Grand Voyager L4-2.4L DOHC (1996)
Blower Motor Switch: Description and Operation
Circuit Operation
Front Control Switch
CIRCUIT OPERATION
When the front control switch is in the LOW position, ground passes through the temperature switch, and both resistors to circuit C60. Circuit C60
connects to the front control switch. The front control switch connects the blower motor to ground on circuit Z1.
When the front control switch is in the MEDIUM position, ground passes through the temperature switch, and one resistor to circuit C65. Circuit
C65 connects to the front control switch. The front control switch connects the blower motor to ground on circuit Z1.
If the front control switch is in the HIGH position, the ground path for the blower motor is on circuit C70 through the front blower switch to
ground circuit Z1.
Rear Control Switch
CIRCUIT OPERATION
For the rear control switch to operate the rear blower motor the front control switch must be in the ON position. Circuit C50 from the rear control
switch connects to the ON terminal of the front control switch. In the ON position, the front control switch connects circuit C50 to ground on
circuit Z1.
When the rear control switch is in the LOW position and the front control switch is in the ON position, ground passes through the temperature
switch, and both resistors to circuit C60. Circuit C60 connects to the rear control switch. From the rear control switch, ground passes through
circuit C50 and the front control switch to circuit Z1.
When the rear control switch is in the MEDIUM position and the front control switch is in the ON position, ground passes through the temperature
switch, and one resistors to circuit C65. Circuit C65 connects to the rear control switch. From the rear control switch, ground passes through
circuit C50 and the front control switch to circuit Z1.
If the rear control switch is in the HIGH position and the front control switch is in the ON position, the ground path is on circuit C70 through the
rear control switch. From the rear control switch, ground passes through circuit C50 and the front control switch to circuit Z1. In the HIGH
position, current does not flow through the blower motor resistors.
