Door Lock System Components
The power door lock system consists of the following components:
| • | Driver switch assembly |
| • | Passenger door lock switch |
| • | Key cylinder switch |
| • | Door lock actuators in each of the doors |
| • | PWR LOCKS 20A fuse |
Door Lock System Controls
The power door lock system can be controlled by any of the following:
| • | A door lock switch LOCK or UNLOCK activation |
| • | A key cylinder lock/unlock activation |
| • | A keyless entry transmitter activation |
| • | An automatic door lock activation (Personalization function) |
| • | An automatic door unlock activation (Personalization function) |
| • | A delayed locking activation (Personalization function) |
Door Lock Operation
When the driver switch assembly detects a transition of either its own door lock switch, the passenger door lock switch or the key cylinder switch to the LOCK position, it switches the door lock actuator lock control circuit to voltage. Since the lock actuator unlock control circuits are at ground potential within the driver switch assembly, the door lock actuator motors transition to the LOCK position.
Driver Door Unlock Operation
When the driver switch assembly detects a transition of either its own door lock switch, the passenger door lock switch or the key cylinder switch to the UNLOCK position, it switches the driver door lock actuator unlock control circuit to voltage. Since the door lock actuator lock control circuit is at ground potential within the driver switch assembly, the LF door lock actuator motor transitions to the UNLOCK position.
The driver door lock actuator unlock control circuit is a dedicated control circuit used only for the driver door lock actuator motor. This is done so that the driver door may be unlocked by itself using a keyless entry transmitter or an automatic door unlock function, if programmed.
Passenger Door Unlock Operation
When the driver switch assembly detects a transition of either its own door lock switch, the passenger door lock switch, or the key cylinder switch to the UNLOCK position, it switches the door lock actuator unlock control circuits to voltage. Since the door lock actuator lock control circuit is at ground potential within the driver switch assembly, the passenger door lock actuator motors transition to the UNLOCK position.
The door lock actuator unlock control circuits are dedicated control circuits used only for the passenger door lock actuator motors. This is done so that the driver door may be unlocked separate from the passenger doors using a keyless entry transmitter or an automatic door unlock function, if programmed.
Automatic Door Lock/Unlock
The automatic door lock/unlock function is a vehicle personalization feature with the following 3 programmable modes of operation:
Mode 1 (default):
On vehicles with an automatic transmission, this mode locks all of the doors when the vehicle is shifted out of PARK (P) and unlocks all of the doors when the vehicle is shifted into PARK (P).
On vehicles with a manual transmission, this mode locks all of the doors when the vehicle speed is greater than 15 mph (24 km/h) and unlocks all of the doors when the key is removed from the ignition.
Mode 2:
On vehicles with an automatic transmission, this mode locks all of the doors when the vehicle is shifted out of PARK (P) and unlocks the drivers door when the vehicle is shifted into PARK (P).
On vehicles with a manual transmission, this mode locks all of the doors when the vehicle speed is greater than 15 mph (24 km/h) and unlocks the drivers door when the key is removed from the ignition.
Mode 3:
On vehicles with an automatic transmission, this mode locks all of the doors when the vehicle is shifted out of PARK (P). The doors will not automatically unlock. On vehicles with a manual transmission, this mode locks all of the doors when the vehicle speed is greater than 15 mph (24 km/h). The doors will not automatically unlock.
For information on programming the automatic door locks, refer to the vehicle owners manual.
Delayed Locking
The delayed locking function is a vehicle personalization feature that is intended to allow the doors to be locked while passengers are exiting the vehicle. When delayed locking is in Active Mode, the body control module (BCM) will delay locking of the vehicle doors for 5 seconds after all of the doors have been closed. The delayed locking function will be overridden if the BCM receives a door UNLOCK input or a key in ignition input.
Lockout Prevention
This function is intended to prevent the vehicle operator from locking the doors if the key is left in the ignition and any vehicle door is open. The lockout prevention function can be overridden by the body control module (BCM) if the BCM receives a remote lock input or if the door is manually locked.
Unlock After Air Bag Deployment
This feature will unlock all of the vehicle doors 15 seconds after air deployment.
