The keyless entry system is a vehicle entry device. The keyless entry will unlock/unlatch the vehicle doors or open the trunk when a corresponding button on the key fob is pressed. This is accomplished by the key fob sending a radio frequency to the remote control door lock receiver (RCDLR). The signal is received by the RCDLR via an internal antenna located within the RCDLR. The RCDLR interprets the signal and activates the requested function via a message over the serial data line. A low transmitter battery or radio frequency (RF) interference from aftermarket devices such as 2-way radios, power inverters, cellular phone chargers, computers, etc. may cause a system malfunction. High RF traffic areas, such as gas stations which use pay-at-the-pump RF transponders, may also cause interference that could lead to a malfunction.

Schematic Reference

Remote Function Schematics

Connector End View Reference

Remote Function Connector End Views

Electrical Information Reference

Scan Tool Reference

Scan Tool Data List

1. Place the transmitter on the test pad of the J 43241 .

⇒	If the tone does not sound and the green light does not illuminate, replace the transmitter.

2. Verify that the headlamps pulse ON and OFF when the panic button is pressed.

⇒	If they do not pulse ON and OFF, refer to Diagnostic Starting Point - Lighting Systems .

3. Refer to Diagnostic Starting Point - Horns .

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.