Mitsubishi Lancer Evolution IX. Manual - part 147

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-151

Q: Is the check result normal?

All the signals are received normally. : 

Go to Step 

4.

The ignition switch (IG1) signal is not received. : 

Refer to inspection procedure L-1 "The 
ignition switch (ACC) signal is not received 

P.54B-239

."

The vehicle speed signal (engine-ECU) is not 
received. : 

Refer to inspection procedure L-12 

"The vehicle speed sensor signal is not 
received 

P.54B-278

."

Step 4. 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 

Cope with Intermittent Malfunction 

P.00-5

).

NO : 

Replace the ETACS-ECU.

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-152

INSPECTION PROCEDURE F-7: The windshield washer does not work.

CAUTION

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

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

Windshield Washer Motor Circuit

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-153

COMMENTS ON TROUBLE SYMPTOM

The windshield washer motor, the column switch or 
the front-ECU may be defective.

POSSIBLE CAUSES

• Malfunction of the windshield washer motor

• Malfunction of the column switch

• Malfunction of the front-ECU

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

Step 1. Check the operation of the windshield 
wipers.
Check that the windshield wipers work normally.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Refer to Inspection Procedure F-1 "The 
windshield wipers do not work at all 

P.54B-130

."

Step 2. Pulse check
Check the input signals below which are related to 
the windshield wiper.

OK: The M.U.T.-II/III sounds or the voltmeter 
needle fluctuates. 

Q: Is the check result normal?

All the signals are received normally : 

Go to Step 

3.

The ignition switch (ACC) signal is not received. : 

Refer to inspection procedure L-1 "The 
ignition switch (ACC) signal is not received 

P.54B-239

."

Windshield washer switch signal is not received. : 

Refer to inspection procedure L-5 "The 
column switch (windshield wiper washer 
and rear wiper washer switch) signal is not 
received 

P.54B-249

."

Step 3. Connector check: F-18 windshield washer 
motor connector

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Repair the connector.

Step 4. Check the windshield washer motor 
assembly.
Refer to GROUP 51 

− Windshield washer 

P.51-24

.

Q: Is the check result normal?

YES : 

Go to Step 5

NO : 

Replace the windshield washer motor.

System switch

Check condition

Ignition switch (ACC)

When turned from the 
LOCK (OFF) position to 
the ACC position.

Windshield washer 
switch

When the switch is 
turned from off to on.

AC310467AF

Harness side

Connector: F-18 <LHD>

AC310469

AF

Harness side

Connector: F-18 <RHD>

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-154

Step 5. Resistance measurement at the F-18 
windshield washer motor connector

(1) Disconnect the connector, and measure at the 

wiring harness side.

(2) Continuity between F-18 windshield washer 

motor connector terminal No.1 and body earth

OK: 2

Ω or less

Q: Is the check result normal?

YES : 

Go to Step 7.

NO : 

Go to Step 6.

Step 6. Check the wiring harness between F-18 
windshield washer motor connector terminal 
No.1 and body earth.

• Check the earth wires 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 

P.00-5

).

NO : 

Repair the wiring harness.

Step 7. Connector check: A-11X front-ECU 
connector

Q: Is the check result normal?

YES : 

Go to Step 8.

NO : 

Repair the connector.

AC310467AF

Harness side

Connector: F-18 <LHD>

AC310469

AF

Harness side

Connector: F-18 <RHD>

AC310506

2

1

Connector F-18
(Harness side)

AJ

AC310467AF

Harness side

Connector: F-18 <LHD>

AC310469

AF

Harness side

Connector: F-18 <RHD>

AC310572AC

Connector: A-11X

Relay box side

Battery

29

31 30

28 27

25

26

24

21

22

23