Technical 2003/4 Ducato Electric headlight levelling problem.

Currently reading:
Technical 2003/4 Ducato Electric headlight levelling problem.

Penquin

New member
Joined
Aug 25, 2015
Messages
9
Points
3
Help needed, please….

I have a Ducato 2093/4 converted by Swift into a motorhome, now registered in France. Last week it failed its Contrôle Technique due to the headlamps. They were discoloured and had cracks, so the dipped beam was outside the acceptable spread by 3.9%

Fiat no longer mark the headlight units as available and tgere is no likelihood of them making/getting more (fortunately, as I was quoted 996€ just for the headlight units. Ouch !

I bought two units from AUTODOC which fit perfectly and I now have them adjusted to below the required level, but the electric levelling does not work.

Various places suggest they are fused separately but are wired into the left hand dipped beam, with a supplementary fuse for just that circuit. Both dipped beams work perfectly (the difference in clarity is startling over the old units !), so it cannot be a blown fuse controlling the dipped left beam as is often quoted.

Does anyone know which fuse this might be and where it is located ? I can remove the rotary switch on the dashboard, which has three wires - presumably +ve, -ve and the signal wire as it is basically a potentiometer that has to be balanced at the motor end.

If anyone can give advice, I would be very grateful, to say the least ! Red wine to share is always available here if successful help can provide a link up !
 
Help needed, please….

I have a Ducato 2093/4 converted by Swift into a motorhome, now registered in France. Last week it failed its Contrôle Technique due to the headlamps. They were discoloured and had cracks, so the dipped beam was outside the acceptable spread by 3.9%

Fiat no longer mark the headlight units as available and tgere is no likelihood of them making/getting more (fortunately, as I was quoted 996€ just for the headlight units. Ouch !

I bought two units from AUTODOC which fit perfectly and I now have them adjusted to below the required level, but the electric levelling does not work.

Various places suggest they are fused separately but are wired into the left hand dipped beam, with a supplementary fuse for just that circuit. Both dipped beams work perfectly (the difference in clarity is startling over the old units !), so it cannot be a blown fuse controlling the dipped left beam as is often quoted.

Does anyone know which fuse this might be and where it is located ? I can remove the rotary switch on the dashboard, which has three wires - presumably +ve, -ve and the signal wire as it is basically a potentiometer that has to be balanced at the motor end.

If anyone can give advice, I would be very grateful, to say the least ! Red wine to share is always available here if successful help can provide a link up !
Hi,
eLearn only shows the dipped beam fuse as supplying the level adjusters. As both adjusters are shown as working in parallel from a single control, I suggest disconnecting each side in turn, which may help to localise the fault. Applicable eLearn diagram attached.
 

Attachments

  • eLearn E3080 Headlamp Adjustment.pdf
    55.3 KB · Views: 8
Hi,
eLearn only shows the dipped beam fuse as supplying the level adjusters. As both adjusters are shown as working in parallel from a single control, I suggest disconnecting each side in turn, which may help to localise the fault. Applicable eLearn diagram attached.
May I add that the description, which judging from your post may have already, can be seen here.
 
Thanks for those links, Fuse F13 seems to control the crucial left hand dipped headlamp, my headlamp is on and there is no response with two brand new headlights, neither is moving, sadly.

One link says there is a dedicated fuse under the dash, but I have yet to find it and it is not indicated on the wiring diagram.

Sadly, the component location is obviously influenced by someone in authority - it is heavily redacted !

I will have to keep identifying and trying to find appropriate relays etc., as my next target !
 
Thanks for those links, Fuse F13 seems to control the crucial left hand dipped headlamp, my headlamp is on and there is no response with two brand new headlights, neither is moving, sadly.

One link says there is a dedicated fuse under the dash, but I have yet to find it and it is not indicated on the wiring diagram.

Sadly, the component location is obviously influenced by someone in authority - it is heavily redacted !

I will have to keep identifying and trying to find appropriate relays etc., as my next target !
 
@Penquin if dipped beams are illuminating, the relay T02 is OK. Also if F13 was faulty, you would lose the LH LHS dipped beam. I notice from the diagram E3080, that there is a separate earth wire for the adjustment mechanism.

@Penquin have you overlooked conversation message?
 
Back
Top