Mitsubishi Grandis. Manual — part 188
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-214
Prior to the wiring harness inspection, check the
junction connectors C-202, C-203, the intermediate
connectors C-125, and repair if necessary.
• 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
Cope with Intermittent Malfunction
NO :
Repair the wiring harness.
Step 5. Connector check: A-15X front-ECU
connector.
Q: Is the check result normal?
YES :
Go to Step 6.
NO :
Repair the connector.
AC310613
AD
Connector: C-125 <LHD>
AC310628AB
Connector: C-125 <RHD>
AC310624
Connectors: C-202, C-203
AS
Junction block (Front view)
C-202
Harness side
C-202
C-203
Harness side
C-203
10
1
6
14
5
12
13
4
11
7
2
3
8
9
<LHD>
AC310619
Connectors: C-202, C-203
AS
Junction block (Front view)
C-203
C-202
Harness side
C-202
Harness side
C-203
10
1
6
14
5
12
13
4
11
7
2
3
8
9
<RHD>
AC311521AC
Connector: A-15X
Relay box side
21
22
23
24
25
26
27
28
29
30
31
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-215
Step 6. Check the wiring harness between A-01
windshield wiper motor connector terminal No.5
and A-15X front-ECU connector terminal No.23.
• Check the input signal lines.
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 wipers stop at the
specified park position.
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 front-ECU.
AC311521AC
Connector: A-15X
Relay box side
21
22
23
24
25
26
27
28
29
30
31
AC310401
Connector: A-01 <LHD>
Harness side
AD
A-01 (GR)
AC310396
Connector: A-01 <RHD>
Harness side
AD
A-01 (GR)
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-216
Inspection Procedure G-4: The windshield wipers does not work normally.
CAUTION
Whenever the ECU is replaced, ensure that the
input and output signal circuits are normal.
COMMENTS ON TROUBLE SYMPTOM
The windshield wiper motor, the column switch or the
front-ECU may be defective.
POSSIBLE CAUSES
• Malfunction of the windshield wiper motor
• Malfunction of the column switch
• Malfunction of the front-ECU
• Damaged harness wires and connectors
Windshield Washer Motor Circuit
FRONT-ECU
WINDSHIELD
WASHER MOTOR
WINDSHIELD
WASHER
RELAY
INPUT SIGNAL
WINDSHIELD WASHER
IGNITION
SWITCH (ACC)
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
WASHER
RELAY
ETACS-ECU
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-217
Step 1. SWS monitor data list
Check the SWS communication signal, which are
related to the windshield wipers.
<Selected item> Column switch (column-ECU)
• Ignition switch: ON
• Move the windshield wiper switch to each
position.
OK: Normal conditions are displayed for all
the functions of the switch.
Q: Are the check result normal?
YES :
Go to Step 2.
NO :
Refer to Inspection Procedure Q-7 "The
column switch (wind shield wiper/washer
and rear wiper washer switch) signal is not
received
."
Step 2. Connector check: A-01 windshield wiper
motor connector.
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Repair the defective connector.
Step 3. Check the windshield wiper motor
assembly.
Refer to GROUP 51
− Windshield wiper
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Replace the windshield wiper motor
assembly.
Step 4. Retest the system.
Check that the windshield wipers work normally by
moving the switch to HI or MIST position.
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Go to Step 8.
Step 5. Connector check: A-15X front-ECU
connector.
Q: Is the check result normal?
YES :
Go to Step 6.
NO :
Repair the defective connector.
Item No.
Item name
Normal
condition
Item 31
IG SW(ACC)
ON
Item 05
INT WIPER SW
ON
Item 06
LO WIPER SW
ON
Item 07
HI WIPER SW
ON
Item 08
MIST WIPER SW
ON
AC310401
Connector: A-01 <LHD>
Harness side
AD
A-01 (GR)
AC310396
Connector: A-01 <RHD>
Harness side
AD
A-01 (GR)
AC311521AC
Connector: A-15X
Relay box side
21
22
23
24
25
26
27
28
29
30
31
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