Mitsubishi L200. Manual — part 556
WINDSHIELD WIPER AND WASHER
EXTERIOR
51-40
STEP 10. Connector check: C-219 ETACS-ECU
connector, C-302 column switch connector
AC509934
Connector: C-219 <LHD>
AD
C-219 (GR)
Harness side
Junction block
AC509943
Connector: C-219 <RHD>
AB
C-219 (GR)
Harness side
Junction block
(Rear view)
AC903858 AJ
Harness side
Connector: C-302 <LHD>
AC903869AJ
Harness side
Connector: C-302 <RHD>
Q: Is the check result normal?
YES :
Go to Step 11.
NO :
Repair the connector.
STEP 11. Check the wiring harness between C-
302 column switch connector terminal No.8 and
C-219 ETACS-ECU connector terminal No.64.
AC903858 AJ
Harness side
Connector: C-302 <LHD>
AC903869AJ
Harness side
Connector: C-302 <RHD>
AC509934
Connector: C-219 <LHD>
AD
C-219 (GR)
Harness side
Junction block
AC509943
Connector: C-219 <RHD>
AB
C-219 (GR)
Harness side
Junction block
(Rear view)
• Check the wiper backup circuit.
Q: Is the check result normal?
YES :
Go to Step 12.
NO :
Repair the wiring harness.
WINDSHIELD WIPER AND WASHER
EXTERIOR
51-41
STEP 12. Retest the system.
The windshield wiper should now work normally at
all.
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 :
Replace the ETACS-ECU and register the
ID codes.
Inspection Procedure 2: The Windshield Wipers do not Work Normally.
CAUTION
Whenever the ECU is replaced, ensure that the input and output signal circuits are normal.
AC903744
Windshield Wiper Motor Drive Circuit
ETACS-ECU
CIRCUIT
BREAKER
WIPER SPEED
SWITCHING
RELAY
WINDSHIELD
WIPER MOTOR
INPUT SIGNAL
· WINDSHIELD WIPER HI SPEED SWITCH
· WINDSHIELD WIPER INTERMIT SWITCH
· WINDSHIELD WIPER LO SPEED SWITCH
· WINDSHIELD WIPER MIST SWITCH
J/B SIDE
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, the column switch or the
ETACS-ECU may be defective.
PROBABLE CAUSES
• Malfunction of the windshield wiper motor
• Malfunction of the column switch
• Malfunction of the ETACS-ECU
• Damaged harness wires and connectors
WINDSHIELD WIPER AND WASHER
EXTERIOR
51-42
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III diagnosis code.
When the ignition switch is turned to the "LOCK"
(OFF) position, check that the ETACS-ECU does not
set the diagnosis code.
Q: Is the diagnosis code set?
YES :
Refer to GROUP 54A, Diagnosis Code
Chart .
NO :
Go to Step 2.
STEP 2. M.U.T.-III data list
Check the input signals below which are related to
the windshield wiper.
(1) Turn the ignition switch to the "ON" position.
(2) Operate the windshield wiper switch.
Item
No.
Item name
Normal condition
65
Front wiper output
Turns ON when each
switch is operated.
66
Front wiper HI output
OK: Normal conditions are displayed for
all the functions of the switch.
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Refer to GROUP 54A, Inspection Procedure
C-1 "The column switch (lighting and wiper
switch) signal is not received ."
STEP 3. 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 4.
NO :
Repair the defective connector.
STEP 4. Check the windshield wiper motor
assembly.
Refer to
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Replace the windshield wiper motor
assembly.
STEP 5. 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 6.
NO :
Go to Step 10.
WINDSHIELD WIPER AND WASHER
EXTERIOR
51-43
STEP 6. Connector check: C-218 ETACS-ECU
connector
AC509934
Connector: C-218 <LHD>
AJ
Junction
block
Junction block side
AC509943
Connector: C-218 <RHD>
AC
Junction block
(Rear view)
Junction block side
Q: Is the check result normal?
YES <LH drive vehicles> :
Go to Step 7.
YES <RH drive vehicles> :
Go to Step 8.
NO :
Repair the defective connector.
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