With Valve Relay Removed
Turn ignition off. Remove hydraulic unit. See HYDRAULIC UNIT R & I . Remove valve relay from hydraulic unit. Using ohmmeter, measure resistance between terminal "X" of hydraulic unit valve relay connector and specified terminals of hydraulic unit connector. See Fig 1 and Fig 2 . See HYDRAULIC UNIT CONNECTOR TERMINAL RESISTANCE . If resistance is not as specified, check wiring harness. If wiring harness is okay, replace hydraulic unit.