Seats: Description and Operation

Fuse 6 in the power distribution center (PDC) and a 30 amp fuse breaker in cavity 16 of the fuse block protect the power seat system. Circuit A3 from fuse 6 in the PDC supplies voltage to the fuse block bus bar that powers the circuit breaker. Circuit A3 is HOT all times.

The power seat has three internal motors. Each motor is protected by a separate internal circuit breaker.

Circuit F35 from the circuit breaker in cavity 16 of the fuse block supplies battery voltage to the power seat switch. A bus bar internal to the switch feeds the contacts for seat adjustment. Circuit F35 is HOT at all times. Circuit Z1 provides ground for the power seat system and terminates at the seat.

When the operator selects the FRONT VERTICAL UP function power is passed on the F35 circuit through the closed contacts in the switch to the P19 circuit. The P19 circuit connects to the motor. Ground is provided on the P21 circuit back to the switch. A ground BUS bar internal to the switch then connects to the Z1 circuit.

For FRONT VERTICAL DOWN function the circuits are reversed. P21 is the feed and P19 is the ground.

When the operator selects the HORIZONTAL FORWARD function power is passed on the F35 circuit through the closed contacts in the switch to the P15 circuit. The P15 circuit connects to the motor. Ground is provided on the P17 circuit back to the switch. A ground BUS bar internal to the switch then connects to the Z1 circuit.

For HORIZONTAL REARWARD function the circuits are reversed. P17 is the feed and P15 is the ground.

When the operator selects the REAR VERTICAL UP function power is passed on the F35 circuit through the closed contacts in the switch to the P11 circuit. The P11 circuit connects to the motor. Ground is provided on the P13 circuit back to the switch. A ground BUS bar internal to the switch then connects to the Z1 circuit.

For REAR VERTICAL DOWN function the circuits are reversed. P13 is the feed and P13 is the ground.