Mitsubishi Grandis. Manual — part 151
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-66
Step 3. Check the wiring harness between C-219
ETACS-ECU connector terminal No.20 and
fusible link (26).
NOTE:
Prior to the wiring harness inspection, check joint
AC310626
Connector: C-219
Junction block (Rear view)
<LHD>
AB
Junction block side
AC310620
Connector: C-219
Junction block
(Rear view)
<RHD>
AB
Junction block side
AC310631AL
Connector: C-31 <RHD>
AC310613
AD
Connector: C-125 <LHD>
AC310628AB
Connector: C-125 <RHD>
AC310623
Connectors: C-203 <LHD>
AL
Harness side
10
1
6
14
5
12
13
4
11
7
2
3
8
9
Junction block (Front view)
AC310618
Connectors: C-203 <RHD>
AK
Harness side
10
1
6
14
5
12
13
4
11
7
2
3
8
9
Junction block (Front view)
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-67
connector C-31 <RH drive vehicles>, intermediate
connector C-125 and junction block connector
C-203, and repair if necessary.
• Check the power supply line 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.
Step 4. Resistance measurement at the C-219
ETACS-ECU connector.
(1) Remove the ETACS-ECU, and measure at the
junction block side.
(2) Resistance between C-219 ETACS-ECU
connector terminal No.3 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.3 and body
earth.
NOTE:
Prior to the wiring harness inspection, check junction
block connector C-205, and repair if necessary.
• Check the earth wires for open circuit.
Q: Is the check result normal?
AC310626
Connector: C-219
Junction block (Rear view)
<LHD>
AB
Junction block side
AC310620
Connector: C-219
Junction block
(Rear view)
<RHD>
AB
Junction block side
AC310506BE
Connector C-219
(Junction block side)
2019
7
13
17
18
1615 14
10
11
12
9 8
2
6 5
3
4
1
AC310626
Connector: C-219
Junction block (Rear view)
<LHD>
AB
Junction block side
AC310620
Connector: C-219
Junction block
(Rear view)
<RHD>
AB
Junction block side
AC310623
Connector: C-205 <LHD>
AM
Harness side
Junction block (Front view)
AC310618
Connectors: C-205 <RHD>
AL
Harness side
Junction block (Front view)
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-68
YES :
The trouble can be an intermittent
malfunction (Refer to GROUP 00
− How to
Cope with Intermittent Malfunction
NO :
Repair the wiring harness.
Step 6. Connector check: C-221 ETACS-ECU
connector and C-301 column switch connector
Q: Is the check result normal?
YES :
Go to Step 7.
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)
AC310153AB
Connector: C-301 <LHD>
Harness side
AC310183
AB
Connector: C-301 <RHD>
Harness side
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-69
Step 7. 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.
• Check the communication lines for open circuit.
NOTE:
Prior to the wiring harness inspection, check joint
connector C-01, and repair if necessary.
Q: Is the check result normal?
YES :
Go to Step 8.
NO :
Repair the wiring harness.
Step 8. ECU check by using the SWS monitor
• Ignition switch: OFF
ECUS TO BE CHECKED
• ETACS ECU
OK: "OK" is displayed on the "ETACS ECU"
menu.
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.
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>
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