1998 MITSUBISHI MONTERO Service Manual

Montero
1) Disconnect door lock cylinder switch connector. Set door
lock switch in UNLOCK position. Continuity should be present between
switch terminals No. 1 (Black/Blue wire) and No. 2 (Black wire).
2) Set door lock switch in LOCK position. Continuity should
be present between switch terminals No. 2 (Black wire) and No. 3
(Black/Red wire). Continuity should not be present in any of the
terminals with switch in OFF position.
3000GT (Left Side)
1) Disconnect door lock cylinder switch connector. Set door
lock switch in LOCK position. Continuity should be present between
switch terminals No. 2 (Black wire) and No. 3 (Light Green/White
wire).
2) Set door lock switch in UNLOCK position. Continuity should
be present between switch terminals No. 1 (Green/Blue wire) and No. 2
(Black wire). Continuity should not be present in any of the terminals\
with switch in OFF position.
3000GT (Right Side)
1) Disconnect door lock cylinder switch connector. Set door
lock switch in LOCK position. Continuity should be present between
switch terminals No. 1 (Green/White wire) and No. 2 (Black wire).
2) Set door lock switch in UNLOCK position. Continuity should
be present between switch terminals No. 2 (Black wire) and No. 3
(Green/White wire). Continuity should not be present in any of the
terminals with switch in OFF position.
DOOR LOCK SWITCH
Main Switch (Montero)
1) Remove door lock switch from door. Set door switch in LOCK
position. Continuity should be present between switch terminals No. 5
and 12. See Fig. 1.
2) Set door lock switch in UNLOCK position. Continuity should
be present between switch terminals No. 10 and 12.
3) Set door lock switch in OFF position. Continuity should
not be present in any terminals. Replace main door lock switch if
continuity is not as specified.
Main Switch (3000GT W/Power Window)
1) Disconnect door lock switch connector. Set door lock
switch in LOCK position. Continuity should be present between switch
terminals No. 6 and 7. See Fig. 3.
2) Set door lock switch in UNLOCK position. Continuity should
be present between switch terminals No. 5 and 6. Continuity should not
be present in any of the terminals with switch in OFF position.
Main Switch (3000GT W/O Power Window)
1) Disconnect door lock switch connector. Set door lock
switch in LOCK position. Continuity should be present between switch
terminals No. 2 and 3. See Fig. 5.
2) Set door lock switch in UNLOCK position. Continuity should
be present between switch terminals No. 2 and 5. Continuity should not
be present in any of the terminals with switch in OFF position.
Sub-Switch (Montero)
1) Remove switch from door. Set door switch in LOCK position.
Continuity should be present between switch terminals No. 1 and 2. See
Fig. 2 .
2) Set door lock switch in UNLOCK position. Continuity should
be present between switch terminals No. 2 and 3.
3) Set door lock switch in OFF position. Continuity should

not be present in any terminals. Replace door lock switch if
continuity is not as specified.
Sub-Switch (3000GT W/Power Window)
1) Remove switch from door. Set door switch in LOCK position.
Continuity should be present between switch terminals No. 4 and 6. See
Fig. 4 .
2) Set door lock switch in UNLOCK position. Continuity should
be present between switch terminals No. 1 and 6.
3) Set door lock switch in OFF position. Continuity should
not be present in any of the terminals. Replace door lock switch if
continuity is not as specified.
Fig. 1: Inspecting Door Lock Main Switch (Montero)
Courtesy Of Mitsubishi Motor Sales Of America

Fig. 2: Inspecting Door Lock Sub-Switch (Montero)
Courtesy Of Mitsubishi Motor Sales Of America
Fig. 3: Inspecting Door Lock Main Switch (3000GT W/Power Window)
Courtesy Of Mitsubishi Motor Sales Of America

Fig. 4: Inspecting Door Lock Sub-Switch (3000GT W/Power Window)
Courtesy Of Mitsubishi Motor Sales Of America
Fig. 5: Inspecting Door Lock Switch (3000GT W/O Power Window)
Courtesy Of Mitsubishi Motor Sales Of America
KEYLESS ENTRY CONTROL UNIT

NOTE: Testing information for RKE control unit is not available
from manufacturer at time of publication. See
PIN VOLTAGE TESTS .
NOTE: If after all testing procedures are completed, system is not
functioning properly, replace unit with a known-good keyless
entry control unit and retest.
POWER DOOR LOCK CONTROL UNIT
Montero (W/O Remote Keyless Entry)
1) Remove power door lock control unit. See
COMPONENT LOCATIONS . Apply battery voltage to control unit terminal
No. 8 (Red/Yellow wire). See WIRING DIAGRAMS.
2) Jumper control unit terminals No. 4 (Black wire), No. 5
(Blue/White wire), and No. 7 (Black/Yellow wire) to battery negative\
terminal. Connect an analog voltmeter between ground and terminal No.
3 (Blue/Red wire). Set voltmeter to DC volts.
3) Remove jumper from control unit terminal No. 5 or 7.
Voltmeter needle should deflect.
4) Jumper control unit terminals No. 4 (Black wire) and No. \
5
(Blue/White wire) to ground. Connect voltmeter between ground and
terminal No. 3 (Blue/Red wire). Jumper control unit terminal No. 7
(Black/Yellow wire) to ground. Voltmeter needle should deflect.
5) Jumper control unit terminal No. 4 (Black wire) to ground\
.
Connect voltmeter between ground and control unit terminal No. 3
(Blue/Red wire). Jumper control unit terminal No. 7 (Black/Yellow
wire) to ground. Voltmeter needle should not deflect.
6) Check if voltage is present between battery ground and
control unit terminals No. 2 (Black/Blue wire) and No. 6 (Black/Red
wire). Battery voltage should be present. If circuits do not test as
specified, replace door lock control unit.
BACK DOOR (LIFTGATE) LOCK ACTUATOR
Montero
Access door lock actuator. See DOOR LOCK ACTUATOR R & I under
REMOVAL & INSTALLATION. Disconnect back door actuator harness
connector. Remove actuator if needed. Connect positive lead of 12-volt
power source to actuator connector. Actuator should operate when
negative lead contacts actuator housing. Replace actuator as needed.
PIN VOLTAGE TESTS

Fig. 6: Pin Voltage Chart (Montero)
Courtesy Of Mitsubishi Motor Sales Of America

Fig. 7: Pin Voltage Chart (3000GT)
Courtesy Of Mitsubishi Motor Sales Of America
REMOVAL & INSTALLATION

DOOR LOCK ACTUATOR R & I
Removal & Installation (Except Back Door)
Remove inner door panel. Remove delta cover (access to mirror
mounting). Remove door light, switch panel and armrest. Remove
mounting screws, and slide panel up to remove. Remove waterproof film.
Remove actuator. To install, reverse removal procedure.
Removal & Installation (Back Door)
Remove door pull handle. Remove window trim. Remove door
release handle trim. Remove tool kit (if equipped). Remove door panel
and waterproof film. Remove actuator. To install, reverse removal
procedure.
WIRING DIAGRAMS