Mitsubishi Montero (1998+). Manual - part 100

DOOR LOCKS - POWER & KEYLESS ENTRY 

1998 Mitsubishi Montero

         1998 ACCESSORIES & EQUIPMENT

         Mitsubishi - Keyless Entry & Power Door Locks

         Montero & 3000GT

         DESCRIPTION & OPERATION

         On 3000GT, power door locks are controlled by driver or

passenger switches which send signals to Electronic Timer Alarm

Control System (ETACS) ECU. ETACS-ECU sends appropriate signals to

individual door lock actuators through individual relays.

         The following features are incorporated in power door lock

systems that have an ETACS-ECU:

      *  Once locked door is closed, system will unlock door if key

         remains in ignition switch.

      *  Continuous switching between lock and unlock of door will

         disable system for about one minute.

         On Montero, power door lock actuator receives signal from

individual control relay that is operated by a switch incorporated in

actuator. On all models, all door locks are actuated with operation of

one lock.

         Montero and 3000GT offer optional keyless entry system. Use

of a 2-button portable remote control operates door locks within a

range of 13 ft. (4 m). Dome light flashes twice when doors are locked

and illuminates for 3 seconds when doors are unlocked. If, after 30

seconds, door(s) have not been opened when unlocked with keyless entry

system, doors will relock.

         COMPONENT LOCATIONS

COMPONENT LOCATIONS TABLE

Component                                           Location

ETACS-ECU

  3000GT  ........................  Behind Left Side Of Dash

Data Link Connector (DLC)  .......  Under Left Side Of Dash,

                                       Below Steering Column

Door Lock Actuator  ......................  Inside Each Door

Door Lock Relay

  Montero  .......................  Behind Left Side Of Dash

  3000GT

    No. 1  ........................  Under Left Side Of Dash

    No. 2  .................  Behind Left Rear Quarter Panel

Power Door Lock Control Unit

  Montero

    W/O RKE  ....................  Behind Left Side Of Dash,

                                              Behind Speaker

Receiver

  3000GT  .................  Behind Right Rear Quarter Panel

Remote Keyless Entry (RKE)

 Control Unit

   Montero  ...............  Behind Right Rear Quarter Panel

   3000GT  .................  Behind Left Rear Quarter Panel

         TRANSMITTER PROGRAMMING

NOTE:    Transmitter programming should be performed only after

         verifying that door lock operates normally using key.

NOTE:    Ensure ignition is off when connecting or disconnecting scan

         tool.

         Using Scan Tool (Montero & 3000GT)

         1) Connect scan tool to DLC. Close all doors. Turn ignition

switch to ACC position, then to OFF position. Press desired

transmitter switches (secret code), then press twice within 10 seconds

to register code.

         2) Lock and unlock door once. If there are 2 transmitters,

program the first, then the second transmitter using the same

procedure within one minute. After completing the second programming,

lock and unlock door once.

         3) Programming mode is finalized when programming of second

transmitter secret code is complete, one minute after setting secret

code, when scan tool is disconnected, when ignition is turned on or

when any door is opened.

         Without Scan Tool (Montero)

         1) Move code registration switch on RKE control unit to SET I

position. Press the LOCK or UNLOCK button on transmitter. Move code

registration switch on control unit to FIX position.

         2) Confirm that keyless entry system operates normally. If

system does not operate normally, repeat step 1). If 2 transmitters

are used, register code on SET II position on RKE control unit and set

in same manner as the first transmitter.

         TROUBLE SHOOTING

         POWER DOOR LOCK INOPERATIVE

         Operate door lock(s) with ignition switch in OFF position. If

door lock(s) do not operate, check for following possible causes:

      *  Burned fuse, circuit breaker or fusible link caused by short

         to body ground.

      *  Wire connector, or pin inside connector, disengaged at any

         connector or component in system.

      *  Defective ETACS-ECU (if equipped).

      *  Defective door lock switch, relay or actuator.

      *  Subfreezing weather conditions, mechanical failure, or

         corroded or misaligned assemblies.

         KEY REMINDER SYSTEM INOPERATIVE (ETACS-ECU CONTROLLED SYSTEM)

         With key inserted in ignition switch, lock driver’s or

passenger’s door and close door. If door locks do not unlock, check

for following possible causes:

      *  Defective key reminder switch or no input signal to

         ETACS-ECU.

      *  Defective front door switch or no input signal to ETACS-ECU.

      *  Defective vehicle speed sensor or no input signal to

         ETACS-ECU.

         INPUT SIGNAL

         Scan Tool Method (3000GT)

         Turn ignition off. Connect scan tool to DLC. Follow scan tool

manufacturer’s instructions. Turn ignition on. Perform ON/OFF

operation of each door lock or power window switch. If scan tool

buzzer sounds once, ECU input signal to corresponding switch circuit

is normal.

         Voltmeter Method (3000GT)

         Using Diagnostic Trouble Code Check Harness (MB991529),

connect harness to DLC terminals No. 4 and 5. Connect voltmeter to

harness. Turn ignition on. Perform ON/OFF operation of each door lock

or power window switch. If voltmeter pointer moves once, ECU input

signal from corresponding switch circuit is normal.

         COMPONENT TESTS

         * PLEASE READ THIS FIRST *

NOTE:    If after all testing procedures are completed, system is not

         functioning properly, substitute with a known-good ETACS-ECU

         and retest.

         DOOR LOCK ACTUATOR

         Left Front Door (Montero & 3000GT)

         1) Access left front door lock actuator. See

DOOR LOCK ACTUATOR R & I under REMOVAL & INSTALLATION. Disconnect

harness connector. Set actuator in LOCK position. Connect positive

lead of 12-volt power source to actuator terminal No. 1 (Blue/Red

wire) on Montero or terminal No. 3 (Blue/Red wire) on 3000GT. See

WIRING DIAGRAMS. Actuator should move to UNLOCK position when terminal

No. 3 (White/Black wire) on Montero or terminal No. 1 (Blue/Black

wire) on 3000GT is connected to ground.

         2) With actuator set in UNLOCK position, connect positive

lead of 12-volt power source to actuator terminal No. 3 (White/Black

wire) on Montero or terminal No. 1 (Blue/Black wire) on 3000GT. See

WIRING DIAGRAMS. Actuator should move to LOCK position when terminal

No. 1 (Blue/Red wire) on Montero or terminal No. 3 (Blue/Red wire) on

3000GT is connected to ground.

         3) On 3000GT, check for continuity between actuator terminals

No. 2 (Brown/Yellow wire) and No. 4 (Black wire). See  WIRING DIAGRAMS.

Continuity should be present with actuator set in UNLOCK position.

Continuity should not be present with actuator set to LOCK position.

         Right Front Door (Montero & 3000GT)

         1) Access right front door lock actuator. See

DOOR LOCK ACTUATOR R & I under REMOVAL & INSTALLATION. Disconnect

harness connector. Set actuator in LOCK position. Connect positive

lead of 12-volt power source to actuator terminal No. 3 (Blue/Red

wire) on Montero or terminal No. 1 (Blue/Red wire) on 3000GT. See

WIRING DIAGRAMS. Actuator should move to UNLOCK position when terminal

No. 1 (White/Black wire) on Montero or terminal No. 3 (Blue/Black

wire) on 3000GT is connected to ground.

         2) With actuator set in UNLOCK position, connect positive

lead of 12-volt power source to actuator terminal No. 1 (White/Black

wire) on Montero or terminal No. 3 (Blue/Black wire) on 3000GT. See

WIRING DIAGRAMS. Actuator should move to LOCK position when terminal

No. 3 (Blue/Red wire) on Montero or terminal No. 1 (Blue/Red wire) on

3000GT is connected to ground.

         3) On 3000GT, check for continuity between actuator terminals

No. 2 (Brown wire) and No. 4 (Black wire). See  WIRING DIAGRAMS.

Continuity should be present with actuator set in UNLOCK position.

Continuity should not be present with actuator set to LOCK position.

         Left Rear Door (Montero)

         1) Access and disconnect harness from left rear door lock

actuator. See DOOR LOCK ACTUATOR R & I under REMOVAL & INSTALLATION.

Set actuator in LOCK position. Connect positive lead of 12-volt power

source to actuator terminal No. 3 (Blue/Red wire). See  WIRING DIAGRAMS

. Actuator should move to UNLOCK position when terminal No. 1

(Blue/Black wire) is connected to ground.

         2) With actuator set in UNLOCK position, connect positive

lead of 12-volt power source to actuator terminal No. 1 (Blue/Black

wire). See WIRING DIAGRAMS. Actuator should move to LOCK position when

terminal No. 3 (Blue/Red wire) is connected to ground.

         Right Rear Door (Montero)

         1) Access and disconnect harness from right rear door lock

actuator. See DOOR LOCK ACTUATOR R & I under REMOVAL & INSTALLATION.

Set actuator in LOCK position. Connect positive lead of 12-volt power

source to actuator terminal No. 1 (Blue/Black wire). See

WIRING DIAGRAMS. Actuator should move to UNLOCK position when terminal

No. 3 (Blue/Red wire) is connected to ground.

         2) With actuator set in UNLOCK position, connect positive

lead of 12-volt power source to actuator terminal No. 3 (Blue/Red

wire). See WIRING DIAGRAMS. Actuator should move to LOCK position when

terminal No. 1 (Blue/Black wire) is connected to ground.

         DOOR LOCK POWER RELAY

         1) Remove door lock relay. See COMPONENT LOCATIONS. Check for

continuity between relay terminals No. 1, 3 and 5, and terminals No.

4, 7 and 8. See RELAY TERMINAL IDENTIFICATION table. Continuity should

be present.

         2) Apply positive battery voltage to relay terminal No. 7 and

ground to terminals No. 4 and 8. Check for continuity between relay

terminals No. 1 and 2, and terminals No. 2 and 3. See

RELAY TERMINAL IDENTIFICATION table. Continuity should be present.

Replace relay if continuity is not as specified.

RELAY TERMINAL IDENTIFICATION TABLE

Application &                                        Harness

Terminal No.                                      Wire Color

Montero

  1  ...........................................  Blue/Green

  2  ............................................  Red/White

  3  ..........................................  Blue/Orange

  4  ............................................  Black/Red

  5  ................................................  Black

  7  ............................................  Red/Black

  8  .........................................  Black/Yellow

3000GT (Relays No. 1 & 2)

  1  ...........................................  Blue/Black

  2  ............................................  Red/Black

  3  .............................................  Blue/Red

  4  ..........................................  Brown/White

  5  ................................................  Black

  7  ............................................  Red/Black

  8  ...........  Brown/Blue (No. 1) Or Yellow/Black (No. 2)

         DOOR LOCK CYLINDER SWITCH