Trooper LS V6-3.5L (1998)
Seat Heater: Description and Operation
When the starter switch is in ON or START fuse C-2 applies battery voltage to the driver's and right front seat heater switches.
Heat Operation
When the driver's or right front seat heater switch is moved to HEAT, battery voltage is applied through the circuit breakers in the respective seat
cushion to both the seat cushion and seat back heating elements. The seat back is grounded through the seat heater switch to B-26 while the seat
cushion is grounded directly to B-26. With battery voltage applied to the heating elements in this manner, they draw the maximum current causing
them to heat up quickly and to a high temperature. When the temperature becomes too high the circuit breakers in the seat cushion open, removing the
voltage to the circuit. When the temperature falls to a safe temperature, the circuit breakers close, supplying voltage to the circuit.
Keep Operation
When the driver's or right front seat heater switch is moved to KEEP battery voltage is applied through the respective seat cushion heating element to
the respective seat cushion heating element. The respective seat cushion is grounded directly to B-26. With battery voltage applied to the heating
elements in this manner, they draw less current, and do not reach as high of a temperature as in the HEAT position.
