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RF-503 TRANSMITTER PROGRAMING 

 
I. PROGRAMMING THE REMOTE TRANSMITTERS 

 
Recheck all connections in the installation, and reconnect the battery.  The transmitters cannot be 
programmed without battery voltage. 
 
The RF-503 includes two (2), 4 button transmitters which must be programmed to the alarm BEFORE 
any alarm function is possible. 
 
NOTE: EACH TIME THE PROGRAMMING MODE IS ENTERED, ALL PREVIOUSLY 
PROGRAMMED TRANSMITTER CODES WILL BE AUTOMATICALLY DELETED AND MUST 
BE REPROGRAMMED.  This is an important safety feature.  If any transmitter is lost or stolen, enter 
the programming mode and reprogram all existing transmitters.   
 

NOTE 1:

 Transmitters can only be programmed by entering the programming mode 

 
NOTE 2:

 Transmitter codes will remain in memory if power is disconnected from the RF-503. 

 
To program the RF-503 transmitters, follow the directions as written below, IN THEIR EXACT 
ORDER!  Have all transmitters readily available. 
 
1. Flip the VALET/OVERRIDE switch to its “ON” position. 
 
2. Turn the ignition switch to “ON”, then “OFF”, then IMMEDIATELY flip the VALET/OVERRIDE 
switch to “OFF”, “ON/OFF, “ON/OFF”.  The vehicle horn or siren will chirp one (1) time. 
 
3. Turn the ignition switch “ON/OFF”, “ON/OFF”.  The vehicle horn or siren will chirp two (2) times.  
You are now in the programming mode. 
 
4. Press Button I on one of the remote transmitters until the vehicle horn or siren responds with a 
confirming chirp.  The first transmitter is now programmed. 
 
5. WITHIN FIVE (5) SECONDS, press Button I on the second transmitter until the vehicle horn or siren 
responds with a confirming chirp.  The second transmitter is now programmed.   
 

NOTE:

 If the RF-503 does not receive a second transmitter code to learn within five (5) seconds, it will 

automatically close the programming mode and resume to normal operation.  If this happens, it will be 
necessary to repeat steps 1 through 5 and reprogram ALL transmitters. 
 
The RF-503 can learn up to four (4) transmitter codes.  If later, optional, third and forth transmitters are 
to be programmed, follow programming steps 1 through 5 and reprogram ALL transmitters. 
 
If you are coding three of four transmitters during a new installation, continue programming transmitters 
three and four, as described for transmitter two in step 5. 
 

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