DSC, ABS, and brake light on highway

[Big "J"]

Originally Posted by Qsilver7

If you can't find Slick's instructions...you can use the ones I've posted before below: (e38/e39/e53 high instrument clusters are all designed the same and work the same way)

OBC TEST 9 will give the battery's voltage (when ignition is in position 1 or 2)...and will give the alternator/charging system voltage when the engine is running. Since all accessories are running when ignition is in position 2 (versus 1)...you should see the battery's voltage drop faster if you're monitoring battery voltage only.



If for some reason you have the low instrument cluster (uses the GRAPHIC display for check control and only has ONE button (left side of cluster)...the UNLOCK procedure and display of TESTs is slightly different...click this link and scroll down and click on the LOW CLUSTER thumbnails : http://www.cardomain.com/ride/313409...series/page-6/

Update....

Unlocked the cluster and with engine running, a/c max, lights on and radio on, my voltage is 11.2 - 11.4. I believe my alternator is toast? I'll be getting another this evening to install. I hope this solves most if not all of my ABS/ DSC issues!

Thanks for the tip and help guys!!