SYMPTOM PROCEDURES
TSB Revision
SIMPLIFIED WIRING SYSTEM (SWS)
54B-93
Operating the front passenger’s door lock key cylinder
When you insert the ignition key to the front passenger’s door
lock key cylinder and turn the key counterclockwise to unlock
the door, the ETACS-ECU energizes its door unlock relay for
0.5 second to activate all the door lock actuators. Then all the
doors will be unlocked.
.
Operating the driver’s or front passenger’s door lock
switch
When the door is unlocked by driver’s or front passenger's door
lock switch, the ETACS-ECU energizes its door unlock relay for
0.5 second to activate all the door lock actuators. Then all the
doors will be unlocked.
.
Forgotten Key Prevention Function
If the driver's door is opened with the ignition key
inserted in the ignition key cylinder and then locked
(i.e., the unlock switch integrated in the driver's door
lock actuator is off, and the lock switch is on), the
ETACS-ECU turns on the unlock relay for 0.5 second
after approximately 0.3 second. This prevents the
door from being locked unintentionally. If the system
fails to unlock the door, the ETACS-ECU try to turn
on the unlock relay five times in maximum for 0.5
second every one second.
NOTE: The dotted line indicates that the system is
trying to turn on the unlock relay if the door can not
be unlocked.
AC203005AC
ON(UNLOCK)
OFF
ON
OFF
FRONT
PASSENGER'S
DOOR LOCK KEY
CYLINDER SWITCH
UNLOCK RELAY
OUTPUT
t: 0.5 second
t
ALL DOOR'S LOCK
ACTUATOR
UNLOCK
LOCK
AC203006AC
DRIVER'S OR
FRONT PASSENGER'S
DOOR LOCK
SWITCH
UNLOCK RELAY
OUTPUT
ON(LOCK)
ON(UNLOCK)
ON
OFF
t
t: 0.5 second
OFF
UNLOCK
LOCK
ALL DOOR'S LOCK
ACTUATOR
AC101499 AE
KEY REMINDER
SWITCH
DRIVER'S DOOR
SWITCH
DRIVER'S DOOR LOCK
ACTUATOR SWITCH
LOCK
UNLOCK
LOCK RELAY OUTPUT
UNLOCK RELAY OUTPUT
(OPEN)ON
(CLOSE)OFF
ON
OFF
ON
OFF
t : 0.3 second
T1 : 0.5 second
T2 : 1 second
(KEY REMOVED)
(KEY INSERTED)