Deck Lid Operation; Door Lock Motor Replacement; Door Lock System Test; Electric Motor Test - DaimlerChrysler LH New Yorker 1994 Electronic Service Manual

8P - 2 POWER LOCKS
The power lock motors are also equipped with a
thermal protection system which prevents the motors
from burning out. The motors may chatter if they are
continuously activated.

DOOR LOCK SYSTEM TEST

For complete testing of the automatic door lock
systems, refer to the proper Body Diagnostic Proce-
dures Manual.
WIRING VOLTAGE TEST
The following wiring test sequence determines
whether or not voltage is continuous through the
body harness to switch.
(1) Remove left side switch from door trim panel.
(2) Carefully separate multiple terminal block on
wiring harness from switch body.
(3) Connect one lead of test light to a ground termi-
nal:
• Black Wire
• Touch other test light lead to Red Wire terminal.
• If test light comes on, the wiring circuit between
the battery and switch is functional.
• If test light does not come on, check 30 amp circuit
breaker or for a open circuit.
SWITCH TEST
Remove the switch from its mounting location. Us-
ing an ohmmeter, refer to Fig. 1 to determine if
continuity is correct in the Lock and Unlock switch
positions. If these results are not obtained, replace
the switch.
Fig. 1 Door Lock Switch Continuity Test

ELECTRIC MOTOR TEST

Make certain battery is in normal condition before
circuits are tested.
To determine which motor is faulty, check each
individual door for electrical lock and unlock or dis-
connect the motor connectors one at a time, while
operating the door lock switch. In the event that none
of the motors work, the problem maybe caused by a
shorted motor, or a bad switch. Disconnecting the
defective motor will allow the others to work.
To test an individual door lock motor, disconnect the
electrical connector from the motor. To lock the door,
connect a 12 volt power source to the positive pin of
the lock motor and a ground wire to the other pin
(Fig. 2). To unlock the door reverse the wire connec-
tions at the motor pin terminals. If these results are
NOT obtained, replace the motor.
Fig. 2 Door Lock Motor
DOOR LOCK SYSTEM TEST
For complete testing of the body automatic door
lock systems, refer to the proper Body Diagnostics
Manual.

DOOR LOCK MOTOR REPLACEMENT

(1) Remove door trim panel, refer to Group 23,
Body for removal procedures.
(2) Disconnect motor linkage at the latch/lock mo-
tor (Fig. 2).
(3) Disconnect motor wire connector.
(4) Remove latch/lock assembly attaching screws
and remove assembly.

DECK LID OPERATION

For vehicles equipped with electric deck lid release.
TEST
(1) Confirm solenoid lead wire is connected and 10
volts or more are available at solenoid.
(2) Provide proper ground through latch mounting
screws.
(3) Remove latch and examine plunger. Plunger
should spring back when pressed.