Mitsubishi Colt Ralliart. Manual — part 397
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-96
Step 1. ECU check by using the SWS monitor.
Check that the power supply and earth lines to the
column switch (column-ECU) and the ETACS-ECU
and the SWS communication lines are normal.
• Turn the ignition switch to the ON position.
ECU TO BE CHECKED
• COLUMN ECU
• ETACS-ECU
OK: "OK" are displayed for all the items
Q: Are the check results normal?
"OK" is displayed for all the items :
Go to Step 2.
"NG" is displayed on the "COLUMN ECU" menu. :
Refer to Inspection Procedure A-2
"Communication with the column switch
(column-ECU) is not possible
."
"NG" is displayed on the "ETACS ECU" menu. :
Refer to Inspection Procedure A-3
"Communication with the ETACS-ECU is
not possible
Step 2. Retest the system.
The windshield wiper should now work normally.
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.
Main
Index
Group
TOC
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-97
INSPECTION PROCEDURE F-3: The windshield wipers do not stop at the specified park position.
CAUTION
Whenever the ECU is replaced, ensure that the
input and output signal circuits are normal.
COMMENTS ON TROUBLE SYMPTOM
The windshield wiper motor or the ETACS-ECU may
be defective.
POSSIBLE CAUSES
• Malfunction of the windshield wiper motor
• Malfunction of the ETACS-ECU
• Damaged harness wires and connectors
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 (ACC)
ETACS-ECU
J/B SIDE
WINDSHIELD
WIPER MOTOR
WIPER
AUTOMATIC
STOP RELAY
Windshield Wiper Automatic Stop Relay Circuit
Main
Index
Group
TOC
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-98
DIAGNOSIS PROCEDURE
Step 1. Connector check: A-04 windshield wiper
motor connector.
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Repair the connector.
Step 2. Check the windshield wiper motor
assembly.
Refer to GROUP 51
− Windshield wiper
.
Q: Is the check result normal?
YES :
Go to Step 3
NO :
Replace the windshield wiper motor
assembly.
Step 3. Voltage measurement at the A-04
windshield wiper motor connector.
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Ignition switch: ACC
(3) Check the voltage between the A-04 windshield
wiper motor connector terminal No.2 and body
earth.
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Go to Step 4.
AC313860
Connector: A-04
Harness side
AB
A-04 (GR)
AC313860
Connector: A-04
Harness side
AB
A-04 (GR)
AC313972
Connector A-04
(Harness side)
AM
Main
Index
Group
TOC
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-99
Step 4. Check the wiring harness between A-04
windshield wiper motor connector terminal No.2
to ignition switch (ACC).
NOTE:
Prior to the wiring harness inspection, check the
junction connectors B-112, B-129, and repair if nec-
essary.
• Check the power supply line to ignition switch
(ACC) 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. Connector check: B-134 ETACS-ECU
connector.
Q: Is the check result normal?
YES :
Go to Step 6.
NO :
Repair the connector.
Step 6. Check the wiring harness between A-04
windshield wiper motor connector terminal No.3
to B-134 ETACS-ECU connector terminal No.6.
• Check the input signal lines.
Q: Is the check result normal?
YES :
Go to Step 7.
NO :
Repair the wiring harness.
AC313860
Connector: A-04
Harness side
AB
A-04 (GR)
AC313870
Connector: B-112
BE
Junction block (Front view)
Harness side
AC313872BC
Connector: B-129
Harness side
Junction block (Rear view)
AC313872 AH
Connector: B-134
Harness side
Junction block (Rear view)
AC313860
Connector: A-04
Harness side
AB
A-04 (GR)
AC313872 AH
Connector: B-134
Harness side
Junction block (Rear view)
Main
Index
Group
TOC
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