Mitsubishi L200. Manual — part 558
WINDSHIELD WIPER AND WASHER
EXTERIOR
51-48
Inspection Procedure 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.
AC903745
J/B SIDE
Windshield Wiper Automatic Stop Relay Circuit
IGNITION
SWITCH (ACC)
ETACS-ECU
WINDSHIELD
WIPER MOTOR
WIPER
AUTOMATIC
STOP RELAY
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 SI : Silver
AB
COMMENTS ON TROUBLE SYMPTOM
The windshield wiper motor or the ETACS-ECU may
be defective.
PROBABLE CAUSES
• Malfunction of the windshield wiper motor
• Malfunction of the ETACS-ECU
• Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III data list
Check if the ETACS-ECU receives the windshield
wiper auto-stop signal.
•
Item
No.
Item name
Normal condition
25
Front wiper auto stop
switch
Turns ON when the
wipers are activated
from the stopped
state.
Activate the windshield wipers.
OK: Normal condition is displayed.
Q: Is the check result normal?
YES :
Go to Step 12.
NO :
Go to Step 2.
WINDSHIELD WIPER AND WASHER
EXTERIOR
51-49
STEP 2. Connector check: A-05 windshield wiper
motor connector
AC903897
AJ
Connector: A-05 <LHD>
Harness side
A-05 (GR)
AC903889
AC
Connector: A-05 <RHD>
Harness side
A-05 (GR)
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Repair the connector.
STEP 3. Check the windshield wiper motor
assembly.
Refer to
Q: Is the check result normal?
YES <LH drive vehicles> :
Go to Step 4.
YES <RH drive vehicles> :
Go to Step 8.
NO :
Replace the windshield wiper motor
assembly.
STEP 4. Voltage measurement at the A-05
windshield wiper motor connector.
AC903897
AJ
Connector: A-05 <LHD>
Harness side
A-05 (GR)
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Ignition switch: ACC
AC310507 IV
Connector A-05
(Harness side)
(3) Check the voltage between the A-05 windshield
wiper motor connector terminal No.1 and body
earth.
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 6.
NO :
Go to Step 5.
STEP 5. Check the wiring harness between A-05
windshield wiper motor connector terminal No.1
and ignition switch (ACC).
AC903897
AJ
Connector: A-05 <LHD>
Harness side
A-05 (GR)
NOTE:
AC509934
Connectors: C-207, C-210 <LHD>
Junction block (Front view)
C-207
C-210
C-207
AO
Harness side
Harness side
C-210
Prior to the wiring harness inspection, check the
junction block connectors C-207, C-210, and repair if
necessary.
• Check the power supply line to ignition switch
(ACC) for open circuit.
Q: Is the check result normal?
WINDSHIELD WIPER AND WASHER
EXTERIOR
51-50
YES :
The trouble can be an intermittent
malfunction (Refer to GROUP 00, How to
use Troubleshooting/inspection Service
Points
− How to Cope with Intermittent
Malfunction ).
NO :
Repair the wiring harness.
STEP 6. Connector check: C-218 ETACS-ECU
connector
AC509934
Connector: C-218 <LHD>
AJ
Junction
block
Junction block side
Q: Is the check result normal?
YES :
Go to Step 7.
NO :
Repair the connector.
STEP 7. Check the wiring harness between A-05
windshield wiper motor connector terminal No.4
and C-218 ETACS-ECU connector terminal No.6.
AC903897
AJ
Connector: A-05 <LHD>
Harness side
A-05 (GR)
AC509934
Connector: C-218 <LHD>
AJ
Junction
block
Junction block side
NOTE:
AC509934
Connector: C-210 <LHD>
Junction block
AN
Harness side
Prior to the wiring harness inspection, check the
junction block connector C-210, and repair if neces-
sary.
• Check the input signal lines.
Q: Is the check result normal?
YES :
Go to Step 12.
NO :
Repair the wiring harness.
WINDSHIELD WIPER AND WASHER
EXTERIOR
51-51
STEP 8. Voltage measurement at the A-05
windshield wiper motor connector.
AC510126
Connector: A-05 <RHD>
Harness side
AB
A-05(GR)
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Ignition switch: ACC
AC310507 FX
Connector A-05
(Harness side)
(3) Check the voltage between the A-05 windshield
wiper motor connector terminal No.3 and body
earth.
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 10.
NO :
Go to Step 9.
STEP 9. Check the wiring harness between A-05
windshield wiper motor connector terminal No.3
and ignition switch (ACC).
AC903889
AC
Connector: A-05 <RHD>
Harness side
A-05 (GR)
NOTE:
AC509936
Connectors: C-207, C-210 <RHD>
C-207
C-210
C-207
Harness side
Harness side
C-210
AK
Junction block
(Front view)
Prior to the wiring harness inspection, check the
junction block connectors C-207, C-210, 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
use Troubleshooting/inspection Service
Points
− How to Cope with Intermittent
Malfunction ).
NO :
Repair the wiring harness.
STEP 10. Connector check: C-218 ETACS-ECU
connector
AC509943
Connector: C-218 <RHD>
AC
Junction block
(Rear view)
Junction block side
Q: Is the check result normal?
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