Mitsubishi Montero (2004+). Manual — part 723
SYMPTOM PROCEDURES
TSB Revision
SIMPLIFIED WIRING SYSTEM (SWS)
54B-149
STEP 1. Use scan tool MB991958 to select "ECU COMM
CHK" on the SWS monitor display.
Check the ETACS-ECU.
CAUTION
To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect the special tool. Refer to "How to connect SWS
monitor
(2) Connect SWS monitor kit MB991862 to the data link
connector (13-pin).
(3) Turn the ignition switch to the "ON" position.
(4) Operate scan tool MB991958 according to the procedure
below to display "ECU COMM CHK."
1. Select "SYSTEM SELECT."
2. Select "SWS."
3. Select "SWS MONITOR."
4. Select "ECU COMM CHK."
(5) Scan tool MB991958 should show "OK" on the "ECU
COMM ECU" menu for the ETACS ECU menu.
Q: Is "OK" displayed on the "ETACS ECU" menu?
"OK" is displayed for all the items : Go to Step 2.
"NG" is displayed on the "ETACS ECU" menu : Refer to
Inspection Procedure A-3 "Communication with
ETACS-ECU is not possible
STEP 2. Check the input signal by using "DATA LIST"
menu of the SWS monitor.
(1) Turn the ignition switch to the "ON" position before checking
input signals from the ignition switch (IG1).
(2) Operate scan tool MB991958 according to the procedure
below to display "ETACS ECU."
1. Select "SYSTEM SELECT."
2. Select "SWS."
3. Select "SWS MONITOR."
4. Select "DATA LIST."
5. Select "ETACS ECU."
(3) Check that normal conditions are displayed on the item
described in the table below.
Q: Is the scan tool display "IG SW (IG1)" as normal
condition?
YES : Go to Step 3.
NO : Refer to Inspection Procedure O-2 "ETACS-ECU
does not receive a signal from the ignition switch
(IG1)
AC309091
MB991911
MB991827
MB991824
AB
MB991806
MB991862
DATA LINK
CONNECTOR
(16-PIN)
DATA LINK
CONNECTOR
(13-PIN)
ITEM NO.
ITEM NAME
NORMAL CONDITION
ITEM 30
IG SW (IG1)
ON
AC309091
MB991911
MB991827
MB991824
AB
MB991806
MB991862
DATA LINK
CONNECTOR
(16-PIN)
DATA LINK
CONNECTOR
(13-PIN)
SYMPTOM PROCEDURES
TSB Revision
SIMPLIFIED WIRING SYSTEM (SWS)
54B-150
STEP 3. Check power window relay connector D-219 for
loose, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Is power window relay connector D-219 in good
condition?
YES : Go to Step 4.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
. Verify that the power windows function
should now work normally.
STEP 4. Check the power window relay.
Properly identify and remove the relay from the under-dash
junction block and test the relay using the chart as a guide.
Q: Is the power window relay in good condition?
YES : Go to Step 5.
NO : Replace the power window relay. Verify that the
power windows function should now work normally.
AC203850AB
CONNECTOR: D-219
JUNCTION BLOCK
(FRONT VIEW)
D-219
1
2
3
4
5
JUNCTION
BLOCK SIDE
D-219
BATTERY CONNECTION
TESTER
CONNECTION
SPECIFIED
CONDITION
Not applied
4
− 5
Open circuit
• Connect terminal No.3
and the positive battery
terminal
• Connect terminal No.1
and the negative battery
terminal
4
− 5
Less than 2
ohms
AC203858AC
1 2 3
4
5
POWER WINDOW
RELAY D-219
CONNECTOR: D-219
JUNCTION BLOCK
(FRONT VIEW)
5
4
1
3
SYMPTOM PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-151
STEP 5. Measure at power window relay connector D-219
in order to check the fusible link (4) line of power supply
system to power window relay.
(1) Disconnect power window relay connector D-219, and
measure at the junction block side.
(2) Measure the voltage between terminal numbers 3, 5 and
ground.
• The voltage should be approximately 12 volts (battery
positive voltage).
Q: Is the measured voltage approximately 12 volts (battery
positive voltage)?
YES : Go to Step 7.
NO : Go to Step 6.
AC203850AB
CONNECTOR: D-219
JUNCTION BLOCK
(FRONT VIEW)
D-219
1
2
3
4
5
JUNCTION
BLOCK SIDE
D-219
1
2
3
4
5
ACX01571AB
CONNECTOR D-219
(JUNCTION BLOCK SIDE)
SYMPTOM PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-152
STEP 6. Check the wiring harness between power window
relay connector D-219 (terminal 5) and fusible link (4).
ACX02274
FUSIBLE LINK (4)
AD
BATTERY
AC204191
CONNECTORS : D-219, D-221
D-219
D-221
BB
D-219
HARNESS SIDE
JUNCTION BLOCK SIDE
D-221
3
1
4
6 5
7
8
2
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