Scheme 376
Some vehicles are equipped with the HomeLink® transceiver (1). The transceiver is located in the driver side sun visor assembly (2). The only visible component of the HomeLink® transceiver are the three push buttons. The buttons are marked with one, two or three dots, respectively, for identification of each channel.
Each of the three HomeLink® transceiver push buttons controls an independent radio transmitter channel. Each of these three channels can be trained to transmit a different radio frequency signal for the remote operation of garage door openers, motorized gate openers, home or office lighting, security systems or just about any other device that can be equipped with a radio receiver in the 280 to 418 MegaHertz (MHz) frequency range for remote operation. The transceiver is capable of operating systems using either rolling code or non-rolling code technology. The system will not transmit operating signals if the Vehicle Theft Security System is armed.
The HomeLink® transceiver cannot be repaired, and is available for service only with the visor assembly. If any part of the component is inoperative or damaged, the complete visor assembly must be replaced. Refer to VISOR, REMOVAL .
OPERATION
The HomeLink® transceiver operates on a direct battery feed so the unit will remain functional, regardless of the ignition switch position. The transceiver has a security ground and will become disabled any time the vehicle security alarm is armed. For more information on the features, programming procedures and operation of the HomeLink® transceiver, see the owner's manual in the vehicle glove box.
Scheme 377
If the HomeLink® transceiver is inoperative, retrain the transceiver with a known good transmitter, insuring the transmitter battery is OK. Refer to STANDARD PROCEDURE . Test the universal transmitter operation again. If the unit is still inoperative, test the universal transmitter with Radio Frequency Detector special tool as described below
- Turn the Radio Frequency (RF) Detector ON (3). A "chirp" will sound and the green power Light Emitting Diode (LED) will light (2). If the green LED does not light, replace the battery (4).
- Hold the RF detector within one inch of the TRAINED universal transmitter and press any of the transmitters buttons.
- The red signal detection LEDs (1) will light and the tool will beep if a radio signal is detected. Repeat this test for all three transmitter buttons. If the tool does not detect a radio signal for any of the three buttons, replace the inoperative HomeLink® transceiver assembly. Refer to «VISOR, REMOVAL»(ref-485483-S16565250532012071300000) .