If you are talking about an early '90's Deville, I believe there is an ABS module under the front passengers seat, but it requires a special scanner.

 

How do I get to the abs codes in lost

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start with the year - make - model of the car

 

I went into his old posts - he drives a 1994 Deville 4.9. Profile updated.
Post #6

1994-1995 aftermarket radio replacement for 1995 Deville...

Hello again, Thanks again for all your help relating to my tune up and key questions. I come to you with a third question. For those of you that have a non bose/Active Audio 1994 -1995 Deville with an aftermarket radio installed in it. What kit did you use to install it? The car came with a...

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dirtyy, at the top of this Deville main forums page there are several threads marked with push pins. Those are "sticky" threads - timeless info for all users. In those threads is one titled "How to pull codes". Study the correct model and year group instructions for how to read and decipher your OBD1 diagnostic codes.

 

Turn the ignition key forward to light up the instrument cluster, hold down the OFF and RED warmer buttons simultaneously until the cluster fully illuminates, the trouble codes will begin to appear, the blower high and low buttons can be used as yes and no, high (UP) for Yes and low (DOWN) for No. Depress the Auto button to exit diagnostic mode.

 

GM Tech2

 

My shop owner buddy says he can read ABS codes on most cars. I was going to take him up on that with my Acura but I sold it. I would ask around your local shops to see if they can read ABS codes. They still may not be able to on an OBD1 vehicle but they may give it a try for a small fee.

 

The built-in diagnostic code scanner in some Seville, Deville, and Eldorado models (including the OP's vehicle) will read out all stored DTCs.

How To Pull Codes (DTC's)

To check for Diagnostic Trouble Codes stored in the computer, turn the ignition on, then hold down the OFF and WARMER (for digital dash) or OFF and passenger-WARMER buttons (for analog dash) or OFF and "Info ^" buttons (if you have temperature dials) until all of the dash lights come on. The...

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