Headrest

When the seat switch is operated to move the headrest up, battery positive voltage (B+) is applied via the headrest up switch contacts and CKT 1257 (WHT/BLK) (LH) or CKT 1625 (LT GRN) (RH) to the headrest motor. The motor is grounded via CKT 1258 (BLU/WHT) (LH) or CKT 1626 (YEL) (RH) and the headrest down switch contacts to ground. The motor runs to drive the headrest up until the switch is released. Moving the headrest down works similarly to moving the headrest up except that the battery positive voltage (B+) and ground are on the opposite circuits causing the motor to run in the opposite direction driving the headrest up.