Mitsubishi Montero (2002-2004). Manual — part 337
SYMPTOM PROCEDURES
TSB Revision
SWS SYMPTOM PROCEDURES
54Bb-395
STEP 4. Check the battery power supply circuit to the
ETACS-ECU. Test at ETACS-ECU connector D-222.
(1) Disconnect ETACS-ECU connector D-222 and measure the
voltage available at the junction block side of the connector.
(2) Measure the voltage between terminal 11 and ground.
• The voltage should be approximately 12 volts (battery
positive voltage).
Q: Is the measured voltage approximately 12 volts (battery
positive voltage)?
YES : Replace the ETACS-ECU. Verify that the turn-signal
lights illuminate normally.
NO : Go to Step 5.
STEP 5. Check ETACS-ECU connector D-222 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q: Is ETACS-ECU connector D-222 in good condition?
YES : Go to Step 6.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
. Verify that the turn-signal lights illuminate
normally.
AC204174
CONNECTOR : D-222
AB
1
2
3
5
6
4
9 8
121110
13
15 14
16
17
7
19
20
18
JUNCTION BLOCK SIDE
D-222
ACX01589
19
20
1817 1615 141312 1110 9 8 7
6 5 4 3 2 1
AB
CONNECTOR D-222
(JUNCTION BLOCK SIDE)
AC204174
CONNECTOR : D-222
AB
1
2
3
5
6
4
9 8
121110
13
15 14
16
17
7
19
20
18
JUNCTION BLOCK SIDE
D-222
SYMPTOM PROCEDURES
TSB Revision
SWS SYMPTOM PROCEDURES
54Bb-396
STEP 6. Check the wiring harness between ETACS-ECU
connector D-222 (terminal 11) and the battery.
NOTE: Also check intermediate connector D-28 and junction
block connector D-221 for loose, corroded, or damaged termi-
nals, or terminals pushed back in the connector. If intermediate
connector D-28 or junction block connector D-221 is damaged,
repair or replace the damaged component(s) as described in
GROUP 00E, Harness Connector Inspection
Q: Is the wiring harness between ETACS-ECU connector D-
222 (terminal 11) and the battery in good condition?
YES : No action is necessary and testing is complete.
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. Verify that
the turn-signal lights illuminate normally.
AC204174
CONNECTOR : D-222
AB
1
2
3
5
6
4
9 8
121110
13
15 14
16
17
7
19
20
18
JUNCTION BLOCK SIDE
D-222
AC204170
CONNECTOR : D-28
AI
2 3
27
32
28
33
16
15
4 5
19
18
29
17
34
7 8
35
22
21
9 10
30
36
31
37
25
24
23
6
20
1
14
26
11
13
12
38
AC204173
CONNECTOR : D-221
AJ
HARNESS SIDE
3
1
4
6 5
7
8
2
SYMPTOM PROCEDURES
TSB Revision
SWS SYMPTOM PROCEDURES
54Bb-397
STEP 7. Check the input signal by using "FUNCTION
DIAG." menu of the SWS monitor.
Check the input signals from the following switches:
• Ignition switch: ON
• Turn-signal light switch: RH
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) Operate scan tool MB991502 according to the procedure
below to display "TURN SIG.RH."
1. Select "SYSTEM SELECT."
2. Select "SWS."
3. Select "SWS MONITOR."
4. Select "FUNCTION DIAG."
5. Select "TURN SIGNAL."
6. Select "TURN SIG.RH."
(4) Check that normal conditions are displayed on the items
described in the table below.
Q: Are normal conditions displayed on the "T/S RH SW"
and "IG SW (IG1)"?
YES : Go to Step 8.
NO :
• Normal condition is not displayed on the "T/S RH
SW": Refer to Inspection Procedure O-6 "ETACS-
ECU does not receive any signal from the turn-
signal RH switch
• Normal condition is not displayed on the "IG SW
(IG1)": Refer to Inspection Procedure O-2
"ETACS-ECU does not receive any signal from
the ignition switch (IG1)
ITEM NO.
ITEM NAME
NORMAL CONDITION
ITEM 10
T/S RH SW
ON
ITEM 30
IG SW (IG1)
ON
AC204222AB
16-pin
13-pin
MB991502
MB991862
SYMPTOM PROCEDURES
TSB Revision
SWS SYMPTOM PROCEDURES
54Bb-398
STEP 8. Check the input signal by using "FUNCTION
DIAG." menu of the SWS monitor.
If the Ignition switch is turned to the "ON" position and the turn-
signal light switch (LH) is turned on, normal conditions should
be displayed on the items described in the table below.
Operate scan tool MB991502 according to the procedure below
to display "TURN SIG.LH."
1. Select "SYSTEM SELECT."
2. Select "SWS."
3. Select "SWS MONITOR."
4. Select "FUNCTION DIAG."
5. Select "TURN SIGNAL."
6. Select "TURN SIG.LH."
Q: Do the scan tool display the items "T/S LH SW" is
normal condition?
YES : Replace the ETACS-ECU. Verify that the turn-signal
lights illuminate normally.
NO : Refer to Inspection Procedure O-6 "ETACS-ECU
does not receive any signal from the taillight switch,
the headlight switch, the passing light switch, the
dimmer switch, the turn-signal light switch or switch
."
ITEM NO.
ITEM NAME
NORMAL
CONDITION
ITEM 11
T/S LH SW
ON
AC204222AB
16-pin
13-pin
MB991502
MB991862
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