Mitsubishi Outlander (2003+). Manual — part 440
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-49
COMMENTS ON TROUBLE SYMPTOM
It is suspected that the power supply circuit to the
ETACS-ECU is defective, or the wiring harness
between the diagnosis connector and the
ETACS-ECU or their connector(s) is damaged.
NOTE: If the wiring harness between the
ETACS-ECU and body earth is defective, also check
C-217 ETACS-ECU connector terminal No.3, and
repair if necessary.
POSSIBLE CAUSES
•
Malfunction of the ETACS-ECU
•
Damaged harness wires and connectors
DIAGNOSTIC PROCEDURE
Step 1. Check that the MUT-II/III communicates
with the other systems.
Use the MUT-II/III to confirm that it communicates
with the engine-ECU.
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Diagnose the engine control system by
referring to
<4G63> or
<4G69>.
Step 2. Check that the MUT-II/III can
communicate with the system.
When the ignition switch is turned ON, check if the
MUT-II/III can communicate with the system.
Q: Is the check result normal?
YES :
Refer to inspection procedure A-2 "Check
the ETACS-ECU battery power supply
circuit"
NO :
Go to Step 3.
ETACS-
ECU
DIAGNOSIS
CONNECTOR
DIAGNOSIS
CONNECTOR
FRONT SIDE
FRONT SIDE
Wire colour code
B : Black LG : Light green G : Green L : Blue
W : White Y : Yellow SB : Sky blue BR : Brown
O : Orange GR : Gray R : Red P : Pink V : Violet
MUT-II Communication and ETACS-ECU Ground Circuit <RHD>
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-50
Step 3. Connector check: C-219 ETACS-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Repair the defective connector.
Step 4. Measure the resistance at the C-219
ETACS-ECU connector.
(1) Disconnect the connector, and measure at the
junction block side.
(2) Resistance between C-219 ETACS-ECU
connector terminal No.56 and body earth
OK: 2
Ω
or less
Q: Is the check result normal?
YES :
Go to Step 6.
NO :
Go to Step 5.
Step 5. Check the wiring harness between C-219
ETACS-ECU connector terminal No.56 and body
earth.
•
Check the earth wires for open circuit.
Q: Is the check result normal?
YES :
The trouble can be an intermittent
malfunction (Refer to GROUP 00
−
How to
Cope with Intermittent Malfunction
NO :
Repair the wiring harness.
AC308722
Connector: C-219
Junction block (Rear view)
Junction block side
AB
<LHD>
68
74
63
66
72
73
67
6564
61
70
71
62
69
60
57
58
59
5655
52
54 53
51
C-219 (GR)
AC308776
Connector: C-219
Junction block (Rear view)
Junction block side
AB
<RHD>
68
74
63
66
72
73
67
6564
61
70
71
62
69
60
57
58
59
5655
52
54 53
51
C-219 (GR)
AC308722
Connector: C-219
Junction block (Rear view)
Junction block side
AB
<LHD>
68
74
63
66
72
73
67
6564
61
70
71
62
69
60
57
58
59
5655
52
54 53
51
C-219 (GR)
AC308776
Connector: C-219
Junction block (Rear view)
Junction block side
AB
<RHD>
68
74
63
66
72
73
67
6564
61
70
71
62
69
60
57
58
59
5655
52
54 53
51
C-219 (GR)
AC301541AY
Connector C-219
(Harness side)
68
74
63
66
72
73
67
6564
61
70
71
62
69
60
57
58
59
5655
52
54 53
51
AC308722
Connector: C-219
Junction block (Rear view)
Junction block side
AB
<LHD>
68
74
63
66
72
73
67
6564
61
70
71
62
69
60
57
58
59
5655
52
54 53
51
C-219 (GR)
AC308776
Connector: C-219
Junction block (Rear view)
Junction block side
AB
<RHD>
68
74
63
66
72
73
67
6564
61
70
71
62
69
60
57
58
59
5655
52
54 53
51
C-219 (GR)
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-51
Step 6. Connector check: C-24 diagnosis
connector
Q: Is the check result normal?
YES :
Go to Step 7.
NO :
Repair the defective connector.
Step 7. Check the wiring harness from C-219
ETACS-ECU connector terminal Nos. 51 and 67 to
C-24 diagnosis connector terminal Nos. 9 and 1.
•
Check the communication lines for open circuit.
Q: Is the check result normal?
YES :
Go to Step 8.
NO :
Repair the wiring harness.
AC308716
AB
C-24(B)
1
9 10
2
4
12
11
3
13
5
7
15
14
6
16
8
Connector: C-24
Harness side
<LHD>
AC308769
AB
C-24(B)
1
9 10
2
4
12
11
3
13
5
7
15
14
6
16
8
Connector: C-24
Harness side
<RHD>
AC308716
AB
C-24(B)
1
9 10
2
4
12
11
3
13
5
7
15
14
6
16
8
Connector: C-24
Harness side
<LHD>
AC308769
AB
C-24(B)
1
9 10
2
4
12
11
3
13
5
7
15
14
6
16
8
Connector: C-24
Harness side
<RHD>
AC308722
Connector: C-219
Junction block (Rear view)
Junction block side
AB
<LHD>
68
74
63
66
72
73
67
6564
61
70
71
62
69
60
57
58
59
5655
52
54 53
51
C-219 (GR)
AC308776
Connector: C-219
Junction block (Rear view)
Junction block side
AB
<RHD>
68
74
63
66
72
73
67
6564
61
70
71
62
69
60
57
58
59
5655
52
54 53
51
C-219 (GR)
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-52
Step 8. Retest the system.
Check whether the communication with the MUT-II/III
is possible.
Q: Is the check result normal?
YES :
The trouble can be an intermittent
malfunction (Refer to GROUP 00
−
How to
Cope with Intermittent Malfunction
NO :
Replace the ETACS-ECU.
INSPECTION PROCEDURE A-2: When the ignition switch is at the LOCK (OFF) position, the functions
do not work normally. Check the battery power supply circuit to the ETACS-ECU.
CAUTION
Whenever the ECU is replaced, ensure that the
power supply circuit and the earthing circuit are
normal.
BATTERY
RELAY
BOX
ETACS-ECU
Wire colour code
B : Black LG : Light green
G : Green L : Blue
W : White Y : Yellow
SB : Sky blue BR : Brown
O : Orange GR : Gray
R : Red P : Pink V : Violet
ETACS-ECU Power Supply Circuit <LHD>
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