Toyota 44050-12591
Modulator Valve

The procedure to remove the Antilock Brakes Hydraulic Control Assembly begins by disconnecting the battery cable along with fluid draining from the brakes followed by immediate paint surface washing when fluid contacts occur. Inverse the windshield wiper arm cover followed by both left and right front wiper arm assembly removal. Remove the hood to cowl top seal together with both the left and right cowl top ventilator louver and front wiper motor and link. Third you should take off the outer cowl top panel followed by the air cleaner assembly. Remove the brake actuator assembly when you have released the lock lever and disconnected the brake actuator connector while avoiding fluid entry into the disconnected parts. The 6 brake tubes need a union nut wrench for removal from the brake actuator while tube labels indicate their reconnection locations: 1: Front wheel cylinder RH, 2: Front wheel cylinder LH, 3: Rear wheel cylinder RH, 4: Rear wheel cylinder LH, 5: 1st master cylinder, 6: 2nd master cylinder. Unfasten both tube clamps from the actuator bracket before uninstalling the three nuts to remove the brake actuator assembly with its bracket while protecting brake tubes and the wire harness. The end of the procedure involves removing the brake actuator bracket assembly after disassembling its 4 bolts.

Remove the brake actuator bracket assembly by taking out the 4 bolts.

Release the lock lever and disconnect the brake actuator connector, taking care not to allow brake fluid to enter the removed connector.