Mitsubishi Lancer Evolution IX. Manual - part 119
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-39
POSSIBLE CAUSES
• Malfunction of the ETACS-ECU
• Damaged harness wires and connectors
DIAGNOSTIC PROCEDURE
Step 1. Check that the M.U.T.-II/III communicates
with the other systems.
Use the M.U.T.-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
Step 2. Check that the M.U.T.-II/III can
communicate with the system.
When the ignition switch is turned ON, check if the
M.U.T.-II/III can communicate with the system.
Q: Is the check result normal?
YES :
Refer to inspection procedure A-2 "Check
the battery power supply circuit to the
ETACS-ECU
NO :
Go to Step 3.
Step 3. Connector check: C-228 ETACS-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Repair the defective connector.
Step 4. Resistance measurement at the C-228
ETACS-ECU connector
(1) Disconnect the connector, and measure at the
junction block side.
(2) Resistance between C-228 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.
AC310450
Connector: C-228 <LHD>
AC
Junction block (rear view)
C-228 (GR)
Harness side
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
AC310461
Junction block (rear view)
Connector: C-228 <RHD>
AC
Harness side
C-228 (GR)
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
AC310450
Connector: C-228 <LHD>
AC
Junction block (rear view)
C-228 (GR)
Harness side
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
AC310461
Junction block (rear view)
Connector: C-228 <RHD>
AC
Harness side
C-228 (GR)
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
AC310506AB
Connector C-228
(Harness side)
68
74
63
66
72
73
67
6564
61
70
71
62
69
60
57
58
59
5655
52
54 53
51