De-Synchronizing Transmitter
DE-SYNCHRONIZATION OF IRCL1. In the event one of the infrared transmitters is lost, that transmitter can be de-synchronized, so that the IRCL control module will no longer recognize or respond to it.
2. To de-synchronize the system, ground the IRCL pin in the data link connector (X11/4) for 30-40 seconds with the ignition ON. Model 140 can also be de-synchronized using the impulse counter scan tool or the Hand-Held Tester (HHT).
3. After de-synchronization, the remaining infrared transmitters must be synchronized. Thus, if an IR transmitter is lost, only the mechanical locks need replacement to restore the vehicle's security.
Note: The system must be re-synchronized after replacing a transmitter.