Reminder Does Not Activate When Pressing Lock/Unlock on Remote

HAZARD AND HORN REMINDER DOES NOT ACTIVATE PROPERLY WHEN PRESSING LOCK OR UNLOCK BUTTON OF REMOTE CONTROLLER, 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 smart entrance control unit receives LOCK or UNLOCK signal from remote controller with all doors closed, hazard warning lamp flashes and horn sounds as a reminder. (Horn can be activated or deactivated.) If one or more doors are open, the hazard and horn reminder will not operate.
The hazard and horn reminder has C mode (horn can be activated) and S mode (horn cannot be activated). Hazard and horn reminder mode can be changed using CONSULT-II WORK SUPPORT mode.

Possible Cause
- Circuit open or short
- Multi-remote control relay
- Door switch
- Remote controller

Diagnostic Repair Procedure (for confirmed incidents)
1. Check remote controller function: Use CONSULT-II DATA MONITOR in MULTI REMOTE ENT to confirm that LK/UN BTN ON indicates ON when LOCK and UNLOCK buttons are pushed at the same time. Confirm OFF when the other buttons are pushed.
a. Replace remote controller.
2. Check whether hazard indicator flashes with hazard switch ON.
3. Check hazard reminder operation: Perform CONSULT-II ACTIVE TEST in MULTI REMOTE ENT. Confirm that hazard indicator illuminates when HAZARD is ON.
a. Check power supply to multi-remote control relay.
b. Check circuit between multi-remote control relay and smart entrance control unit: Continuity/No shorts to ground.
c. Check multi-remote control relay component test.
d. Check circuits between multi-remote control relay and turn signal lamps.
4. Check whether horn sounds with horn switch ON.
5. Check horn reminder setting. (Horn reminder can be activated or deactivated.)
6. Check horn reminder operation: Perform CONSULT-II ACTIVE TEST in MULTI REMOTE ENT. Confirm that horn operates when MULTI REM HRN is ON.
a. Check circuit between horn relay and smart entrance control unit.
7. Check door switch input signal: Use CONSULT-II DATA MONITOR in MULTI REMOTE ENT to confirm that DOOR SW-ALL indicates ON when any doors are open. Confirm OFF when all doors are closed.
a. Check circuit between smart entrance control unit and door switch: Continuity/No shorts to ground.
b. Check circuit between door switch and ground: Continuity.
c. Door component test: Continuity should exist when the switch is in the released (open) position; no continuity in the depressed (closed) position.