Mitsubishi Montero (2002-2004). Manual — part 318
SYMPTOM PROCEDURES
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SWS SYMPTOM PROCEDURES
54Bb-319
DIAGNOSIS
Required Special Tools:
• MB991223: Harness Set
• MB991502: Scan Tool (MUT-II)
• MB991862: SWS monitor kit
Use scan tool MB991502 to select "ECU COMM CHK" on
the SWS monitor display.
Check the following ECUs:
• ETACS-ECU
• Column-ECU
• Front-ECU
CAUTION
To prevent damage to scan tool MB991502, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991502.
(1) Connect scan tool MB991502 to the data link connector
(16-pin).
(2) Connect SWS monitor kit MB991862 to the data link
connector (13-pin).
(3) Turn the ignition switch to the "LOCK" (OFF) position.
(4) Operate scan tool MB991502 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 MB991502 should show "OK" on the "ECU
COMM CHK" menus for the "ETACS ECU", "COLUMN
ECU" and "FRONT ECU" menus.
Q: Is "OK" displayed on the "ETACS ECU", "COLUMN
ECU" and "FRONT ECU" menus?
"OK" are displayed for all the items : Replace the front-
ECU. Verify that the headlights and the taillights
illuminate normally.
"NG" is displayed on the "ETACS ECU" menu : Refer to
Inspection Procedure A-3 "Communication with
ETACS-ECU is not possible
."
"NG" is displayed on the "COLUMN ECU" menu : Refer
to Inspection Procedure A-2 "Communication with
column switch (column-ECU) is not possible
"NG" is displayed on the "FRONT ECU" menu : Refer to
Inspection procedure A-4 "Communication with front-
ECU is not possible
AC204222AB
16-pin
13-pin
MB991502
MB991862
SYMPTOM PROCEDURES
TSB Revision
SWS SYMPTOM PROCEDURES
54Bb-320
INSPECTION PROCEDURE J-6: Headlight and Taillight: Any of taillights, the position lights, the side
marker light or the license plate lights do not illuminate.
Taillights, Position Lights and License Plate Lights Circuit
SYMPTOM PROCEDURES
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SWS SYMPTOM PROCEDURES
54Bb-321
.
TECHNICAL DESCRIPTION (COMMENT)
If the position lights, the taillights, the side marker
lights or the license plate lights do not illuminate,
their bulb may be defective.
.
TROUBLESHOOTING HINTS
• The position light bulb may be defective
• The stop/taillight bulb may be defective
• The side marker light bulb may be defective
• The license plate light bulb may be defective
• The wiring harness or connectors may have
loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector
AC204183
CONNECTOR : A-07X
AG
AC204167
CONNECTOR : A-18
A-18(GR)
AN
AC204166
CONNECTOR : A-36
AO
A-36(GR)
AC204170
CONNECTORS : D-28, D-125
BR
D-28
D-125
AC204171
CONNECTOR : D-111
AG
AC204178
CONNECTOR : F-10
F-10(GR)
AJ
AC204179
CONNECTORS : G-02, G-09, G-10, G-12, G-16
G-02(B)
G-16(B)
G-12(B)
G-10
G-09(B)
AI
AC204182
CONNECTOR : I-04
AF
SYMPTOM PROCEDURES
TSB Revision
SWS SYMPTOM PROCEDURES
54Bb-322
DIAGNOSIS
Required Special Tool:
• MB991223: Harness Set
STEP 1. Verify the operation of each light.
Q: Which light does not illuminate?
taillight (LH), license plate light and side marker light
(LH) : Go to Step 2.
taillight (RH) and side marker light (RH) : Go to Step 4.
taillight (LH) and license plate : Go to Step 6.
position light : Go to Step 8.
position light (LH) : Go to Step 11.
position light (RH) : Go to Step 17.
taillight : Go to Step 23.
taillight (LH) : Go to Step 26.
taillight (RH) : Go to Step 32.
license plate lights : Go to Step 38.
side marker light (LH) : Go to Step 44.
side marker light (RH) : Go to Step 50.
All lights : Refer to Inspection Procedure J-1 "Tail lights do
not illuminate
STEP 2. Check rear combination light (LH) connector G-02
and front-ECU connector A-07X for loose, corroded or
damaged terminals, or terminals pushed back in the
connector.
Q: Are rear combination light (LH) connector G-02 and
front-ECU connector A-07X in good condition?
YES : Go to Step 3.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
. Verify that the taillight (LH), license plate
light and side marker light (LH) illuminates normally.
AC204183
CONNECTOR : A-07X
AB
2 1
3
4
6
7
8
9
5
11 10
RELAY BOX SIDE
AC204179
CONNECTOR : G-02
AB
HARNESS SIDE
G-02(B)
G-02(B)
1
4
2
3
5
6
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