Mitsubishi L200. Manual - part 559

 

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Mitsubishi L200. Manual - part 559

 

 

WINDSHIELD WIPER AND WASHER

EXTERIOR

51-52

YES : 

Go to Step 11.

NO : 

Repair the connector.

STEP 11. Check the wiring harness between A-05 
windshield wiper motor connector terminal No.5 
and C-218 ETACS-ECU connector terminal No.6.

AC903889

AC

Connector: A-05 <RHD>

Harness side

A-05 (GR)

AC509943

Connector: C-218 <RHD>

AC

Junction block

 (Rear view)

Junction block side

NOTE: 

AC509936

Connector: C-210 <RHD>

Harness side

AJ

Junction block 

(Front view)

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.

STEP 12. Retest the system.
Check that the windshield wipers stop at the speci-
fied park position.

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.

WINDSHIELD WIPER AND WASHER

EXTERIOR

51-53

Inspection Procedure 4: The Intermittent Wiper Interval cannot be Adjusted by Operating The 
Windshield Intermittent Wiper Volume Control.

CAUTION

Whenever the ECU is replaced, ensure that the input and output signal circuits are normal.

Windshield Intermittent Wiper Control Circuit

ETACS-ECU

LIN COMMUNICATION LINE

COLUMN-ECU

INPUT SIGNAL

WINDSHIELD INTERMITTENT
WIPER INTERVAL
ADJUSTING KNOB

COMMENTS ON TROUBLE SYMPTOM
The column switch or the ETACS-ECU may be 
defective. Alternatively, there are cases where the 
windshield intermittent wiper volume is disabled for 
changing the windshield intermittent wiper interval by 
using the adjustment function.

PROBABLE CAUSES

• Malfunction of the column switch

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

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 intermittent wiper function.

Item 
No.

Item name

Normal condition

86

Intermittent wiper 
interval

Operation duration is 
influenced by the 
intermittent wiper 
interval adjusting 
knob position.

OK: Normal condition is displayed.

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. Retest the system.
Check that the windshield intermittent wiper interval 
can be adjusted by operating the windshield intermit-
tent wiper volume control.

OK: The intermittent wiper interval is 
changed as the intermittent wiper volume is 
rotated.

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.

WINDSHIELD WIPER AND WASHER

EXTERIOR

51-54

Inspection Procedure 5: The Intermittent Wiper Interval is not Changed According to The Vehicle 
Speed.

CAUTION

Whenever the ECU is replaced, ensure that the input and output signal circuits are normal.

Windshield Intermittent Wiper Control Circuit

ETACS-ECU

LIN 
COMMUNICATION
LINE

COLUMN-ECU

INPUT SIGNAL

WINDSHIELD INTERMITTENT
WIPER INTERVAL
ADJUSTING KNOB

CAN COMMUNICATION
LINE (CAN_H LINE)

CAN COMMUNICATION
LINE (CAN_L LINE)

ENGINE-ECU

INPUT SIGNAL

VEHICLE SPEED

COMMENTS ON TROUBLE SYMPTOM
The ETACS-ECU calculates the intermittent wiper 
interval according to the vehicle speed signal which 
is sent by the engine-ECU.
If the intermittent wiper interval does not depend on 
the vehicle speed, the input circuit of the vehicle 
speed signal or the ETACS-ECU may be defective. 
Alternatively, there are cases where the intermittent 
wiper interval does not depend on the vehicle speed 
because of the setting by the adjustment function.

PROBABLE CAUSES

• The CAN bus line is defective.

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

STEP 1. Retest the system.
Check that the windshield intermittent wiper interval 
can be adjusted by operating the windshield intermit-
tent wiper volume control.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Refer to Inspection Procedure 4 " The 
intermittent wiper interval cannot be 
adjusted by operating the windshield 
intermittent wiper volume control 

P.51-53

."

STEP 2. Check of the adjustment details for the 
vehicle speed-sensing wiper function
Check that the vehicle speed-dependent wiper func-
tion is set to "Operation" using the customisation 
function of M.U.T-III.

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Using the customisation function of M.U.T-
III, set the speed-dependent wiper function 
to "Operation."

STEP 3. M.U.T.-III CAN bus diagnostics
Use the M.U.T.-III to diagnose the CAN bus lines.

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Repair the CAN bus line (Refer to GROUP 
54C, Troubleshooting ).

STEP 4. Check the diagnosis code of the engine-
ECU.
Check if the diagnosis code is set in either of the 
engine-ECU.

Q: Is the diagnosis code set?

YES : 

Diagnose the engine-ECU (Refer to 

GROUP 13A, Troubleshooting ).

NO : 

Go to Step 5.

WINDSHIELD WIPER AND WASHER

EXTERIOR

51-55

STEP 5. 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 6.

STEP 6. Retest the system.
Check that the intermittent wiper interval depends on 
the vehicle speed.

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.

 

 

 

 

 

 

 

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