Porsche Enthusiasts Club Forum

Hit my 1st issue with the 928 last night.

Have noticed the ABS light come on when driving previously. Switching engine off and back on has cleared it the couple of times it happened.

Last night it came on, switched off engine, switched back on and still light on. Tried again, same thing so drove it the half mile to missus' house and switched it off and left it for a few hours. Went out to try it few hours later and the battery was dead.

Could hear a motor running constantly even with ignition off and found the ABS unit to be buzzing.

Have read up on the sensors etc but i'm thinking it's probably the relay stuck on due to the constant current draw, even with ignition off.

Couple of questions :

1) Would a 944 2.5 have the same ABS relay? My mate has one in his garage i could borrow the relay to test.

2) Can see 2 different kinds on ebay and the like for replacement, black and grey. Is the grey the later version and the one i would need on a 90 S4 digi dash?


Cheers,
Olie

Hi there,, I had a problem with my headlight relay where main beam would not come on, I had a spare so I swapped it and it worked so I decided to see if I could fix the old broken one by dropping it on the floor from about 3 feet (onto concrete ) Put it back in and it worked!! If you are committed to replacing the relay give it a go you never know it might work for you!

Good luck Jezzy


Disclaimer ... If car goes up in flames its not my fault!!! Lol

Ha, i like your style.

I'll strip it back and have a look at what condition it's in.

If i remove it completely , i assume the car will run fine just minus the ABS?

Well there u go, it was the outer relay ontop of the abs unit. Just removing and replacing it was enough to unstick it.

Will see how it goes but I know which one I need if it goes again.

Seems a good shake cures nearly everything