er’s or passenger door cylinder lock to the lock posi-
tion, all doors will lock. This feature operates
differently on each door. Turn key in the driver’s door
to the unlock position once will unlock driver’s door
only. Turning the key a second time to the unlock
position within five seconds of the first time will
unlock all doors. Turn key once in the passenger’s
door to the unlock position will unlock all doors.
The lock/unlock operation will arm/disarm the
Vehicle Theft Security System and will also activate/
cancel the illuminated entry feature.
CHILD PROTECTION LOCK
The child protection locks are on the rear doors
only. The lock when engaged, will disable the inside
door handle from opening the door. The lock is part
of the latch/lock assembly. The lock is engaged by
moving a lever that is located on the rearward inside
edge of the door.
DOOR LOCK INHIBIT
With the key in the ignition switch in the ON or
OFF position and the driver’s door open the BCM
will ignore the command to lock the power door
locks. Once the key is removed, or the driver’s door is
closed, the body control module will allow the power
door locks to lock.
KEYLESS ENTRY SYSTEM
The system allows locking and unlocking of vehicle
door(s) by remote control using a hand held radio
transmitter.
DIAGNOSIS AND TESTING
DOOR LOCK MOTOR/LATCH
Ensure battery is in good condition before perform-
ing the circuit tests.
To determine which latch is faulty, check each indi-
vidual door for electrical lock and unlock or discon-
nect the latch connectors one at a time, while
operating the door lock switch. In the event that
none of the latches work, the problem maybe caused
by a short or a bad switch. Disconnecting the defec-
tive latch will allow the others to work.
To test an individual door latch, disconnect the
electrical connector from the latch. To lock the door,
connect a 12 volt power source to the positive pin of
the latch and a ground wire to the other pin (Fig. 1).
To unlock the door reverse the wire connections at
the latch pin terminals. If these results are NOT
obtained, replace the door latch assembly.
DOOR LOCK SWITCH
Remove the switch from its mounting location.
Using an ohmmeter, test door lock switch continuity.
Refer to (Fig. 2) and move the switch to the Lock and
Unlock positions. If the resistance values are not
obtained, replace the switch.
DOOR LOCK SYSTEM
For complete testing of the automatic door lock
systems, refer to the proper Body Diagnostic Proce-
dures Manual.
Fig. 1 Door motor/Latch Assembly
Fig. 2 Door Lock Switch Continuity Test
8P - 2 POWER LOCK SYSTEMS JA
DESCRIPTION AND OPERATION (Continued)
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