Part 2 of 2

REMOTE KEYLESS ENTRY TRANSMITTER
The Remote Keyless Entry (RKE) transmitter for either RKE system is equipped with two buttons, labeled Lock and Unlock. It is also equipped with a key ring and is designed to serve as a key fob. The operating range of the transmitter radio signal is up to 7 meters (23 feet) from the RKE receiver. The RKE receiver is integral to the power lock and RKE module, or the Central Timer Module (CTM) in vehicles equipped with the optional Vehicle Theft Security System (VTSS).

Each RKE transmitter has a different vehicle access code, which must be programmed into the memory of the RKE receiver in the vehicle in order to operate the RKE system. The power lock and RKE module can retain the access codes of two transmitters in its memory, while the CTM can retain the access codes of up to four transmitters. (Refer to POWER LOCKS/REMOTE KEYLESS ENTRY TRANSMITTER - STANDARD PROCEDURE - RKE TRANSMITTER PROGRAMMING).

The RKE transmitter operates on two Duracell DL2016, Panasonic CR2016 (or equivalent) batteries. Typical battery life is from one to two years. The RKE transmitter cannot be repaired and, if faulty or damaged, it must be replaced.

See the owner's manual in the vehicle glove box for more information on the features, use and operation of the Remote Keyless Entry (RKE) transmitters.

POWER LOCK SWITCH
The power lock system can be controlled by a two-way momentary switch mounted in a receptacle on the back of the mirror flag trim bezel of each front door. Only the switch paddle is visible on the trim bezel. The power lock switch controls battery feed signals to the lock and unlock sense inputs of the power lock and Remote Keyless Entry (RKE) module on vehicles without the optional Vehicle Theft Security System (VTSS), or of the Central Timer Module (CTM) on vehicles with the VTSS. The relays that are integral to the power lock and RKE module or the CTM then direct the correct battery and ground feeds to the power lock motors.

The power lock switches cannot be repaired and, if faulty or damaged, the switch unit must be replaced.

The power lock switches are hard wired in parallel between battery current and the lock and unlock sense inputs to the power lock and Remote Keyless Entry (RKE) module on vehicles without the optional Vehicle Theft Security System (VTSS), or to the Central Timer Module (CTM) on vehicles with the VTSS. The power lock and RKE module or the CTM then controls the proper battery current and ground feeds to the individual power lock motors to lock or unlock the door latches.

Fig. 9 Power Lock & RKE Module:

POWER LOCK & REMOTE KEYLESS ENTRY MODULE
The power lock and Remote Keyless Entry (RKE) module is used on models that are not equipped with the optional Vehicle Theft Security System (VTSS). This module is secured with two screws to the inboard side of the left center instrument panel support above the engine housing. The module contains a Radio Frequency (RF) receiver and integrated circuitry to control all of the power lock and RKE system features. The RKE receiver has a memory function to retain the vehicle access code of at least one, but no more than two transmitters. The RKE receiver is designed to retain the transmitter codes in memory, even if the battery is disconnected.

The power lock and RKE module provides an illuminated entry feature, which turns ON the courtesy lamps for a timed interval (about 35 seconds), when the power locks are unlocked using the RKE transmitter. The module also provides a delay lock feature which, if a side or rear door is still open when a lock request is received by the module, will automatically cycle all of the power lock motors to the lock position 5 seconds after all of the doors are closed.

The power lock and RKE module cannot be adjusted or repaired and, if faulty or damaged, it must be replaced.

The power lock and Remote Keyless Entry module is connected to the vehicle electrical system through two take outs and connectors of the instrument panel wire harness. The module operates on battery current received through a non-switched fused B(+) circuit so the power lock and RKE systems remain functional at all times. The module receives inputs from the ignition switch, the power door lock switches, and both the side and rear door ajar switches. It also receives the Radio Frequency (RF) signal inputs from the RKE transmitter. In response to those inputs, it is programmed to control outputs to the power lock motors and the courtesy lamp circuits.

Because of the active electronic elements within the power lock and RKE module, it cannot be tested with conventional automotive electrical test equipment. If the module is believed to be faulty, test the hard wired power lock system inputs to and outputs from the module. Then replace the module with a known good unit to confirm system operation.