Mitsubishi Montero Sport (2004+). Manual — part 462
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INSPECTION PROCEDURE 2: All Windows does not Open or Close Using the Power Window
Main/Sub Switch <Vehicles with keyless entry system>.
Power Window Switch Circuit
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.
CIRCUIT OPERATION
The ETACS-ECU turns ON the power window relay
when the ignition switch (IG1) is turned ON.
.
TECHNICAL DESCRIPTION (COMMENT)
The power window relay or the ETACS-ECU may be
defective.
.
TROUBLESHOOTING HINTS
• Malfunction of the power window relay
• Malfunction of the ETACS-ECU
• Malfunction of the power window main switch
• Damaged harness wires or connectors
DIAGNOSIS
Required Special Tools:
• MB991223: Harness Set
• MB991529: Diagnostic Trouble Code Check Harness
• MB991958: Scan Tool (MUT-III Sub Assembly)
• MB991824: Vehicle Communication Interface (V.C.I.)
• MB991827: MUT-III USB Cable
• MB991911: MUT-III Main Harness B
STEP 1. Choose method of ETACS-ECU input signal
check.
Q: Is the ETACS-ECU input signal check performed by
scan tool MB991958 or a voltmeter?
By Scan tool MB991958 : Go to Step 2.
By a Voltmeter : Go to Step 3.
AC309309AD
C-40
CONNECTORS: C-40, C-41
C-41
AC003622
CONNECTOR: C-75X
AE
C-75X
AC004311
D-08
D-11
JUNCTION BLOCK
(REAR)
CONNECTORS: D-08, D-11, D-26
BI
D-26 (B)
AC004320
FRONT
DOOR
(LH)
CONNECTOR: F-05
AE
F-05
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STEP 2. Check the ETACS-ECU input signal from the
ignition switch (by using the pulse check) (by using
MB991958).
Check the ETACS-ECU input signal ignition switch (IG1) by
using scan tool MB991958.
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 scan tool MB991958 to the data link connector.
(2) Operate scan tool MB991958 as follows:
1. Select "SYSTEM SELECT."
2. Select "SWS."
3. Select "PULSE CHECK."
(3) Turn the ignition switch (IG1) to ''ON'' position.
(4) Check that scan tool MB991958 sounds
Q: Does the tone alarm of scan tool MB991958 sound when
the input signal enters?
YES : Replace the ETACS-ECU and then go to Step 7.
NO : Go to Step 4.
STEP 3. Check the ETACS-ECU input signal from the
ignition switch (by using a voltmeter).
(1) Use special tool MB991529 to connect a voltmeter between
ground terminal 4 or 5 and ETACS-ECU terminal 9 of the
data link connector.
(2) Check that the voltmeter indicator deflects once when the
ignition switch (IG1) is turned to ''ON'' position.
Q: Does the voltmeter indicator deflect?
YES : Replace the ETACS-ECU and then go to Step 7.
NO : Go to Step 4.
AK303629AB
MB991911
MB991827
MB991824
16-PIN
7
6
5
4
3
2
1
14
13
12
11
10
9
8
16
15
AC004323
MB991529
GROUND TERMINAL
ETACS TERMINAL
AB
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STEP 4. Check ETACS-ECU connector D-11 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q: Is the connector in good condition?
YES : Go to Step 5.
NO : Repair or replace the damaged components. Refer to
GROUP 00E
, Harness Connector inspection.
Then go to Step 21.
STEP 5. Measure the ETACS-ECU power supply circuit
ignition switch (IG1) at ETACS- ECU connector D-11.
(1) Remove the ETACS-ECU, and measure at ETACS-ECU
connector D-11 (junction block side).
(2) Measure the voltage between terminal 3 and ground.
Q: Is the measured voltage approximately 12 volts (battery
positive voltage)?
YES : Go to Step 7.
NO : Go to Step 6.
AC201084
JUNCTION
BLOCK (REAR)
D-11
COMPONENT SIDE
AB
CONNECTOR: D-11
AC201084
JUNCTION
BLOCK (REAR)
D-11
COMPONENT SIDE
AB
CONNECTOR: D-11
12 1110 9 8 7 6 5 4
3 2 1
AC005048
D-11 HARNESS CONNECTOR:
COMPONENT SIDE
AD
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