Common faults

[J40k-mo]

Any common faults for this....

Driving down the road and lights flickered, abs light and battery light came on, battery light went off and abs stayed on, then the battery light comes back on every now and again then goes off, still starts and runs okay

Anyone help?

[AdamB]

First thing would be to check the battery voltage, and the alternator, makes sure its charging the battery.

[morgey]

Id be checking earths as well

[J40k-mo]

All charging and everything looks to be in place and all okay, no one had a similar problem?

[FrozenJakalope]

I'd be looking at the alternator. I've just had a look through a bunch of wiring diagrams and there's no common earth for the headlights, any one ABS sensor and the battery/alt. If the voltage regulator in your alternator's gone or going though, that could cause all manner of fucked-upedness with your electronics. You could always take it to National Tire or somewhere similar and have them test it, it's free and you can tell them to eff off if they try to sell you anything after you've got the result.

[J40k-mo]

Thanks pal all charging and alt looks okay and so do wires, I have got another alt so I will try that n see what happens, any common faults with a knock sensor for eml light?

[FrozenJakalope]

Not that I can see on the diagrams. Don't suppose you get a useful fault code reading, do you?

[J40k-mo]

Turns out it was the altenAtor over charging at 18 volts! When the battery light came on, hard one to find with the battery light only coming on now and again! But the altenAtor started smoking and could smell burning so deffo one to remember so you don't set car on fire! Haha

[FrozenJakalope]

Hahaha, yep, that's a pretty good indicator of a fault. Glad you pinned it down mate