Headlights

[roger]

I've been trying on and off for the last few days to get nearside headlight to work on dim or dip. (1994 Micra)
Drivers side works
Fuse Okay
Bulb okay
Checked switch unit in steering column with meter, shows circuit with circuit tester but no voltage out of unit on either main or dip beam wires,
Voltage is entering column unit.
Voltage exists on opposite side of fuse.

Is there another unit between column switch and lights ?

Why are near and drivers lights different ? and the near side has no direct
earth connection?

I have considered wiring near and drivers side lights together as they are on
15 amp fuses

Is this a good (or very bad) idea

Your help greatly appreciated

Rog

 

[curtis]

what about the relay, to switch from dipped to highs or sides?

 

[roger]

A relay is not shown on the wiring diagram unless you have driving lights

If it has one where is it on the car ?

Roger

 

[frank]

hi roger

i think the headlights run in series when you,ve got the sidelights on and ignition on (6v each)
its usually a corrosion problem (bulb connector or underbonnet fuseholder)

 

[roger]

But if they ran in series when one stoped working so would the other.
The drivers side works fine (and has its own feed from the column switch)

Roger

 

[Suze]

my offside headlight on dipped is causing issues at the moment - believe it's because at the MOT the garage put a 25amp fuse in instead of the 15amp fuse. Bulb etc all fine, but where the 25amp fuse melted it's made a real mess of the fusebox so looking for a new one.....

Is a right pain because fiddling with the fuse tends to get it working so am doing that each time I drive it whilst waiting for the part.

Might be worth checking the underbonnet fuseholder?

 

[frank]

roger

on mine if you put the sidelights on, the little bulbs show, then if you turn the ignition on the dipped h/lights come on at 6v, so i assume the wiring can,t be straight forward (ie 1 earth and 1 live ?)

 

[roger]

Frank, yours sounds like an earthing problem.

Suze, I've checked fuse box, this seems okay and since power gets to column
switch then this side of circuits looks okay.

Roger

 

[98twister]

Roger,

There is a dim/dip unit that runs the nearside lamps.
Have a look at this
http://www.automotiveforums.com/vbulletin/showthread.php?p=4102443

I fixed this problem on our 96 Micra before reading the above and did it by taking a feed from the working headlight and using 2 relays.

 

[roger]

Thanks, that makes sense I'll look this weekend


Roger