Mitsubishi Grandis. Manual — part 10
DIAGNOSTIC TROUBLE CODE PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-37
Step 8. Connector check: C-221 ETACS-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 9.
NO :
Repair the defective connector.
AC310626
Connector: C-221
Junction block (Rear view)
<LHD>
AC
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
Harness side
C-221(GR)
AC310620
Connector: C-221
Junction block
(Rear view)
<RHD>
AC
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
Harness side
C-221(GR)
DIAGNOSTIC TROUBLE CODE PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-38
Step 9. Check the wiring harness from C-221
ETACS-ECU connector terminal Nos.59 and 68 to
C-301 column switch connector terminal Nos.3
and 2.
NOTE:
Prior to the wiring harness inspection, check joint
connector C-01, and repair if necessary.
• Check the communication lines for open circuit.
Q: Is the check result normal?
YES :
Go to Step 10.
NO :
Repair the wiring harness.
Step 10. Check whether the diagnosis code is
reset.
Replace the column switch, and then check that the
diagnosis code is not reset.
(1) Replace the column switch.
(2) Ignition switch: ON
(3) On completion, check that diagnosis code No.02
is not reset.
Q: Is diagnosis code No.02 set?
YES :
Replace the ETACS-ECU.
NO :
The procedure is complete.
AC310626
Connector: C-221
Junction block (Rear view)
<LHD>
AC
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
Harness side
C-221(GR)
AC310620
Connector: C-221
Junction block
(Rear view)
<RHD>
AC
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
Harness side
C-221(GR)
AC310153AB
Connector: C-301 <LHD>
Harness side
AC310183
AB
Connector: C-301 <RHD>
Harness side
AC310613
AE
Connector: C-01 <LHD>
AC310631AE
Connector: C-01 <RHD>
DIAGNOSTIC TROUBLE CODE PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-39
Diagnosis code No.03 Communication error with front-ECU
CAUTION
If diagnosis code No.03 is set in the ETACS-ECU,
diagnose the CAN bus lines.
DIAGNOSTIC TROUBLE CODE PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-40
TROUBLE JUDGMENT
The ETACS-ECU communicates with the front-ECU
through the SWS communication line. If there is any
trouble in that communication, diagnosis code No.03
will be set.
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
IGNITION
SWITCH (IG2)
DIAGNOSIS
CONNECTOR
ETACS-ECU
POWER
SOURCE
FRONT-ECU
26
FUSIBLE
LINK
RELAY
BOX
FRONT SIDE
Front-ECU Power Supply and SWS Communication Circuit
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