Mitsubishi 3000GT Service Manual page 1054

BODY - Door Handle and Latch
INSPECTION
DOOR KEY CYLINDER UNLOCK SWITCH CHECK
The key cylinder unlock switch is normal if there is not continuity
between terminals 1 and 2 when the key is turned approx.
and there is continuity when it is turned further.
Insert the key and turn it to the LOCK or UNLOCK position
to check for continuity as follows:
<Vehicles with central door locking system> or <Vehicles with
central door locking system and theft-alarm system>
Switch position
00002327
Door key
cylinder
unlock
switch
<Vehicles with theft-alarm system only>
TSB Revision
L.H. LOCK
side
Neutral
0
UNLOCK
R.H. LOCK 0
side
Neutral
,
UNLOCK
I
Terminal No.
1 2 3
0 0
0
0
0
Terminal No. 1