Mitsubishi Montero Sport (2004+). Manual — part 491
SEAT BELT DIAGNOSIS
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INTERIOR
52A-9
STEPS 4. Check the harness wires between ignition switch
(IG1) and ETACS-ECU connector D-11 (terminal No. 3).
NOTE: Check the intermediate connector D-08, and then the
wiring harness. If the intermediate connector D-08 is damaged,
repair or replace it. Refer to GROUP 00E, Harness Connector
Inspection
. If the connector has been repaired or
replaced, go to Step 7.
Q: Is the harness wore between the ignition switch (IG
1
)
and the ETACS-ECU connector D-11 (terminal No. 3) in
good condition?
YES : Go to Step 7.
NO : Repair them. Then go to Step 7.
STEP 5. Measure the ground line resistance at the junction
block connector D-11.
Check for continuity between terminal 10 and the ground.
• The measured value should be 2 ohms or less.
Q: Does the measured resistance value correspond with
this range?
YES : Go to step 7.
NO : Go to Step 6.
AC201085
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CONNECTORS: D-08, D-11
AB
D-08
D-11
COMPONENT SIDE
COMPONENT SIDE
JUNCTION BLOCK (REAR)
AC003231
D-11 HARNESS CONNECTOR:
COMPONENT SIDE
AC
SEAT BELT DIAGNOSIS
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INTERIOR
52A-10
STEP 6. Check the harness wires between the ETACS-ECU
connector D-11 (terminal No. 10) and the ground.
NOTE: Check the intermediate connector D-13, and then the
wiring harness. If the intermediate connector D-13 is damaged
repair or replace it. Refer to GROUP 00E, Harness Connector
Inspection
. Then go to Step 7.
Q: Are the harness wires between the ETACS-ECU
connector D-11 (terminal No.10) and the ground in good
condition?
YES : Go to Step 7.
NO : Repair it. Then go to Step 7.
STEP 7. Retest the system.
Q: Does the seat belt tone alarm sound, or does the seat
belt warning light illuminate or flash?
YES : This procedure is complete. (If no malfunctions are
found in all steps, an intermittent malfunction is
suspected. Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points
− How to
Cope with Intermittent Malfunction
.)
NO : There is no action to be taken.
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AC201086
SEAT BELT DIAGNOSIS
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INTERIOR
52A-11
INSPECTION PROCEDURE 2: When the Seat Belt is not Fastened and the Ignition Switch is Turned to
the "ON" Position, the Seat Belt Warning Light Illuminates or Flashed, but the Seat Belt Tone Alarm
does not Sound.
.
CIRCUIT OPERATION
• The system determines whether the seat belt is
fastened by the seat belt switch.
• The system flashes the seat belt warning light for
6 seconds after the ignition switch is turned "ON,"
and also sounds the seat belt tone alarm if the
seat belt is not fastened.
AC004181AB
Seat Belt Switch Circuit
AC003228AC
CONNECTORS: D-11, D-13
D-13
D-11
JUNCTION
BLOCK (REAR)
AC003235
E-42
E-35
CONNECTORS: E-35, E-42
AB
SEAT BELT DIAGNOSIS
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INTERIOR
52A-12
.
TECHNICAL DESCRIPTION (COMMENT)
There may be a malfunction in the seat belt buckle
switch circuit.
.
TROUBLESHOOTING HINTS
• Malfunction of the seat belt buckle switch
• Malfunction of the ETACS-ECU
• Damaged wiring harnesses or connectors
DIAGNOSIS
.
Required Special Tols:
• 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 (Vehicles without
CAN communication system)
• MB991529: Diagnostic Trouble Code Check Harness
.
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