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DISCONNECT THE BLOWER MOTOR POWER LEAD. RUN A "FUSED" (20AMP) HOT JUMPER WIRE TO POSITIVE SIDE OF CONNECTOR,THEN TO BATTERY POSITIVE, THEN RUN A NEG. WIRE BACK TO NEG. AT BATTERY (TO INSURE A FULL CIRCUIT). IF BLOWER WORKS...YOU HAVE A SWITCH,WIRING, OR FUSE/CIRCUIT BREAKER PROBLEM.NEXT CHECK FOR POWER INTO BUT NOT OUT OF SWITCH...IF THIS IS THE CASE THE SWITCH IS THE PROBLEM.
Don't know how the ABS light would be related to the blower motor, you said you checked everything - did you check the blower motor circuit for power and ground with a meter or a test light ? Is the resistor getting power from the relay ?
Let's start with the passenger compartment fuse box. If you checked the 30A HEATER fuse the blower motor should run at various speeds as you operate the blower switch. If you checked the 10A REAR WIPER fuse (!), and also checked the 30A ADD (?) fuse in the engine compartment fuse relay box, turning on the air conditioner should operate the A/C relay to turn on the condenser fan motor. If this doesn't solve your problem, you'll have to trace power through the various circuits.
Might be the Resistor pack located close to the blower. It has a flat connector with 4 or 5 wires, and two small screws holding in the duct. It may be a crispy critter. It happens... The blower moves air across it to keep it cool. The blower motor may be bad as well, or possibly the fan speed switch. May very well be the fuse for the blower as well. check the connector on the blower. Let me know what you find.