System Operation

The Passive Keyless Entry/Security System is a passive alarm system, designed to protect the vehicle and its contents from theft. The Passive Keyless Entry (PKE) II Module unlocks all the doors, when a transmitter comes into range (approximately 8 feet) of any of the three antennae. The three antennae are located in the driver 5 door, passenger door, and the Liftgate. The PKE Module sends the arm and disarm signals to the Universal Theft Deterrent II (UTD) Module. The UTD II Module can also be disarmed by rotating the driver's door or Passenger's Door Key Lock Switches to the "UNLOCK" position.

The Power Door Lock Switches will unlock all the doors, except for the Liftgate and Sliding Door. However, the Power Door Lock Switches will lock all the doors, including the Liftgate and Sliding Door. With all the doors closed, the UTD II Module will arm 5 seconds after the transmitter leaves the antenna range. The doors will lock and the horn will "chirp" once, to let the driver know the system is armed.

When the alarm is triggered, the UTD II Module pulses the horn and Low Beam Headlights at a frequency of 1 Hz. The UTD Module also turns on the theft deterent Relay, which disables the Starter Motor. The alarm times out after approximately 3 minutes. The horn and low beams stop pulsing, but the starter is still disabled (for theft protection). The alarm can be turned off by bringing a valid transmitter into antenna range, or by turning the driver's door or Passenger's Door Key Lock Switch to the "UNLOCK" position.

The transmitters send out a signal for approximately 20 seconds after being moved. A motion sensor in the transmitter detects movement. The transmitter is not sending out a signal when it is motionless for over 20 seconds, which greatly improves battery life.

To disable the passive feature of the alarm:
1. Ignition "OFF."
2. Bring transmitter into antenna range.
3. Hold transmitter button down for 20 seconds.

The door locks will try to unlock when the button is first depressed. The door locks will cycle once when the disable process is complete (approximately 20 seconds.)

To re-enable the passive feature of the alarm:
1. Ignition "OFF."
2. Bring transmitter into antenna range.
3. Hold transmitter button down for 20 seconds.

The door locks will try to unlock when the button is first depressed. The door locks will cycle once when the re-enable process is complete.

The Liftgate and Sliding Door can be "unlocked" by bringing a transmitter in range or individually (using the door key), in the lock cylinder in the Liftgate or Sliding Door.

When in the armed state, the alarm can be triggered by the following conditions:
1. Opening any door (active low).
2. Activating the shock sensor (active low).
3. Turning the Ignition "ON" (active high).

When in the alarm triggered state, the alarm can be disarmed by the following conditions:
1. By bringing a valid transmitter into range.
2. By turning the driver's door or the Passenger's Door Key Lock Switch to the "UNLOCK" position.

To enable the diagnostic mode:
1. Ignition "ON."
2. Place a jumper across PKE/SS Diagnostic Connector terminals "A" and "B".

The lamp in the Programming Switch will flash any diagnostic codes that are present when the diagnostic mode is enabled.

To exit the diagnostic mode and return to the passive alarm state:
1. Ignition "OFF."
2. Remove the jumper across PKE/SS Diagnostic Connector terminals "A" and "B".
3. Turn the Door Key Lock Switch (driver's door or passengers door) to the "UNLOCK" position.
4. Bring transmitter into antenna range.
5. Hold transmitter button down for 20 seconds.

The door locks will cycle once when the passive reentry process is complete.

To enable the programming mode:
1. Move transmitters out of antenna range.
2. Ignition "OFF."
3. Turn the Door Key Lock Switch (driver's door or passengers door) to the "UNLOCK" position.
4. Press the Programming Switch momentarily.

When the programming mode is enabled, the diagnostic lamp will flash "one" continuously until the first transmitter is brought into range. The first transmitter is then brought into range and when the code is stored (from the transmitter), the diagnostic lamp will be continuously lit. When the first transmitter is taken out of range, the diagnostic lamp will flash "two" continuously until the second transmitter is brought into range. The second transmitter is then brought into range and when the code is stored (from the second transmitter), the diagnostic lamp will be continuously lit. The same sequence of events would occur for a third transmitter.

The maximum number of transmitters that can be programmed is "three." When the third transmitter code is stored, and the transmitter is taken out of range, the programming of the transmitters is complete.

To exit programming mode:
1. Move validated transmitters out of antenna range.
2. Open and then close either the driver's door or the passengers door.

The diagnostic lamp will turn "OFF," and stay off, until a new programming sequence is initiated. If a transmitter is brought back into range (during a programming sequence) that was already programmed, the diagnostic lamp will continue flashing until a new transmitter is brought into range. The stored codes will remain in the memory of the receiver, even if the Battery is disconnected.

IMPORTANT: When disconnecting and reconnecting the vehicle Battery for service, check for normal operation of the Passive Keyless Entry/Security System. The doors should lock and the horns should "chirp" when taking the key fob out of antenna range. The doors should unlock when the key fob is brought into antenna range. If the system works OK except for the door unlock function, refer to Chart #2, "PKE/SS System Reset," to reset the system to normal operation. System/Symptom Charts