Keyless Entry: Service and Repair

Keyless Entry Module Mounting:

All Keyless Entry Modules (receivers) may be programmed to receive two vehicle access codes (VAC). That is, two different transmitter/key chains may be used to operate the remote control lock system on the vehicle. Also, several vehicles, each with the Remote Lock Control Option (AX3), may all be programmed to operate from one transmitter or two different transmitters.

During the programming of the Keyless Entry Module, feedback is provided by the receiver by cycling the door locks. To program a Keyless Entry Module (receiver) to match the VAC of one or two transmitter/ keychains:

1. Jumper the Keyless Entry Module's "program" connector with a jumper lead to ground. The program connector is located in the forward center area of the trunk opening. The module will cycle the door locks to indicate program mode feedback.

2. Press one button on the transmitter one time to store the transmitter's VAC. The door locks will cycle as feedback.

3. (Go to Step 4 if only one transmitter will be used.) Press one button on the second transmitter to store the second transmitter's VAC. The door locks will cycle as feedback. If a second VAC signal is not received before the programming harness is removed, the receiver will be programmed to the first transmitter's VAC only. This procedure prevents unauthorized programming without owner knowledge.

4. Remove programming (jumper) harness to restore normal system operation.

5. Verify proper operation of RLC system.

Important
Do not leave the door lock key (oval head) in the vehicle while programming the Keyless Entry Module. This will avoid unintentional lock out if the programming procedure is not properly performed.

All vehicles with the Remote Lock Control option will have the Keyless Entry Module "matched" to the transmitter at the assembly plant. The above procedure is used by service to replace lost transmitters or to program the VAC of a second transmitter. Prior VAC's are erased from the Keyless Entry Module's (receiver) memory when the programming harness is connected.

Up to two vehicle access codes may be stored in the Keyless Entry Module's memory. The memory is an electronically erasable programmable read only memory (EEPROM) which is nonvolatile. Therefore, if power to the module is interrupted (battery or fuse disconnect) the VAC's are not erased.