Power Door Lock Does Not Operate With Remote Controller

POWER DOOR LOCK DOES NOT OPERATE WITH REMOTE CONTROLLER

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.
Smart entrance control unit receives a LOCK signal from remote controller. Smart entrance control unit locks all doors with input of LOCK signal from remote controller. When an UNLOCK signal is sent from remote controller once, driver's door will be unlocked.
Then, if an UNLOCK signal is sent from remote controller again within five seconds, all other doors will be unlocked.

Possible Cause
- Remote controller battery
- Remote controller
- Circuit open or short

Diagnostic Repair Procedure (for confirmed incidents)
1. Check power door lock operation: Confirm that power door lock operates manually.
2. Check remote controller battery: Proper installation and voltage spec = 3 V or more.
3. Check power supply to smart entrance control unit.
4. Check ground circuit for the smart entrance control unit.
5. Check remote controller function: Use CONSULT-II DATA MONITOR in MULTI REMOTE ENT to confirm that LK BUTTON/SIG ON indicates ON when LOCK button is pushed. Confirm UN BUTTON/SIG ON indicates ON when UNLOCK button is pushed.
a. Replace remote controller.