Mitsubishi Lancer Evolution IX. Manual - part 253

INPUT SIGNAL PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-271

DIAGNOSIS PROCEDURE

Step 1. Connector check: C-206 column switch 
connector

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Repair the defective connector.

Step 2. Resistance measurement at the C-206 
column switch connector

(1) Disconnect the connector, and measure at the 

column switch side.

(2) Resistance between C-206 column switch 

connector terminal No.6 and body earth

OK: The resistance should rise from 0 to 
1 k

Ω when the windshield intermittent 

wiper volume is rotated from "Fast" to 
"Slow".

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Replace the column switch.

AC310479

AB

Connector: C-206
<LHD>

Harness side

AC310481AB

Harness side

Connector: C-206
<RHD>

AC310479

AB

Connector: C-206
<LHD>

Harness side

AC310481AB

Harness side

Connector: C-206
<RHD>

AC301541GV

Connector C-206
(Harness side)

INPUT SIGNAL PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-272

Step 3. Connector check: C-228 ETACS-ECU 
connector

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Repair the defective connector.

Step 4. Check the wiring harness between C-206 
column switch connector terminal No.6 and 
C-228 ETACS-ECU connector terminal No.66.

• Check the input line for open circuit.

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Repair the wiring harness.

AC310450

Connector: C-228

AE

Junction block (rear view)

Harness side

C-228(GR)

<LHD>

AC310461

Junction block (rear view)

Connector: C-228

AD

<RHD>

C-228(GR)

Harness side

AC310450

Connector: C-228

AE

Junction block (rear view)

Harness side

C-228(GR)

<LHD>

AC310461

Junction block (rear view)

Connector: C-228

AD

<RHD>

C-228(GR)

Harness side

AC310479

AB

Connector: C-206
<LHD>

Harness side

AC310481AB

Harness side

Connector: C-206
<RHD>

INPUT SIGNAL PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-273

Step 5. SWS monitor data list.

<Selected item> ETACS ECU

• Ignition switch: ACC

• Wiper switch: INT

OK: The display will be changed as the inter-
mittent wiper volume is rotated.

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.

Item No.

Item name

Normal condition

Item 37

INT WIPE TIME

2.4 to 18.0 s

INPUT SIGNAL PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-274

INSPECTION PROCEDURE L-7: When the power window main switch is operated, the switch signals 
are not received.

CAUTION

Whenever the ECU is replaced, ensure that the 
input signal circuit is normal.

J/B SIDE

POWER
WINDOW RELAY

ETACS-ECU

POWER WINDOW
MAIN SWITCH

CPU

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   

FUSIBLE
LINK

5

Power Window Main Switch Circuit