Mitsubishi Grandis. Manual — part 149
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-58
DIAGNOSIS PROCEDURE
Step 1. ECU check by using the SWS monitor
Check that the power supply and earth lines to the
ETACS-ECU and the SWS communication lines are
normal.
• 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 :
Go to Step 2.
NO :
Refer to Inspection Procedure A-3
"Communication with the ETACS-ECU is
not possible
Step 2. Connector check: C-301 column switch
connector
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Repair the defective connector.
Step 3. Voltage measurement at C-301 column
switch connector.
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Voltage between C-301 column switch connector
No.1 and body earth
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Go to Step 4.
AC310153AB
Connector: C-301 <LHD>
Harness side
AC310183
AB
Connector: C-301 <RHD>
Harness side
AC310153AB
Connector: C-301 <LHD>
Harness side
AC310183
AB
Connector: C-301 <RHD>
Harness side
AC310507BO
Connector C-301
(Harness side)
10
5
6
7
9 8
3
4
2 1
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-59
Step 4. Check the wiring harness between C-301
column switch connector terminal No.1 and
fusible link (26).
NOTE:
Prior to the wiring harness inspection, check
intermediate connector C-125, joint connectors C-32
<LH drive vehicles> and C-31 <RH drive vehicles>,
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.
AC310153AB
Connector: C-301 <LHD>
Harness side
AC310183
AB
Connector: C-301 <RHD>
Harness side
AC310614
AS
Connectors: C-32, C-125 <LHD>
C-125
C-125
C-32
C-32
AC310631AL
Connector: C-31 <RHD>
AC310628AB
Connector: C-125 <RHD>
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-60
Step 5. Resistance measurement at C-301
column switch connector.
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Continuity between C-301 column switch
connector No.4 and body earth
OK: 2
Ω or less
Q: Is the check result normal?
YES :
Go to Step 7.
NO :
Go to Step 6.
Step 6. Check the wiring harness between C-301
column switch connector No.4 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.
AC310153AB
Connector: C-301 <LHD>
Harness side
AC310183
AB
Connector: C-301 <RHD>
Harness side
AC310506 BD
Connector C-301
(Harness side)
10
5
6
7
9 8
3
4
2 1
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-61
Step 7. Connector check: C-221 ETACS-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 8.
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)
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст