Diagnosis And Testing - Universal Transmitter

Courtesy of CHRYSLER GROUP, LLC

If the universal transmitter (also known as the HomeLink® transmitter or Universal Garage Door Opener/UGDO) is inoperative, reprogram the transmitter using a known good transmitter containing a known good battery. Test the universal transmitter operation again. If the unit is still inoperative, test the universal transmitter with a Radio Frequency Detector special tool as follows:

1. Turn On the Radio Frequency (RF) detector special tool by depressing the ON/OFF button (3). An audible chirp  will sound and the green Power indicator (2) will illuminate. If the Power indicator does not illuminate, replace the RF detector battery (4).
2. Hold the RF detector within 2.54 centimeters (1 inch) of the trained  universal transmitter, then depress any one of the three universal transmitter channel push buttons.
3. The red Signal Strength Light Emitting Diode (LED) units (1) will illuminate and the tool will generate an audible beep  if a radio signal is detected. Repeat this test for all three universal transmitter channel push buttons. If the tool does not detect a radio signal for any of the three push buttons, replace the ineffective universal transmitter unit. Refer to CONSOLE, OVERHEAD, FRONT, REMOVAL and CONSOLE, OVERHEAD, FRONT, INSTALLATION .