
My Name: invictus

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Joined: Sun Jan 15, 2012 7:18 pm
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Crisis over :D
C3driver52 you were right, both bulbs had blown. Decided to stick a digital camera in the aperture and take a snap of what i was dealing with. Much easier to remove once i knew what the bulb retainer looked like, 2 mins to get out and 4 to refit ( in -4 temperatures as well :D )
Thanks for all the advice
Alex
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