Headlight motor woes continue

[Black Beauty]

Hi,

Last year I posted a problem that the headlights wouldn't go up and down - I received some good advice but unfortunately almost 9 months on, [&:], I'm no further on.

Where I'm at is as follows, I've:

1. Bench tested the motor and it moves as it should in situ and disconnected from the headlight mechanism - infact I brought a second one just in case there was an issue with the first, they both work.
2. Replaced the headlight switch
3. Replaced the relay, and checked it using a very helpful video on you tube
4. Checked the meter readings off of the leads into the motor and they are not like the Clarks garage, so do I have an earthing problem?
5. All of the headlights, indicators etc work as they should

So, with point 4 being the odd one out, its got to be an issue with the wiring loom so I've tried to trace it around the engine bay, but I lose it a bit, does anyone know exactly the route it takes ?

Is it a case of just replacing the 4 cables that feed into the headlight motor? Or do I replace only one?

Does anyone have any other ideas as I've done a lot of research on t'internet and can't really find anything new to try other than replacing the wiring?

Also, does anyone know of any breakers in the south east, other than the one at Pease Pottage, Sussex, where I might go and grab a few spare parts?

Thanks in advance
Desperate of Surrey!

 

[colin944]

I would use lengths of wire from the switch to the motor. Just running them out through the door and onto the motor, then if it works trace the wires through the loom and replace them.

 

[bmnelsc]

ORIGINAL: colin944

I would use lengths of wire from the switch to the motor. Just running them out through the door and onto the motor, then if it works trace the wires through the loom and replace them.

+1 for this method - but I'd also check the connector to the motor very carefully - could be corrosion in the connector or a broken wire right where the wires go into the connector (e.g. while trying with the multi-meter - try pushing the wires into the connector or wiggling them a bit and see if you get an intermittent reading more like you expect)..