Panic Alarm Does Not Activate, But All Other Functions Are Ok

PANIC ALARM DOES NOT ACTIVATE, BUT ALL OTHER FUNCTIONS ARE OK

System Description
Remote controller signal is inputted to smart entrance control unit. (The antenna of the system is combined with smart entrance control unit.)
The multi-remote control system controls operation of the power door lock, interior lamp, panic alarm, trunk lid opener and hazard and horn reminder.
When ignition key is not inserted in key cylinder, multi-remote control system turns on and OFF horn and headlamp intermittently with input of PANIC ALARM signal from remote controller.
The alarm automatically turns OFF after 25 seconds or when smart entrance control unit receives any signal from remote controller.

Possible Cause
- Remote controller
- Theft warning system
- Key switch
- Circuit open short

Diagnostic Repair Procedure (for confirmed incidents)
1. Check remote controller function: Use CONSULT-II DATA MONITOR in MULTI REMOTE ENT to confirm that PANIC BTN indicates ON when PANIC button is pushed. Confirm OFF when the other buttons are pushed.
a. Replace remote controller.
2. Check theft warning operation: Open the front window. Close all doors and lock doors with remote controller.
Wait till security lamp begins to flash every 2.6 seconds, then open any door. The theft warning horns should sound and the headlamps should flash.
3. Check key switch input signal: Use CONSULT-II DATA MONITOR in MULTI REMOTE ENT to confirm that KEY ON SW indicates ON when key is inserted into ignition key cylinder. Confirm OFF when key is removed from ignition key cylinder.
a. Check power supply to the key switch.
b. Check circuit between the key switch and smart entrance control unit: Continuity/No shorts to ground.
c. Key switch component test: Continuity should exist when the key is inserted; no continuity with the key removed.