Rear Fog not working V6

[wildrobot]

Hello,

So Guffrey failed his MOT today due to the rear fog not working (amongst other things)

Annoyingly the rear fog has never worked since i've owned it (3 years) and hasn't failed due to this before.

So, it's located in the reverse light housing and the red bulb is fine. (not one of those dangly ones that site under the bumper)

Any idea on things i can check and where to find them?

Cheerios x x

[wonkanoby]

japanese dont use fog lamps,so its diy usually by the importer,so you need to trace back the wiring with a multi meter

[Bob]

Are you turning the headlights on as well?

If needed it's a simple job to just run a new wire, but as suggested you need to check where the power stops.

There may well be an inline fuse somewhere, too.

If you don't have a meter something like this will do:

https://www.ebay.co.uk/i/262890821982?c ... 7704778984

Any car shop will have similar.

[wildrobot]

Yeah I've tried all the different combos! The buttons are to the right of the steering wheel, one is an one/off switch with a light on the switch and the other is a classic fog light button with a symbol on it.

I think there is an electrical fault with the main beam too, as that failed the mot too but seems intermittent I'm going to take it to a bongo garage in shoreham today as i don't have any confidence with electrics

[wildrobot]

So.... lots of beard scratching going on...

The bulb definitely works!

I've completely removed the bulb socket and tested it on the battery that works too

I've run power from the back of the switch to the bulb connector, then earth the connector and the switch light turns on but not the bulb

This is whilst the lights are on and the meter showing power.

I don't understand why the bulb would not turn on even tho it's receiving power.

Tested it on the negative battery point to with my new power going into it still doesn't work

[Bob]

I can only think the bulb isn't making contact with the holder, either the lead positive contact or the body earth.

Worth trying a different bulb, and try sticking a small screwdriver into the holder with the bulb in place. That should check the earth, and visualy check the lead contact. This sometimes wears away but can be built up with solder.

[wildrobot]

Yeah I've tried the reverse bulb and the fog bulb, I ran the bulb connector from the positive to negative on the battery and it lights up fine

I ran the new power wire through the bulb connector to negative battery and that does not light it or running it to earth

[wildrobot]

So by unscientific means the problem is solved....

I put all the wiring back to original state

On the back of the switch is a thick red lead that ran to the back of the bongo and light unit. I moved this to the contact prong next to it which had nothing on and hey presto the fog light works!

Thanks for all your suggestions! Only spent 6 quid on wire and tape!!!

[Bob]

Result.

And thanks for letting us know.