Mitsubishi Montero (2004+). Manual — part 721

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-141

STEP 2. Check the input signal by using "DATA LIST"
menu of the SWS monitor.
Check the input signals from the following switches:

• Driver’s door: open

• Front passenger’s door: close

(1) Operate scan tool MB991958 as follows:

1. Select "SYSTEM SELECT."
2. Select "SWS."
3. Select "SWS MONITOR."
4. Select "DATA LIST."
5. Select "ETACS ECU."

(2) Check that normal conditions are displayed on the items

described in the table below.

Q: The scan tool show the respective normal condition for

item "FRONT DOOR SW."
YES : Go to Step 3.
NO : Refer to Inspection Procedure O-5 "ETACS-ECU

does not receive signals from the front door switches

P.54B-520

."

ITEM NO.

ITEM NAME

NORMAL
CONDITION

ITEM 32

FRONT DOOR SW ON

AC309091

MB991911

MB991827

MB991824

AB

MB991806

MB991862

DATA LINK
CONNECTOR
(16-PIN)

DATA LINK
CONNECTOR
(13-PIN)

SYMPTOM PROCEDURES

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SIMPLIFIED WIRING SYSTEM (SWS)

54B-142

STEP 3. Check the input signal (by using the pulse check
mode of the monitor.)
Check the input signals from the following switches:

• Key reminder switch

• Driver's door lock actuator switch

(1) Operate scan tool MB991958 as follows:

1. Select "SYSTEM SELECT."
2. Select "SWS."
3. Select "PULSE CHECK."

(2) If the switches (see table below), which are applicable for

the input signal check, are operated, verify if scan tool
MB991958 sounds or not.

Q: Does scan tool MB991958 sound whenever the key

reminder switch and the driver’s door lock actuator
switch are operated?
Buzzer of scan tool MB991958 sounds normally :

Replace the ETACS-ECU. Verify that the forgotten
key prevention function works normally.

Scan tool MB991958 does not sound when the ignition
key is removed and reinserted : Refer to Inspection

Procedure O-1 "ETACS-ECU does not receive a
signal from the key reminder switch

P.54B-502

."

Scan tool MB991958 does not sound when the driver’s
door lock actuator switch is operated : Refer to

Inspection Procedure P-6 "ETACS-ECU does not
receive a signal from the driver's door lock actuator
switch

P.54B-587

."

ITEM NAME

CHECK CONDITIONS

Key reminder switch

Remove

Driver's door lock actuator
switch

Turn on and off the driver's
door lock actuator switch.

AC307591 AB

MB991911

DATA LINK

CONNECTOR

MB991824

MB991827

SYMPTOM PROCEDURES

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SIMPLIFIED WIRING SYSTEM (SWS)

54B-143

POWER WINDOWS

GENERAL DESCRIPTION CONCERNING THE POWER WINDOWS

M1549021900169

The following ECUs affect the functions and control
of the power windows.

Power window main switch function

Raises the driver’s power window
When the driver’s power window switch on the power window
main switch is pulled up, the system energizes its respective
power window motor, and then driver’s window glass rises.

Lowers the driver’s power window
When the driver’s power window switch on the power window
main switch is pushed down, the system energizes its respec-
tive power window motor, and then driver’s window glass low-
ers.

FUNCTION

CONTROL ECU

Power window main
switch function

Raises the driver’s power window

Power window main switch

Lowers the driver’s power window
Lowers the driver’s power window by one-shot down
function
Raises the passenger’s power window
Lowers the passenger’s power window

Power window sub
switch function

Raises the passenger’s power window

Power window sub switch

Lowers the passenger’s power window

Power window timer function

ETACS-ECU

AC106705

ON

OFF

ON

OFF

UPPER SIDE

POWER
WINDOW
MOTOR

POWER
WINDOW
MAIN
SWITCH

DRIVER'S
POWER WINDOW
SWITCH UPPER
SIDE

AH

AC106705

LOWER SIDE

POWER
WINDOW
MOTOR

POWER
WINDOW
MAIN
SWITCH

DRIVER'S
POWER WINDOW
SWITCH LOWER
SIDE

ON

OFF

ON

OFF

AI

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-144

Lowers the driver’s power window by one-shot down func-
tion
When the driver’s power window switch on the power window
main switch is pushed down fully, the system energizes its
respective power window motor, and then driver’s window
glass moves to its lowest position.

Raises the passenger’s power window
When the passenger’s power window switch on the power win-
dow main switch is pulled up, the system energizes its respec-
tive power window motor, and then passenger’s window glass
rises.

Lowers the passenger’s power window
When the passenger’s power window switch on the power win-
dow main switch is pushed down, the system energizes its
respective power window motor, and then passenger’s window
glass lowers.

Power window sub switch function

Raises the passenger’s power window
When the power window sub switch is pulled up, the system
energizes its respective power window motor, and then pas-
senger’s window glass rises.

AC106706

ON

OFF

ON

OFF

LOWER SIDE

POWER
WINDOW
MOTOR

POWER
WINDOW
MAIN
SWITCH

DRIVER'S
POWER
WINDOW
SWITCH
LOWER SIDE

AC

AC106705

UPPER SIDE

POWER
WINDOW
MOTOR

POWER
WINDOW
MAIN
SWITCH

ON

OFF

ON

OFF

PASSENGER'S
POWER WINDOW
SWITCH UPPER
SID

e

AJ

AC106705

LOWER SIDE

POWER
WINDOW
MOTOR

POWER
WINDOW
MAIN
SWITCH

ON

OFF

ON

OFF

AK

PASSENGER'S
POWER WINDOW
SWITCH LOWER
SIDE

AC106705

ON

OFF

ON

OFF

UPPER SIDE

POWER
WINDOW
MOTOR

PASSENGER'S
POWER
WINDOW
SUB SWITCH

UPPER SIDE

AL