Welcome Aboard!
Since no one else wants to take a stab at it, I'll give it a shot.
The ABS/Trac system runs a short self-diagnostic every time the ignition is turned on. As part of the normal self-diagnostic routine, the warning lamps will turn on or flash. If an error condition exists, a warning lamp will turn on and remain on. Try turning on the ignition WITHOUT starting the engine, and observe the lamps. If the ABS/Trac lamps turn off after a few seconds, the system should be operating normally. If the warning lamp remains ON, there is likely a system error and stored trouble code.
To display any stored trouble codes for the ABS system, you can jumper the #4 (Cg) and #13 (Tc) terminals of the Diagnostic Link Connector to make the ABS warning light strobe the sequence for the stored trouble code(s). Insert an appropriate jumper wire into the terminals, turn the ignition switch to ON without starting the engine, and be prepared to observe the instrument panel warning lamps.
The stored error codes will be displayed by successive 1/2-second flashes of the lamp, separated by various pauses between flashes. Each displayed code will be separated by a 2-3 second delay.
EXAMPLE: Stored trouble codes "11" and "23" would be displayed by a ½-second flash of the lamp, followed by a 1½ second pause, then another ½ second flash of the lamp (that would be a "1" and a "1", or code "11"). There would be a 2½-3 second pause to signal teh end of teh first error code sequence. There would then be a ½-second flash of the lamp, a ½-second pause, and another ½-second flash, a full 1½-second pause, a ½-second flash, a ½-second pause, another ½-second flash, another ½-second pause, and a third ½-second flash of the lamp, followed by a 2½-3 second pause (that would be two quick flashes, a pause, then three quick flashes, or a code "23").
When all codes are retrieved, turn the ignition switch to OFF.
Once you have successfully retrieved all stored trouble codes. you can clear the stored codes from memory. To clear codes, connect the jumper wire to the DLC again in the same terminals. Turn the ignition to ON without starting the engine. Depress the brake pedal at least 8 times within five seconds. Remove the jumper from the DLC
]before turning the ignition off, then turn off the ignition. All ABS/Traction Control codes should be cleared at that point.
If the system displays an error as soon as the ignition is turned ON again, it is likely because a fault condition still exists, and it is being detected as soon as the system performs its self-diagnostic on ignition power-up. The error codes are the best indication of where to look for system problems.