Mitsubishi Colt Ralliart. Manual - part 341

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-108

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

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

Q: Are the check results normal?

All the signals are received normally : 

Go to Step 

3.

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

Refer to Inspection Procedure N-1 "The 
ignition switch (ACC) signal is not received 

P.54B-200

."

Windshield washer switch signal is not received. : 

Refer to Inspection Procedure N-5 "The 
column switch (windshield wiper washer 
and rear wiper washer switch) signal is not 
received 

P.54B-207

."

Step 3. Connector check: A-35 motor connector 
and B-134 ETACS-ECU 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 wiper and washer 

P.51-28

.

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Replace the windshield washer motor.

Step 5. Check the wiring harness between A-35 
washer motor connector terminal Nos.1, 2 to 
B-134 ETACS-ECU connector terminal Nos.12, 9.

NOTE: 

Prior to the wiring harness inspection, check the 
junction block connector B-112 and repair if neces-
sary.

• Check the power supply line for open circuit.

Q: Is the check result normal?

YES : 

Go to Step 6.

NO : 

Repair the wiring harness.

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.

AC509176

Connector: A-35

Harness side

AB

AC313872 AH

Connector: B-134

Harness side

Junction block (Rear view)

AC509176

Connector: A-35

Harness side

AB

AC313872 AH

Connector: B-134

Harness side

Junction block (Rear view)

AC313870

Connector: B-112

BE

Junction block (Front view)

Harness side

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SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-109

Step 6. Retest the system.
Check that the windshield washer works normally.

Q: Is the check result satisfactory?

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 

P.00-13

).

NO : 

Replace the ETACS-ECU.

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SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-110

REAR WIPER AND WASHER

INSPECTION PROCEDURE G-1: The rear wiper does not work at all.

CAUTION

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

COMMENTS ON TROUBLE SYMPTOM

If the rear wiper does not work normally, the input 
signal circuits to the components below, the rear 
wiper motor or the ETACS-ECU may be defective.

• Ignition switch (ACC)

• Rear wiper switch

POSSIBLE CAUSES

• Malfunction of the rear wiper motor

• Malfunction of the column switch

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

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 Wiper Drive Circuit

IGNITION
SWITCH (ACC)

REAR
WIPER RELAY

REAR
WIPER MOTOR

ETACS-ECU

J/B SIDE

REAR WIPER SWITCH

INPUT SIGNAL

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SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-111

DIAGNOSIS PROCEDURE

Step 1. M.U.T.-III diagnosis code
Check that the ETACS-ECU sets a diagnosis code.

Q: Is diagnosis code set?

YES : 

Refer to diagnosis code chart 

P.54B-18

.

NO : 

Go to Step 2.

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

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

Q: Are the check results normal?

All the signals are received normally. : 

Go to Step 

3.

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

Refer to Inspection Procedure N-1 "The 
ignition switch (ACC) signal is not received 

P.54B-200

."

The column switch (rear wiper switch) signal is not 
received. : 

Refer to Inspection Procedure N-5 

"The column switch (windshield wiper 
washer and rear wiper washer switch) 
signal is not received 

P.54B-207

."

Step 3. Connector check: E-04 rear wiper motor 
connector.

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Repair the connector.

Step 4. Check the rear wiper motor.
Refer to GROUP 51 

− Rear wiper and washer 

P.51-38

.

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Replace the rear wiper motor.

Step 5. Resistance measurement at the E-04 rear 
wiper motor connector.

(1) Disconnect the connector, and measure at the 

wiring harness side.

(2) Resistance between E-04 rear wiper motor 

connector terminal No.1 and body earth

OK: Continuity exists (2 

Ω or less)

Q: Is the check result normal?

YES : 

Go to Step 7.

NO : 

Go to Step 6.

System switch

Check condition

Ignition switch (ACC)

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

Column switch (rear 
wiper switch)

When the switch is 
turned from off to on

AC401046

Connector: E-04 

AC

Harness side

AC401046

Connector: E-04 

AC

Harness side

AC313972

Connector E-04
(Harness side)

AN

Main

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