Mitsubishi Colt Ralliart. Manual — part 400
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-108
Step 2. ECU check by using the SWS monitor.
Check that the power supply and earth lines to the
column switch (column-ECU), the ETACS-ECU and
the SWS communication lines are normal.
• Turn the ignition switch to the ACC position.
ECU TO BE CHECKED
• COLUMN ECU
• ETACS ECU
OK: "OK" are displayed for all the items
Q: Are the check results normal?
"OK" are displayed for all the items :
Go to Step 3.
"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 3. Function diagnosis by using the SWS
monitor.
Check the SWS communication signal, which are
related to the windshield washer function.
<Selected item> F.WIPER WASH
• Turn the ignition switch to the ACC position.
• Windshield washer switch: ON
OK: Normal condition is displayed.
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Refer to Inspection Procedure N-5 "The
column switch (windshield wiper washer
and rear wiper washer switch) signal is not
received
."
Step 4. Connector check: A-35 motor connector
and B-134 ETACS-ECU connector.
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Repair the connector.
Step 5. Check the windshield washer motor
assembly.
Refer to GROUP 51
− Windshield wiper and washer
Q: Is the check result normal?
YES :
Go to Step 6.
NO :
Replace the windshield washer motor.
Item No.
Item name
Normal
condition
Item 09
FRONT WASH.
SW
ON
AC509176
Connector: A-35
Harness side
AB
AC313872 AH
Connector: B-134
Harness side
Junction block (Rear view)
Main
Index
Group
TOC
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-109
Step 6. Check the wiring harness between A-35
washer motor connector terminal Nos.1, 2 to
B-134 ETACS-ECU connector terminal Nos.12, 9.
NOTE:
Prior to the wiring harness inspection, check the
junction block connector B-112 and repair if neces-
sary.
• Check the power supply line for open circuit.
Q: Is the check result normal?
YES :
Go to Step 7.
NO :
Repair the wiring harness.
Step 7. Retest the system.
Check that the windshield washer works normally.
Q: Is the check result satisfactory?
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.
AC509176
Connector: A-35
Harness side
AB
AC313872 AH
Connector: B-134
Harness side
Junction block (Rear view)
AC313870
Connector: B-112
BE
Junction block (Front view)
Harness side
Main
Index
Group
TOC
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-110
REAR WIPER AND WASHER
INSPECTION PROCEDURE G-1: The rear wiper does not work at all.
CAUTION
Whenever the ECU is replaced, ensure that the
input and output signal circuits are normal.
COMMENTS ON TROUBLE SYMPTOM
If the rear wiper does not work normally, the input
signal circuits to the components below, the rear
wiper motor or the ETACS-ECU may be defective.
• Ignition switch (ACC)
• Rear wiper switch
POSSIBLE CAUSES
• Malfunction of the rear wiper motor
• Malfunction of the column switch
• 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
Rear Wiper Drive Circuit
IGNITION
SWITCH (ACC)
REAR
WIPER RELAY
REAR
WIPER MOTOR
ETACS-ECU
J/B SIDE
REAR WIPER SWITCH
INPUT SIGNAL
Main
Index
Group
TOC
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-111
DIAGNOSIS PROCEDURE
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.
• Ignition switch: ACC
ECU TO BE CHECKED
• COLUMN ECU
• ETACS ECU
OK: "OK" are displayed for all the items
Q: Are the check results normal?
"OK" are 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. Function diagnosis by using the SWS
monitor
Check the SWS communication signal, which are
related to the rear wiper function.
<Selected item> REAR WIPER
• Ignition switch: ACC
• Rear wiper switch: ON
OK: Normal conditions are displayed for all
the items.
Q: Are the check results normal?
Normal conditions are displayed for all the items :
Go to Step 3.
Normal condition is not displayed for item No.13 :
Replace the column switch.
Normal condition is not displayed for item No.31 :
Refer to inspection procedure N-1 "The
ignition switch (ACC) signal is not received
."
Step 3. Connector check: E-04 rear wiper motor
connector.
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Repair the connector.
Step 4. Check the rear wiper motor.
Refer to GROUP 51
− Rear wiper and washer
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Replace the rear wiper motor.
Item No.
Item name
Normal
condition
Item 13
REAR WIPER SW
ON
Item 31
IG SW (ACC)
ON
AC401046
Connector: E-04
AC
Harness side
Main
Index
Group
TOC
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