[. . . ] So thieves now use a code-grabber, a device that literally records, from hundreds of feet away, the code sent by your garage door transmitter. When you have left, they just use the code-grabber to retransmit the code and activate your garage door opener. Thieves have been using this same code-grabbing technology to disarm car alarms. So Clifford Electronics, the world leader in auto security technology, developed Anti-CodeGrabbing: ACG. [. . . ] You may need to remove the opener's outer housing in order to access the circuit board. Most receivers use "tuning slugs. " It may be necessary to poke through a decal in order to gain access to the tuning slug holes (as illustrated in diagram 2). · On some openers, the tuning slugs may be located on the exposed printed circuit board (diagram 3). · Use the supplied tool to turn the inner core counterclockwise until it can be removed (diagram 4). · If the receiver uses a "tuning capacitor, " use a screwdriver to turn the screw 1/4-turn in either direction (diagram 5). · On a Genie "Genius" type opener, peel back the label on the circuit board and rotate the screw a quarter-turn in either direction (diagram 6). Reconnect power to the garage door opener and activate the original remote control. Repeat steps 1-5 for garage door/gate openers #2 and #3, if applicable. 3 4 How to use your keychain remote control Clifford Electronics makes two types of Anti-CodeGrabbing remote controls. The 3-channel Clifford remote control illustrated to the right and a 12-channel remote control illustrated below. The 3-button/3-channel remote control can command three different items, while the 4-button/12-channel model can command the Programmable Receiver's three different channels plus up to nine other functions of additional Programmable Receivers and/or Clifford vehicle security systems and accessories on your vehicle(s). You select and transmit the channels in the following manner: To transmit either channel 1, 2, 3 or 4: Just press either button 1, 2, 3 or 4. While you transmit, the LED indicator will blink once every second: this indicates level 1. To transmit either channel 5, 6, 7 or 8: Press the LevelShift button once. For instance, to transmit channel 5, press the LevelShift button once, then press button 1. While you transmit, you'll notice that the LED indicator blinks twice, pauses, blinks twice, etc. : this indicates level 2. To transmit channel 9, 10, 11 or 12: Press the LevelShift button twice. For instance, to transmit channel 12, press the LevelShift button twice, then press button 4. While you transmit, you'll notice that the LED blinks three times, pauses, blinks three times, etc. : this indicates level 3. NOTE: One second after you stop transmitting level 2 or level 3 (channels 5­12), the remote control automatically returns to level 1 (channels 1­4). 5 How to program Clifford ACG remote controls into the 3-Door Programmable Garage Door Receiver Your 3-Door Programmable Receiver can recognize as many as 8 different Clifford remote controls with Anti-CodeGrabbing (ACG). Please note that this product will not work with older Clifford remote controls. ACG Remote controls are available from your local Clifford dealer or you may call the Clifford Customer Service Department toll-free at (800) 824-3208. To Add a new ACG Remote Control to the Programmable Receiver: 1. To control output 1, tap the blue button on the face of the 3-Door Programmable Receiver until the red LED for output 1 illuminates. Press the Clifford ACG remote control button (or channel) that you want to use to activate garage door opener #1. [. . . ] Repeatedly tap the button on the face of the Programmable Receiver until the LED illuminates next to the output number that you wish to be with a latched output. Press and hold for at least 5 seconds the button on the Clifford remote control. The LED will blink twice, then turn off to indicate that output will provide a latched ground signal. Repeat steps 1 and 2 for any other outputs that will have a latched output. How to switch an output from latched to pulsed: 1. [. . . ]