Mazda Trucks 1987-1993 Repair Guide
REMOVAL & INSTALLATION
Disconnect the negative battery cable.
Disconnect and plug the 2 brake lines connected to the valve.
Disconnect the wiring harness from the valve harness.
Remove the screw(s) retaining the valve and remove the valve.
Installation is the reverse of the removal procedure. Tighten the valve retaining screw(s) to 14-19 ft. lbs. (19-25 Nm) on Pickup/MPV and 11-14 ft. lbs. (15-20 Nm) on Navajo. Bleed the brake system.