Window Operation
The window system operates under the control of the accessory delay relay. The SJB will ground the coil side of the accessory delay relay when the ignition key is in the ON position. When the accessory delay relay is active, power is supplied to each power control window switches. The power window switches direct power and ground to its associated power window motor.
Normal Operation
The SJB activates the accessory delay relay by grounding the coil side of the relay. The accessory delay relay then provides voltage to all of the window control switches through circuit (R/LB). The driver window control switch is grounded through circuit (B).
The driver window control switch provides power to the driver window motor through circuit (R) and ground through circuit (W/B) to operate the driver window down, and power through circuit (W/B) and ground through circuit (R) to operate the driver window up.
The passenger front window control switch receives power from the accessory delay relay through circuit (R/LB). The passenger front window control switch provides power to the passenger front window motor through circuit (R/Y) and ground through circuit (Y/R) to operate the passenger front window DOWN; and power through circuit (Y/R) and ground through circuit (R/Y) to operate the passenger front window UP.
When operating the passenger front window using the driver window control switch, power is sent to the passenger front window control switch through circuit (T/LB) and ground through circuit (W/Y) to operate the passenger front window DOWN; and power through circuit (W/Y) and ground through circuit (T/LB) to operate the passenger front window UP.
The LH rear window control switch receives power from the accessory delay relay through circuit (R/LB). The LH rear window control switch provides power to the LH rear window motor through circuit (Y/B) and ground through circuit (Y/LB) to operate the LH rear window DOWN; and power through circuit (Y/LB) and ground through circuit (Y/B) to operate the LH rear window UP.
When operating the LH rear window using the driver window control switch, power is sent to the LH rear window control switch through circuit (R/B) and ground through circuit (Y/B) to operate the LH rear window DOWN; and power through circuit (Y/B) and ground through circuit (R/B) to operate the LH rear window UP.
The RH rear window control switch receives power from the accessory delay relay through circuit (R/LB). The RH rear window control switch provides power to the RH rear window motor through circuit (Y/B) and ground through circuit (Y/LB) to operate the RH rear window DOWN; and power through circuit (Y/LB) and ground through circuit (Y/B) to operate the RH rear window UP. When operating the RH rear window using the driver window control switch, power is sent to the RH rear window control switch through circuit (Y/LB) and ground through circuit (GY/O) to operate the RH rear window DOWN; and power through circuit (GY/O) and ground through circuit (Y/LB) to operate the RH rear window UP.
The rear window defrost relay receives power from the BJB fuse 23 (40A) on circuit (B). When the rear window defrost switch is pressed to the ON position, a ground is supplied to the SJB on circuit (DL/O), through the rear window defrost switch, then through circuit (B/W). Then the SJB activates the rear window defrost relay. The rear window defrost relay then supplies 12 volts to the rear window defrost grid on circuit (BR/LB). The rear window defrost grid is grounded through circuit (B) to ground.
The rear window defrost relay receives power from the BJB fuse 23 (40A) on circuit (B). When the rear window defrost switch is pressed to the ON position, a ground is supplied to the SJB on circuit (DL/O), through the rear window defrost switch, then through circuit (B/W). Then the SJB will activate the rear window defrost relay. The rear window defrost relay then supplies 12 volts to the rear window defrost grid on circuit (BR/LB). The rear window defrost grid is grounded through circuit (B) to ground.
The BJB fuse 1 (25A) supplies voltage to the SJB fuse 4 (10A) on circuit (Y). The accessory delay relay receives voltage from the SJB fuse 4 (10A) for the coil side and receives voltage from the BJB fuse 19 (40A) on circuit (B/LG) for the switch side. The SJB controls the coil side ground of the accessory delay relay. The SJB activates the accessory delay relay when the ignition switch is in the ON position. The accessory delay relay will remain active for an additional 10 minutes when the ignition switch is in the OFF position or until the drivers door is opened. Accessory delay components receive voltage on circuit (R/LB).
The BJB fuse 1 (25A) supplies voltage to the SJB fuse 4 (10A) on circuit (Y). The accessory delay relay receives voltage from the SJB fuse 4 (10A) for the coil side and receives voltage from the BJB fuse 19 (40A) on circuit (B/LG) for the switch side. The SJB controls the coil side ground of the accessory delay relay. The SJB activates the accessory delay relay when the ignition switch is in the ON position. The accessory delay relay will remain active for an additional 10 minutes when the ignition switch is in the OFF position or until the drivers door is opened. Accessory delay components receive voltage on circuit (R/LB).
Principles of Operation
The rear view mirror system consists of the following components
- exterior rear view mirror (heated optional)
- exterior mirror control switch
- auto-dimming rear view mirror (optional)
- interior rear view mirror
The exterior mirror control switch receives power through circuit (O/LG) and ground through circuit (B). The exterior mirror control switch uses circuit (Y) as the common circuit for both exterior rear view mirror up/down and right/left movement.
The exterior mirror control switch uses circuit (Y) as the common circuit for both of the exterior mirrors up/down and right/left movement. For the LH exterior rear view mirror, the exterior mirror control switch either directs voltage or provides ground on circuits (R) and (DL), depending on the direction of movement. For the RH exterior rear view mirror, the exterior mirror control switch either directs voltage or provides ground on circuits (DG) and (V) which also depends on the direction of movement.
The exterior mirror control switch uses circuits (R), (DL), (Y), (DG) and (V) to control the exterior rear view mirror movement.
- When power is directed through circuits (R) and (DG) and ground through circuit (Y), the LH/RH exterior rear view mirror will operate left.
- When ground is directed through circuits (R) and (DG) and power through circuit (Y), the LH/RH exterior rear view mirror will operate right.
- When power is directed through circuits (DL and /(V) and ground through circuit (Y), the LH/RH exterior rear view mirror will operate down.
- When ground is directed through circuits (DL) and (V) and power through circuit (Y), the LH/RH exterior rear view mirror will operate up.
The auto-dimming rear view mirror receives power from circuit (B/P) and ground from circuit (B). If the vehicle is placed in REVERSE, voltage is sent to circuit (B/P) and the auto-dimming rear view mirror will turn the dimming feature off. There are two photoelectric sensors: one in the front of the mirror and one mounted on the glass side of the mirror. If the sensors are blocked, the auto-dimming feature might not work correctly. Always verify both sensors are not physically blocked before attempting to diagnose auto-dimming rear view mirror concerns.
When the rear window defrost is ON, the heated exterior mirrors receive voltage from the rear window defrost relay through circuit (DG/V) and ground through circuit (B).
When the roof opening panel glass is completely closed, it is flush with the roof panel and correctly sealed.
When the roof opening panel glass is completely closed, it is flush with the roof panel and correctly sealed. The drain channel collects water and drains it through the front drain hose located in the A-pillar and the rear drain hose located in the C-pillar.
When the roof opening panel glass is completely closed, it is flush with the roof panel. All components should be secured correctly.
The roof opening panel operates smoothly while opening and closing.
The roof opening panel module receives voltage on circuit (BR/O) when the ignition key is in the ACC or ON position. The roof opening panel module is grounded through circuit (B). When the roof opening panel switch is pressed, circuit (B) and circuit (W) are connected for open/tilt down or circuit (B) and circuit (V) are connected for close/tilt up. The roof opening panel module controls the roof opening panel motor by directing power and ground on circuit (O) and circuit (R) to the motor.
The roof opening panel position switch removes ground from circuit (O/W) when the roof opening panel reaches the closed position and when the roof opening panel reaches the comfort stop position. In these positions the roof opening panel module will remove power from the roof opening panel motor.
The driver power seat switch is powered by battery voltage through circuit (B/W) and is grounded by circuit (B). The driver seat switch then routes power and ground to the appropriate circuits to operate the seat motors that are requested.
The power seat should move quietly in the forward, rearward, front up/down and rear up/down directions during operation. Some noise is acceptable. Compare to a similar vehicle for reference.
The power seat movement should be smooth and the seat cushion should not rock during or after operation.
The power seat should travel fully horizontal (forward/rearward) and vertical (front up/down and rear up/down).
The power seat switch is powered by battery voltage on circuit (B/W) and is grounded by circuit (B). When pressed in one of the six available directions, the power seat switch supplies voltage to the desired seat motor on the desired direction circuit. The seat switch is normally closed to ground on all six of the seat motor circuits, so if one circuit becomes closed to power, the circuit on the opposite side of the same motor is still closed to ground. The seat motor will then operate, moving the seat track in the desired direction. Moving the seat switch in the opposite direction reverses polarity to the seat motor, which will cause the seat motor to move the seat track in the opposite direction. There are three seat motors integrated to the seat track assembly: one to move the seat horizontally (forward/rearward), one for front vertical (up/down) operation and one for rear vertical (up/down) operation.
The driver and passenger heated seats share a common battery and ignition feed. A shared ground source supplies the heated seat control switches. When the heated seat control switch is pressed with the ignition switch in RUN or START, a momentary ground signal is sent to the heated seat module. The heated seat module then supplies power to the heating element circuit. The cushion element and seat backrest element are wired in series and powered by the same output. The heated seat module also will power the separate indicator circuit for the indicator to illuminate (located in the heated seat switch) to indicate an ON state. The heated seat module will remain on until the heated seat control switch is pressed and a momentary ground signal is received, or until 10 minutes expire. If the ignition source is removed from the module, the heated seat module will enter an OFF state and will not return to ON until the switch is once again pressed with the ignition switch in RUN. The heated seat module is designed to heat the seat to 37.5°C (99.5°F) and maintain the temperature until time-out or until switched off. This temperature is maintained by the heated seat module monitoring the temperature sensor, located in the seat cushion element and duty cycling the current flow to the heating elements.