Mitsubishi Colt Ralliart. Manual — part 382
![](/vehicles/winoney/ama/flend/horr.png)
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-36
Step 6. Connector check: B-32 diagnosis
connector, B-133 ETACS-ECU connector
Q: Is the check result normal?
YES :
Go to Step 7.
NO :
Repair the defective connector.
Step 7. Check the wiring harness from B-133
ETACS-ECU connector terminal Nos. 52 and 69 to
B-32 diagnosis connector terminal Nos. 9 and 1.
Q: Is the check result normal?
YES :
Go to Step 8.
NO :
Repair the wiring harness.
Step 8. Retest the system.
Check that the ETACS-ECU communicates with the
SWS monitor.
Q: Is the check result normal?
YES :
The trouble can be an intermittent
malfunction (Refer to GROUP 00
− How to
use Troubleshooting/inspection Service
Points
− How to Cope with Intermittent
).
NO :
Replace the ETACS-ECU.
AC401055
AF
Connector: B-32
B-32 (B)
Harness side
AC313826AC
B-133 (GR)
Connector: B-133
Harness side
Junction block (Rear view)
AC401055
AF
Connector: B-32
B-32 (B)
Harness side
AC313826AC
B-133 (GR)
Connector: B-133
Harness side
Junction block (Rear view)
Main
Index
Group
TOC
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SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-37
INSPECTION PROCEDURE A-2: Communication with the column switch (column-ECU) is not
possible.
CAUTION
Whenever the ECU is replaced, ensure that the
input and output signal circuits are normal.
FUSIBLE
LINK
1
IGNITION
SWITCH (IG1)
COLUMN
SWITCH
COLUMN-ECU
ETACS-ECU
DIAGNOSIS
CONNECTOR
FRONT SIDE
Column Switch Power Supply and SWS Communication Circuit
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Grey R : Red P : Pink V : Violet PU : Purple
Main
Index
Group
TOC
![](/vehicles/winoney/ama/flend/ytolem.png)
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-38
COMMENTS ON TROUBLE SYMPTOM
The power supply circuit to the column switch (col-
umn-ECU) may be defective. If the wiring harness of
the battery power supply circuit for the ECU (column
switch terminal No.1) is defective, also check the
power supply circuit to the ignition switch (IG1) (col-
umn switch terminal No.9) and repair if necessary.
TROUBLESHOOTING HINTS
• Malfunction of the ETACS-ECU
• Malfunction of the column switch
• Damaged harness wires and connectors
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
ECU 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: B-135 column switch
connector
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Repair the defective connector.
Step 3. Voltage measurement at the B-135
column switch connector.
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Voltage between B-135 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.
AC401044AC
Connector: B-135
Harness side
AC401044AC
Connector: B-135
Harness side
AC310507FB
Connector B-135
(Harness side)
Main
Index
Group
TOC
![](/vehicles/winoney/ama/flend/mpyonal.png)
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-39
Step 4. Check the wiring harness between B-135
column switch connector terminal No.1 to fusible
link (1).
NOTE:
Prior to the wiring harness inspection, check junction
block connectors B-108, B-131 and joint connector
B-22, 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
use Troubleshooting/inspection Service
Points
− How to Cope with Intermittent
).
NO :
Repair the wiring harness.
Step 5. Resistance measurement at the B-135
column switch connector.
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Continuity between B-135 column switch
connector No.4 and body earth
OK: Continuity exists (2
Ω or less)
Q: Is the check result normal?
YES :
Go to Step 7.
NO :
Go to Step 6.
AC401044AC
Connector: B-135
Harness side
AC401055
Connector: B-22
AD
AC313870
Connector: B-108
BD
Junction block (Front view)
B-108(B)
Harness side
AC313872
Connector: B-131
BD
Harness side
AC401044AC
Connector: B-135
Harness side
AC310506 DX
Connector B-135
(Harness side)
10
5
6
7
9 8
3
4
2 1
Main
Index
Group
TOC
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