[Elantra GT] Central Locking Problem

[John Gordon]

>From: Hadas Ofer-BOH006 <Ofer.Hadas at motorola.com>
>Date: Sat Jun 10 02:26:50 CDT 2006
>To: elantra_gt at gwebworks.com
>Subject: [Elantra GT] Central Locking Problem

>Hi.
>My Elantra 2003 GL has a Central Locking problem.
>Here are the facts:
>

     Here is an exerp from the Hyundai Webtech site on power door 
operation on the 2003 Elantra. Keep in mind there is a connector
on the passenger door that has a tendency to corrode and cause 
the problem you are having. Some people have had the dealer
replace the whole door harness on that side. The module that
controls the door lock operation is called ETACS:


Power Door Lock
CIRCUIT DESCRIPTION 

Battery voltage is supplied to both the door lock and unlock relay in the door lock control module at all times from fuse 15. There is a metal rod that links the left front door lock/unlock switch and the left front door lock actuator. When the left front door lock/unlock switch is pushed to lock, the metal rod then pushes the actuator switch in the left front door lock actuator to the lock position. The ETACM receives the lock input signal and then supplies power to the left/right rear, tail gate lock actuator (5door only) and right front door lock actuator.


Each motor is grounded through a limit switch in the appropriate door lock actuator. The ETACM will de-energize the relay coil when the limit switches in the door lock actuators move to the unlock position. The door locks work similarly when the left front door lock switch is pushed to unlock, except that the electrical current goes through each motor in the opposite direction.



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  John G.