Mitsubishi Montero (2002-2004). Manual — part 240
SYMPTOM PROCEDURES
TSB Revision
SWS SYMPTOM PROCEDURES
54Bb-7
SYMPTOM PROCEDURES
INSPECTION PROCEDURE A-1: Communication with the SWS monitor kit is not possible.
.
Scan Tool Communication and ETACS-ECU Ground Circuit
AC204170
CONNECTORS : D-02, D-117, D-118
BH
D-118(B)
D-02
D-117
AC204173
CONNECTORS : D-209, D-220
D-208
D-220
AT
AC204174
CONNECTORS : D-222, D-224
D-224(B)
AH
D-222
SYMPTOM PROCEDURES
TSB Revision
SWS SYMPTOM PROCEDURES
54Bb-8
TECHNICAL DESCRIPTION (COMMENT)
The SWS monitor kit may be connected improperly.
.
TROUBLESHOOTING HINTS
• The SWS monitor body (I/F cartridge) may be
defective
• The SWS monitor harness may be defective
• The ETACS-ECU 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
• MB991502: Scan Tool (MUT-II)
STEP 1. Verify SWS monitor kit MB991862 for proper
connection.
Q: Is SWS monitor kit MB991862 connected with the
column switch properly?
YES : Go to Step 2.
NO : Connect SWS monitor kit MB991862 to the column
switch securely.
STEP 2. Verify the power supply circuit to the ETACS-ECU.
Q: Does the system communicate with scan tool
MB991502 when the ignition switch is turned to the
"ON" position?
YES : Go to Step 3.
NO : Refer to Inspection Procedure A-3 "Communication
with the ETACS-ECU is not possible
."
SYMPTOM PROCEDURES
TSB Revision
SWS SYMPTOM PROCEDURES
54Bb-9
STEP 3. Check the ground circuit to the ETACS-ECU. Test
at ETACS-ECU connector D-222 and D-224.
(1) Disconnect ETACS-ECU connector D-222 and D-224, and
measure the resistance available at the junction block side
of the connector.
(2) Measure the resistance value between ETACS-ECU
connector D-222 terminal 20 and ground, and also between
ETACS-ECU connector D-224 terminal 23 and ground.
• The resistance should equal 2 ohms or less.
Q: Is the measured resistance 2 ohms or less?
YES : Go to Step 6.
NO : Go to Step 4.
AC204192
CONNECTORS : D-222, D-224
D-222
AC
HARNESS SIDE
D-224(B)
D-222
D-224(B)
1
2
3
5
6
4
9 8
121110
13
15 14
16
17
7
19
20
18
JUNCTION BLOCK SIDE
21
23
24
22
32
3433
31
26
27
28
3029
38
39
40
36
37
25
35
ACX01569
19
20
1817 1615 141312 1110 9 8 7
6 5 4 3 2 1
AB
CONNECTOR D-222
(JUNCTION BLOCK SIDE)
AC204759
21
23
24
22
32
3433
31
26
27
28
3029
38
39
40
36
37
25
35
AB
CONNECTOR D-224
(HARNESS SIDE)
SYMPTOM PROCEDURES
TSB Revision
SWS SYMPTOM PROCEDURES
54Bb-10
STEP 4. Check ETACS-ECU connector D-222 and D-224 for
loose, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Are ETACS-ECU connector D-222 and D-224 in good
condition?
YES : Go to Step 5.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
. The system should communicate with the
SWS monitor normally.
AC204192
CONNECTORS : D-222, D-224
D-222
AC
HARNESS SIDE
D-224(B)
D-222
D-224(B)
1
2
3
5
6
4
9 8
121110
13
15 14
16
17
7
19
20
18
JUNCTION BLOCK SIDE
21
23
24
22
32
3433
31
26
27
28
3029
38
39
40
36
37
25
35
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