My Homelink garage door opener stopped working. The buttons on the visor are illuminated and seem to be working OK. I suspect the transmitter unit is malfunctioning but I have no idea where to find it. Can anyone tell me where the Homelink transmitter is? Under the hood someplace? Imbedded in the rear-view mirror?

I got it working. The instructions on the Homelink website are different than in my Volvo owners manual. Following the Homelink steps worked immediately, to my relief.

I believe what has happened here is that in the process of using the OBD-II to look for problems elsewhere when the car was at the dealer last week, the technician did something to reset the Homelink module (and I'm assuming that the Homelink is also monitored/controlled by OBD-II). I believe that is the only explanation why it worked to lower the garage door when I went to the dealer but wouldn't open it when I came home.

Homelink web site www.homelink.com shows info on how to program the unit BUT I could not find info on Volvo??
In my Audi the buttons are in the sun visor but the antenna is under right headlamp and that's where I needed to point the transmitter while programming my unit.

Homelink is 100% self contained in the visor. There are no other components. It gets power and ground from the 2 wires that run down behind the left A pillar cover and thats it. You might try reprogramming it.

Thanks for the response Jim but I have screwed myself into the ground reprogramming this thing. My wife's V70 works just fine so I know it's got nothing to do with the opener itself. I took the car to the dealer for it's 60K mile routine and when I brought it home, the homelink no longer works. I thought if I could find the unit, I would find a loose wire or something simple like that. But now I go back to the dealer.

Jobe,
How do you program this thing? I just got a 2000 S70. The buttons do not light up on mine and I tried to program it to open my NEW garage door openers to no avail. The owners manual does not mention it at all. Is there a fuse missing somewhere?
--
Tom 69-1800S, 72-1800ES, 96-850T,2000-S70 GLT-SE

From the 2000 S70 owners manual

pg. 198 HomeLink® Universal Transceiver (option)

Indicator light

HomeLink® Universal Transceiver

This transceiver allows you to replace 3 hand-held transmitters with a single built-in device which can be installed in your car on a sun visor or overhead console. This feature "learns" the radio frequency codes of most current transmitters to operate garage doors, driveway gates, security lighting and home security systems. This transceiver is powered by your car's electrical system.

NOTE: As a security precaution, the HomeLink® Universal Transceiver is designed to not function if the car has been locked from the outside.

Programming the transceiver

1. Begin by erasing all 3 factory default channels by holding down the two outside buttons (buttons 1 and 3 in the illustration above) on the HomeLink® Universal Transceiver until the indicator light on the transceiver begins to flash, after approximately 20 seconds. Release the buttons.

2. Hold the end of your hand-held transmitter 2 to 5 in. (5 to 12 cm) away from the HomeLink® surface, keeping the indicator light in view. For placement questions, please contact HomeLink® at
1-800-355-3515 (Internet: www.HomeLink.jci.com).

3. Using both hands, simultaneously push the hand-held transmitter button and the HomeLink® button to be programmed. Do not release the buttons until this step has been completed.
The HomeLink® indicator light will begin to flash, first slowly, then rapidly. When the indicator light flashes rapidly (indicating that the HomeLink® button has been successfully programmed), both buttons may be released.

The remaining two HomeLink® buttons can be programmed in the same way.

If, after several attempts, you do not successfully program the HomeLink® Universal Transceiver to learn the signal of the hand-held transmitter, refer to the section "Programming rolling codes" or call the toll-free customer assistance number: 1-800-355-3515 (Internet: www.HomeLink.jci.com).

pg. 200 HomeLink® Universal Transceiver (option)


Reprogramming a single HomeLink® button

1. Press and hold the desired HomeLink® button. Do not release the button until step 3 has been completed.

2. When the indicator light begins to flash slowly (after approximately 20 seconds), position the hand-held transmitter 2 to 5 in. (5 to 12 cm) away from the HomeLink® surface.

3. Press and hold the hand-held transmitter button.
The HomeLink® indicator light will begin to flash, first slowly then rapidly. When the indicator light flashes rapidly, release both buttons.

The previously programmed device has now been erased and the new device can be activated by pressing the HomeLink® button that has just been programmed. This procedure will not affect any other programmed HomeLink® buttons.

NOTE:

· Retain the original transmitter(s) for future programming procedures (i.e., if you purchase a new car).

· It is also suggested that if you sell your car, the programmed channels on the HomeLink® Universal Transceiver be erased for security purposes.