For 1990-2009 cars

### Anti-Lockout

The anti-lockout feature aids in preventing the customer from locking their car keys in the vehicle. This is a programmable feature using the Tech 2. The options are enable and disabling the feature. The feature works as follows: If the keys are in the ignition, and a door lock switch is activated with any door open, the body control module (BCM) will lock all doors, then with in 500 mS the drivers door will unlock. This feature can be overridden in two ways:

• | The doors will lock if a lock command from a remote keyless entry (RKE) transmitter is sent to the BCM

• | Manually push the lock tab on the door

### Delayed Locking

The delayed locking feature will activate when a valid lock command is received from a transmitter while any door or trunk (hatch) remains open. The BCM will delay locking the vehicle until all doors and deck lid (hatch) are closed. The lock command will execute with in 500 mS after all doors and or decklid transition to closed. If during the delayed state a transmitter unlock command, door unlock switch input or the ignition switch changes state to other than off, the delayed locking command will cancel.

When the delayed locking feature is active in the delayed state, the BCM will activate a chime at the rate of 50 chime per minute for a duration of 3 chime cycles.

This feature is available on all Saturn L-Series vehicles with RKE.

### Lock Transmitter

When a lock command is received from the transmitter, the BCM provides battery voltage through circuit 195 to the LOCK relay in the RIPFB. The LOCK relay coil, grounded by circuit 450, energizes and causes the relay contacts to close. When the relay contacts close, battery voltage is provided through the LOCKS fuse, through the relay, and out of the RIPFB to each of the door lock motors. The driver door lock motor is grounded through the driver unlock relay in the RIPFB circuit 450. The other door lock motors are grounded through the other doors relay in the RIPFB circuit 450.

The Saturn Security System is automatically enabled when the LOCK button is pressed on the transmitter. The LOCK button can be pressed a second time for a horn chirp confirmation. If the LOCK button is pressed twice, and any of the doors are open, the horn will not chirp.

When the Saturn Security System is activated, the BCM will chime at 200 chimes per minute for 10 seconds (pre-alarm). Following this 10 second pre-alarm warning, the horn will cycle at 1 Hz with 200 ms on time, and the daytime running lamps (DRL) will flash (full alarm). The DRL will not flash during the 10 second pre-alarm. The full-alarm will continue until any button is pressed on the transmitter, or 2 minutes have passed, whichever occurs first.

### Lock Switches

The lock operation of the drivers and passengers door switches is the same as when operated by the transmitter, except the battery voltage is provided to the switches through the body fuse.

### Unlock Transmitter Drivers Door

When an unlock command is received from the transmitter, the BCM provides the battery voltage through circuit 1391 to the driver door UNLOCK relay in the RIPFB. The UNLOCK relay coil, grounded by circuit 450, energizes and causes the relay contacts to close. When the contacts close, the battery voltage is provided through the LOCKS fuse, through the relay, and out the RIPFB to the driver door motor.

The Saturn Security System is disabled when the UNLOCK button is pressed. If the horn chirp mode is enabled, the horn will chirp twice for confirmation that the Saturn Security System is disarmed.

### Unlock Transmitter All Doors Except Drivers Door

When a second unlock command is received from the transmitter within five seconds of the first unlock command, the remote keyless entry module provides battery voltage through circuit 194 to the OTHER DOOR UNLOCK relay in the RIPFB. The Unlock relay coil, grounded by circuit 450, energizes and causes the relay contacts to close. When the relay contacts close, battery voltage is provided through the LOCKS fuse, through the relay, and out of the RIPFB to each of the door lock motors, in opposite direction of lock. except the drivers door lock motor. The door lock motors are grounded through the LOCK relay by the RIPFB ground circuit 450.

### Unlock Switches

The unlock operation of the drivers and passengers door switches, excluding the drivers door unlock, is the same as when operated by the transmitter, except battery voltage is provided by either switch to the UNLOCK relay instead of by the remote keyless entry module. The drivers door unlock signal is detected by the BCM, through circuit 780. The remote keyless entry module provides battery voltage to the drivers door lock motor in the opposite direction of lock.

### Decklid Release -- Sedan

The BCM monitors the decklid release switch through circuit 56. When the valet switch located in the trunk is positioned to allow the decklid release from inside the vehicle the BCM will see circuit 56 transition to high or battery voltage. The BCM will provide battery voltage to circuit 382 leading to the decklid release solenoid, which releases the locking mechanism on the decklid.

The RKE system functions in a similar manor as the decklid release switch on the sedan. The RKE input to the BCM for the decklid release will also command the BCM to provide battery to circuit 382 resulting in a release of the decklid locking mechanism. The RKE system will function when the valet switch is in either position.

### Liftgate Release -- Wagon

The BCM controls the decklid release for the Saturn L-Series wagons. The system functions as follows: The BCM monitors circuit 744 to determine if the liftgate is open or closed. In order to open the liftgate the gate must be unlocked prior to pressing the key cylinder release. You can unlock the liftgate by pressing the individual trunk bottom on the RKE transmitter or by pressing the unlock button twice on the RKE transmitter. The BCM will lock the liftgate 20 seconds after an unlock from the RKE transmitter and or 20 seconds after the liftgate is opened or released with the ignition key. The liftgate can be unlocked and opened using our ignition key just as the decklid does on Sedans.

### Automatic Door Lock and Unlock

The doors can be programmed to not lock automatically when the shifter moves out of park, or at 5 kph on manual transmission cars. Doors will not unlock automatically when the key is removed from the ignition.

#### Customer Programmable

The doors can be programmed to not lock automatically when the shifter moves out of park, or at 5 kph on manual transmission cars. Doors will not unlock automatically when the key is removed from the ignition.

• | The auto lock and unlock functions are customer programmable independent of each other. They come from the factory enabled.

• | To enable/disable the lock feature, depress the power lock button for 8 seconds while the key is in the accessory or ON position with the engine off.

• | To enable/disable the unlock feature, depress the power unlock button for 8 seconds while the key is in the accessory or ON position with the engine off.

• | In both cases, the horn will blow once to confirm enabled, and twice to confirm disabled.

### Dome Lamp

The circuit description of the dome lamp is explained in Interior Lamps.

### Horn

The circuit description of the horn is explained in the Horn System.