Mitsubishi Montero (2002-2004). Manual — part 252
SYMPTOM PROCEDURES
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SWS SYMPTOM PROCEDURES
54Bb-55
INSPECTION PROCEDURE A-6: Communication with the RV meter is not possible.
NOTE: This troubleshooting procedure requires the
use of scan tool MB991502 and SWS monitor kit
MB991862. For details of how to use the SWS moni-
tor, refer to "How to use SWS monitor
."
.
TECHNICAL DESCRIPTION (COMMENT)
The RV meter or its power supply circuit or communi-
cation circuit may be defective.
.
TROUBLESHOOTING HINTS
• The RV meter may be defective
• The wiring harness or connectors may have
loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector
RV Meter and SWS Communication Circuit
AC204170
CONNECTORS : D-02, D-08
BG
D-08(B)
D-02
AC204172
CONNECTOR : D-203
AG
SYMPTOM PROCEDURES
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SWS SYMPTOM PROCEDURES
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DIAGNOSIS
Required Special Tools:
• MB991223: Harness Set
• MB991502: Scan Tool (MUT-II)
• MB991862: SWS monitor kit
STEP 1. Use scan tool MB991502 to select "ECU COMM
CHK" on the SWS monitor display.
Check the column-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" menu for the "COLUMN ECU" menu.
Q: Is "OK" displayed on the "COLUMN ECU" menu?
YES : Go to Step 2.
NO : Refer to Inspection Procedure A-2 "Communication
with column switch (column-ECU) is impossible
STEP 2. Check the RV meter.
Q: Does the RV meter work normally?
YES : Go to Step 3.
NO : Carry out troubleshooting for the RV meter first. Refer
to GROUP 54A, RV meter
.
AC204222AB
16-pin
13-pin
MB991502
MB991862
SYMPTOM PROCEDURES
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SWS SYMPTOM PROCEDURES
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STEP 3. Check RV meter connector D-08 and column
switch connector D-203 for loose, corroded or damaged
terminals, or terminals pushed back in the connector.
Q: Are RV meter connector D-08 and column switch
connector D-203 in good condition?
YES : Go to Step 4.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
. The system should communicate with the
RV meter normally.
AC204170
CONNECTOR : D-08
AE
D-08(B)
HARNESS
SIDE
D-08(B)
1
3
4
2
12
1413
11
6
7
8
10 9
18
19
20
16
17
5
15
AC204172
CONNECTOR : D-203
AC
HARNESS SIDE
1
2
3
7
8
6
5
10
4
9
D-203
SYMPTOM PROCEDURES
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SWS SYMPTOM PROCEDURES
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STEP 4. Check the wiring harness between RV meter
connector D-08 (terminal 6) and column switch connector
D-203 (terminal 3).
NOTE: Also check joint connector D-02 for loose, corroded, or
damaged terminals, or terminals pushed back in the connector.
If joint connector D-02 is damaged, repair or replace the dam-
aged component(s) as described in GROUP 00E, Harness
Connector Inspection
.
Q: Is the wiring harness between RV meter connector D-08
(terminal 6) and column switch connector D-203
(terminal 3) in good condition?
YES : Replace the RV meter. The system should
communicate with the RV meter normally.
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 system
should communicate with the RV meter normally.
TONE ALARM
GENERAL DESCRIPTION CONCERNING TONE ALARM
M1549021000081
The ECU related to the alarm function types and var-
ious control functions are as follows.
AC204188
CONNECTORS : D-02, D-08
D-08(B)
D-02
AC
D-02
D-08(B)
HARNESS SIDE
9 10
8
6 7
31 32
30
29
18 19 20 21
5
4
2
1
3
27
26
24
23
25
12 13 14 15 16 17
28
11
22
33
1
3
4
2
12
1413
11
6
7
8
10 9
18
19
20
16
17
5
15
AC204172
CONNECTOR : D-203
AC
HARNESS SIDE
1
2
3
7
8
6
5
10
4
9
D-203
FUNCTION
CONTROL ECU
Ignition key reminder tone alarm function
ETACS-ECU
Light reminder tone alarm function
ETACS-ECU, column switch
Seat belt tone alarm function
ETACS-ECU
RV meter operating sound function
ETACS-ECU, RV meter
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