Mitsubishi Montero (2004+). Manual — part 741
SYMPTOM PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-221
STEP 11. Check the harness wire between sunroof switch
connector F-01 (terminal 4) and ground.
NOTE: Also check intermediate connectors F-24 and D-26 for
loose, corroded or damaged terminals, or terminals pushed
back in the connectors. If intermediate connectors F-24 and
D-26 are damaged, repair or replace the damaged compo-
nent(s) as described in GROUP 00E, Harness Connector
Inspection
.
Q: Is the harness wire between sunroof switch connector
F-01 (terminal 4) and ground in good condition?
YES : No action is necessary and testing is complete.
NO : The wiring harness may be damaged or the
connector(s) may have loose, corroded or damaged
terminals, or terminals pushed back in the connector.
Repair the wiring harness as necessary. The sunroof
function should now work normally.
AC203849AB
F-01
(HARNESS SIDE)
CONNECTOR: F-01
F-01 (B)
1
2
3
4
5
6
AC204170
CONNECTOR : D-26
AG
2 3
1
7
6
12
11
8
13
5
4
9 10
AC204484
AF
CONNECTOR: F-24
F-24
F-24
SYMPTOM PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-222
INSPECTION PROCEDURE F-2: Sunroof: Any of the sunroof switch positions is defective.
.
TECHNICAL DESCRIPTION (COMMENT)
The sunroof switch or the sunroof motor assembly
may be defective.
.
TROUBLESHOOTING HINTS
• The sunroof switch may be defective
• The sunroof motor assembly may be defective
• The wiring harness or connectors may have
loose, corroded or damaged terminals, or termi-
nals pushed back in the connector
DIAGNOSIS
Required Special Tools:
• MB991223: Harness Set
• 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
Sunroof Switch Circuit
SYMPTOM PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-223
Check the input signal (by using the pulse check mode of
the monitor.)
Check the input signals from the sunroof switch.
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 MB991502 to the data link connector
(16-pin).
(2) Operate scan tool MB991958 according to the procedure
below to display "PULSE CHECK."
1. Select "SYSTEM SELECT."
2. Select "SWS."
3. Select "PULSE CHECK."
(3) When each function of the sunroof switch is operated
(turned on), check that scan tool MB991958 sounds.
Q: Does scan tool MB991958 sound when the sunroof
switch is operated?
YES : Replace the sunroof motor assembly. The sunroof
function should now work normally.
NO : Refer to Inspection Procedure O-9 "ETACS-ECU
does not receive a signal from "UP, ""OPEN" or
"CLOSE/DOWN" switch
."
AC307591 AB
MB991911
DATA LINK
CONNECTOR
MB991824
MB991827
SYMPTOM PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-224
INSPECTION PROCEDURE F-3: Sunroof: Sunroof timer function does not work normally.
NOTE: This troubleshooting procedure requires the
use of scan tool MB991958 and SWS monitor kit
MB991862. For details on how to use the SWS mon-
itor, refer to "How to use SWS monitor
.
CIRCUIT OPERATION
• The sunroof timer function works according to the
signals from the following switches:
• Ignition switch (IG1): OFF
• Driver’s and passenger’s door switch: OFF
• Vehicle condition
• Ignition switch: LOCK position
• Driver’s and passenger’s door: Closed
• When a front door is opened and closed while the
sunroof timer function is on, the sunroof operative
duration will be changed.
.
TECHNICAL DESCRIPTION (COMMENT)
If the sunroof timer function does not work normally,
the input circuits from the switches described in
"CIRCUIT OPERATION", the sunroof motor assem-
bly, the ETACS-ECU or the SWS communication line
may be defective.
.
TROUBLESHOOTING HINTS
• The driver's or passenger's door switch may be
defective
• The sunroof motor assembly may be defective
• The wiring harness or connectors may have
loose, corroded or damaged terminals, or termi-
nals pushed back in the connector
DIAGNOSIS
Required Special Tools:
• MB991223: Harness Set
• 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
• MB991813: SWS Monitor Kit
• MB991806: SWS Monitor Cartridge
• MB991812: SWS Monitor Harness (For Column-ECU)
• MB991822: Probe Harness
Sunroof Timer Function
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