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Things to check Posted by Ari [Email]  (#2847) [Profile/Gallery]
(more from Ari) on Wed, 23 Jun 2004 06:05:37
In Reply to: Further info, JoK, Wed, 23 Jun 2004 02:35:33 Members do not see ads below this line. - Help Keep This Site Online - Signup |
OK, it's pretty obvious that you aren't getting power on one bus. This is keeping the ABS pump from running, which is why you don't have brake assist, the fluid level is high, and the lights are on. Without my manual, I'm not sure where fuse 3 goes that would drive ABS. But that doesn't mean it doesn't.
First thing to do is grab a voltmeter. On the face of the fuse you'll see two little cutouts with metal showing. This will allow you to see the voltage on the fuse even when it's plugged in. With the negative lead of the meter on something grounded (I like the ignition switch), measure the voltage on each side of the fuse. It should be 12 volts or so with the ignition ON. If you see 12 volts on one side of the fuse and 0 on the other, the fuse is bad. If you see no voltage on either side of the fuse, then the wiring to the fuse is bad. If you see 12 volts on both sides of the fuse, wiring 'downstream' of the fuse is bad.
Of course, pull the fuse out and look at the contacts in the fusebox. Make sure there are a set on both sides. It does happen where the contacts in the fusebox get pushed back and no longer make contact.
If you've got 12 volts (or so) all around the fuse, then you need to start tracing to the ABS system. An electrical schematic would help here. Obviously, there is one central point where current isn't flowing, and when you find that point common to those components, you're there. One thing I would check would be ground points. All it takes is one common ground point to lift for those components, all a bunch of things will fail.
Yeah, this isn't as nice as 'find broken wire at point X'. Stuff like this requires the schematic and some troubleshooting. But since you have a few things not working, it's pretty obvious it's going to be a bad connection somewhere common to all. A schematic and a little probing around should fix it.
posted by 192.249....
, Wed, 23 Jun 2004 08:55:21, Wed, 23 Jun 2004 06:05:37 <-- Viewing This Message, Wed, 23 Jun 2004 11:23:49
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