SWITCH-WINDOW/DOOR LOCK
DESCRIPTION
A window/lock switch located in each front door trim panel. The driver’s side window/lock switch includes the fol-
lowing:
•
Power Lock Switch - A two-way, momentary, resistor multiplexed switch to control the power lock system.
•
Power Window Lockout Switch - A two-way, latching, push-button switch allows the vehicle operator to lock
out the power window switches on each passenger door so that the passenger door power windows may be
operated only from the master switches.
•
Power Window Switches - A two-way, momentary power window switch for the driver side front door also has
a second detent in the Down direction and internal circuitry to provide an Auto-Down feature for the driver side
front door power window. In addition to the power window switch for its own door, the window/lock switch
houses individual master switches for each passenger door power window.
The passenger side window/lock switch includes the following:
•
Power Lock Switch - A two-way, momentary, resistor multiplexed switch to control the power lock system.
•
Power Window Switch - A two-way, momentary power window switch for the passenger side front door.
OPERATION
The driver side window/lock switch combines a power lock switch, a driver power window switch with an Auto-down
feature, master switches for each passenger door power window, a power window lockout switch, a power mirror
selector switch, and four power mirror adjustment switches in a single assembly. The switches in the window/lock
switch can be diagnosed using conventional diagnostic tools and methods.
Power Lock Switch
The power lock switch circuitry is connected in series between ground and the driver door switch mux input of the
instrument cluster (without memory). If equipped with the memory system, the circuitry is connected to the memory
mirror module. Each power lock switch position (Lock, Unlock, and Neutral) provides a different resistance value to
the instrument cluster or memory mirror input, which allows the instrument cluster or memory module to sense the
switch position. Based upon the power lock switch input, the instrument cluster or memory module controls the
battery and ground feed outputs to the individual power lock motors to lock or unlock the door latches. The Light-
Emitting Diode (LED) in the power lock switch is connected to battery current through the power window circuit
breaker in the Integrated Power Module (IPM) on a fused ignition switch output (run-acc) circuit so that the switch
will be illuminated whenever the ignition switch is in the On or Accessory positions.
Power Window Switches
The power window switch circuitry is connected to battery current through a circuit breaker in the Integrated Power
Module (IPM) on a fused ignition switch output (run-acc) circuit so that the power windows will operate whenever
the ignition switch is in the On or Accessory positions. Each two-way, momentary master passenger power window
switch in the window/lock switch provides battery current and ground to the individual power window switches on
each passenger door so that the power window switch controls the battery current and ground feeds to its respec-
tive power window motor. The switch for the driver side front door power window includes an auto-down feature.
When this switch is depressed to a second momentary detent position and released, the driver door power window
is automatically operated through an internal circuit and relay to its fully lowered position. The Auto-down event is
cancelled if the switch paddle is depressed a second time in either the Up or Down direction. When the two position
window lockout switch in the window/lock switch is depressed and latched in the lockout position, the battery current
feed to each of the individual passenger power window switches is interrupted so that the passenger door power
windows can only be operated from the switches in the window/lock switch. The window lockout switch also controls
the battery current feed for the LED in each passenger power window switch so that the switch will not be illumi-
nated when it is locked out.
8N - 54
POWER LOCKS - SERVICE INFORMATION
LX