Power Seat System: Operation

Power seat system uses 4 reversible motors that operate seat functions: front height, rear height, forward/back and recline. The power lumbar system uses 2 reversible motors. Power for seat operation is supplied through seat switches by PWR SEAT circuit breaker (30-amp) located in rear fuse block. Each seat motor contains an internal electronic circuit breaker (PTC), which resets only after voltage is removed.

Heated seat system is designed to heat seat cushion and seat back to about 98.6°F (37°C) in the low switch position and about 107.6°F (42°C) in the high switch position. A temperature sensor, located in seat, is a variable resistor that sends an input to the heated seat module. The heated seat module maintains seat temperature by shutting off voltage to the heating elements. Power for heated seats is supplied by HTDST LF or HTDST RF fuse (10-amp) located in rear fuse block.

On models with memory seats, power for seat switches is supplied by MEM fuse (10-amp) located in rear fuse block. The Memory Seat Module (MSM) supplies power for all seat motors. Power for MSM is supplied by PWR SEAT circuit breaker (30-amp) located in rear fuse block.