Mitsubishi Montero Sport (2004+). Manual — part 570
THEFT ALARM
TSB Revision
CHASSIS ELECTRICAL
54-267
DIAGNOSIS
Required Special Tools:
• MB991223: Test 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 (Vehicles without
CAN communication system)
• MB991529: Diagnostic Trouble Code Check Harness
STEP 1. Check the ETACS-ECU power supply circuit.
Do all of the following functions work when the ignition switch is
turned to the "LOCK" (OFF) position?
• Ignition key reminder tone alarm function
• Light reminder tone alarm function
• Central door locking system
• Hazard warning light
• Dome light dimming function
• Power window timer function
Q: Do any of the functions work?
YES : Go to Step 2.
NO : Check the ETACS-ECU battery circuit. Refer to
Inspection Procedure 6.
STEP 2. Check the security indicator circuit at the
ETACS-ECU connector D-26.
(1) Disconnect the ETACS-ECU connector D-26 and measure
at the harness side.
(2) Connect terminal 32 to the ground.
Q: Does the security indicator light illuminate?
YES : Go to Step 8.
NO : Go to Step 3.
AC201902
1
2
8 7
4
10
5
11
12
6
9
3
CONNECTOR: D-26
AB
COMPONENT SIDE
JUNCTION BLOCK (REAR)
21
22
23
24
25
26
27
28
29
30
31
32
D-26 (B)
21
22
23
24
25
26
27
28
29
30
31
32
AC003844
D-26 HARNESS CONNECTOR:
COMPONENT SIDE
AC
THEFT ALARM
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CHASSIS ELECTRICAL
54-268
STEP 3. Check the security indicator light bulb.
(1) Remove the security indicator light.
(2) Follow the table below to check the security indicator light.
Q: Is the security indicator light in good condition?
YES : Go to Step 4.
NO : Replace it. The security indicator light should
illuminate, and the theft-alarm system should be
armed normally.
STEP 4. Check security indicator connector C-108 and
ETACS-ECU connector D-26 for loose, corroded or
damaged terminals, or terminals pushed back in the
connector.
Q: Are security indicator connector C-108 and ETACS-ECU
connector D-26 in good condition?
YES : Go to Step 5.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
BATTERY
VOLTAGE
TERMINAL NO.
TO BE
CONNECTED TO
BATTERY
SPECIFIED
CONDITION
Supplied
• Connect
terminal 1 to
the positive
battery
terminal
• Connect
terminal 2 to
the negative
battery
terminal
Illuminate
AC002840AB
AC201901
CONNECTOR: C-108
AB
COMPONENT SIDE
2
1
AC201902
1
2
8 7
4
10
5
11
12
6
9
3
CONNECTOR: D-26
AB
COMPONENT SIDE
JUNCTION BLOCK (REAR)
21
22
23
24
25
26
27
28
29
30
31
32
D-26 (B)
THEFT ALARM
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CHASSIS ELECTRICAL
54-269
STEP 5. Check the harness wire between security indicator
connector C-108 and ETACS-ECU connector D-26.
Q: Are the harness wire between security indicator
connector C-108 (terminal No.1) and ETACS-ECU
connector D-26 (terminal No.32) in good condition?
YES : Go to Step 6.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
STEP 6. Check the harness wire between security indicator
connector C-108 (terminal No.2) and fusible link number 8.
AC201901
CONNECTOR: C-108
AB
COMPONENT SIDE
2
1
AC201902
1
2
8 7
4
10
5
11
12
6
9
3
CONNECTOR: D-26
AB
COMPONENT SIDE
JUNCTION BLOCK (REAR)
21
22
23
24
25
26
27
28
29
30
31
32
D-26 (B)
AC201901
CONNECTOR: C-108
AB
COMPONENT SIDE
2
1
THEFT ALARM
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CHASSIS ELECTRICAL
54-270
NOTE: After checking junction block connector D-01 and D-14,
joint connector C-11 and IOD or storage connector A-54X,
check the wires. If junction block connector D-01 and D-14,
joint connector C-11 and IOD or storage connector A-54X are
damaged, repair or replace them. Refer to GROUP 00E, Har-
ness Connector Inspection
.
Q: Are the harness wire between security indicator
connector C-108 (terminal No.2) and fusible link number
8. in good condition?
YES : Go to Step 7 or 8.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
AC200774
2
1
CONNECTOR: A-54X
AB
A-54X
AC200777
1
2
3
4
5
6
14
17 16 15
13 12 1110 9
8
19
7
18
CONNECTOR: C-11
AB
C-11
AC200778
2
3
4
11 10 9 8 7
1
6
5
12
CONNECTOR: D-01
AB
D-01 COMPONENT SIDE
JUNCTION BLOCK (FRONT)
D-01
AC200779
1
2
3
4
5
7 6
16151413121110 9 8
CONNECTOR: D-14
AB
COMPONENT SIDE
JUNCTION BLOCK
(FRONT)
D-14 (B)
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