ABS Light Is on[900/1993]

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ABS Light Is on[900/1993] posted by John S. on
Sunday, 6 February 2000, at 8:39 p.m.

Hey all, had to change the battery and after the car was started the ABS light was on and now doesnt go off. I checked all fuses at the fuse box, I read theres another one up by the ABS ECU? Please tell me theres another fuse to check, I fear this may be an expensive repair. What else can I check? Thanks all.
-John

Re: ABS Light Is on[900/1993] posted by abe crombie on
Sunday, 6 February 2000, at 10:50 p.m.

First, make sure the leads that attach to the bolt on the pos battery terminal are tight as one of these is the feed for the ABS modulator under hood.
Second, there is a fuse on that yr model (94 and later 900's don't have this fuse or the relay) on a relay under dash clipped to the bracket for ABS control unit. This control unit is high up on the left on 940 and over under the kick panel in right passenger's foot well forward of door on 960.
It is a 10A push in fuse.

Re: ABS Light Is on[900/1993] posted by John S. on
Sunday, 6 February 2000, at 11:11 p.m.

Thank you for this info i will check it tommorow. What would cause the fuse to blow? My audio system fuse did blow, I wonder what the deal is.
-John

Re: ABS Light Is on[900/1993] posted by abe crombie on
Monday, 7 February 2000, at 12:16 a.m.

The relay that the ABS fuse is located on blows the fuse if there is an over-voltage condition to protect from excessive voltage elvel to control unit.
The usual reason that it blows is when you jump start vehicle.

Re: ABS Light Is on[900/1993] posted by Jim Bowers on
Monday, 7 February 2000, at 10:18 a.m.

Another possible source of system overvoltage is a loose battery cable. If the cable disconnects, even for a few tousands of a second, while the alternator is charging, the alternator output voltage will jump to a very high value, usually killing the alternator diodes also. --
Jim Bowers, Danvers, MA, 96 965, 65K, Had a '85 745 Turbo diesel for 200K

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