Diagnosis And Testing - Remote Keyless Entry Transmitter
WARNING: This page is about a different car, the 2004 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
Using special tool 9001, first test to ensure that the transmitter is functioning. Typical testing distance is 2.5 centimeters (1 inch) for Asian transmitters and 30.5 centimeters (12 inches) for all others. To test, position the transmitter. Press any transmitter button, then test each button individually. The tool will beep if a radio signal strength that lights five or more LED's is detected. Repeat this test three times. If transmitter fails any of the test refer to the Diagnostic Procedures manual.