Headlight electrical gremlins

[steve j]

Having purchased new headlights, I`ve recently connected and fitted them only to find, no lights. Further investigation reveals no tail lights either, I`m going to start fault finding but where is the dim dip module on an S2 ? Can anyone shed some light on this, pun intended

[magpies]

I;m pretty sure it's all up around the steering column, I think that's where I found and removed mine

do you have the wiring diagram?

[steve j]

magpies said:

I;m pretty sure it's all up around the steering column, I think that's where I found and removed mine

do you have the wiring diagram?

Hello Magpies, yes, I`ve got the bible with the wiring diagram in it. I`ve only had a quick check so far. No voltage at the light connectors or at the fuze.

[DamianS3]

On my S3 the dim dip was up with the fuse box on the passenger side, a small black metal box with heat sink fins on.

It can just be unplugged.

However I'm curious as to why you suspect this? Did the lights work ok before you replaced them? Assuming they are the same basic type they shoul just plug in. I would check the connector and replace if required they can corrode badly.

While you are at it I would check the earth at the headlamp end.. Mine were terrible so I renewed and it made a huge difference.

Good luck

Damian

[ukflyboy]

Another vote here for the connector. I had issues with my headlights turning off on full beam the other week however, a quick shower of contact cleaner around the connector (down by the RHS wheel arch) and all was healed! Don't think that would explain your tail light problem though...

[v8s4me]

You have checked the fuse haven't you?

[steve j]

DamianS3 said:

On my S3 the dim dip was up with the fuse box on the passenger side, a small black metal box with heat sink fins on.

It can just be unplugged.

However I'm curious as to why you suspect this? Did the lights work ok before you replaced them? Assuming they are the same basic type they shoul just plug in. I would check the connector and replace if required they can corrode badly.

While you are at it I would check the earth at the headlamp end.. Mine were terrible so I renewed and it made a huge difference.

Good luck

Damian

Hi Daiman, the lights were working before I replaced them, I had one sidelight bulb that failed. So as the lights were showing signs of rust I decided to replace them. I`ve got the wrong item in mind, it should be the relay that I suspect, the wiring diagram is not to clear for my old eyes

[steve j]

v8s4me said:

You have checked the fuse haven't you?

Hi Joe, yes, of course, but I have no 12v at the fuse, so further investigation is required

[v8s4me]

Do you have power at the switch on the steering column? If you haven't already done so take this off and give the contacts a clean, and check your supply to the terminals on the ignition switch while you're in there. If you still have the dreaded yellow connector, check that as well. Pull it apart because it might look OK on the outside but be toast inside.

[steve j]

v8s4me said:

Do you have power at the switch on the steering column? If you haven't already done so take this off and give the contacts a clean, and check your supply to the terminals on the ignition switch while you're in there. If you still have the dreaded yellow connector, check that as well. Pull it apart because it might look OK on the outside but be toast inside.

Thanks Joe, the dreaded yellow connector was chopped out some years ago, I have indicators so I think the ignition switch is fine, when I have some spare time I`ll check out the system from the headlight switch, relay, fuses etc, thanks.