Mitsubishi Colt Ralliart. Manual - part 428

INPUT SIGNAL PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-220

Step 2. Check the hazard warning lamp switch.
Refer to GROUP 54A 

− Hazard warning lamp switch 

P.54A-87

.

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Replace the hazard warning lamp switch.

Step 3. Resistance measurement at the B-09 
hazard warning lamp switch connector.

(1) Disconnect the connector, and measure at the 

wiring harness side.

(2) Resistance between B-09 hazard warning lamp 

switch connector terminal No.2 and body earth

OK: Continuity exists (2 

Ω or less)

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Go to Step 4.

Step 4. Check the wiring harness between B-09 
hazard warning lamp switch connector terminal 
No.2 to the body earth.

NOTE: Prior to the wiring harness inspection, check 
joint connector B-25, and repair if necessary.

• Check the input line for open circuit.

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 

P.00-13

).

NO : 

Repair the wiring harness.

Step 5. Connector check: B-133 ETACS-ECU 
connector

Q: Is the check result normal?

YES : 

Go to Step 6.

NO : 

Repair the defective connector.

AC401055

AJ

Connector: B-09

Harness side

AC310506DR

Connector B-09 
(Harness side)

AC401056

Connectors: B-09, B-25

AE

B-25

B-25

B-25

B-09

Harness side

AC313826AC

B-133 (GR)

Connector: B-133

Harness side

Junction block (Rear view)

Main

Index

Group

TOC

INPUT SIGNAL PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-221

Step 6. Check the wiring harness between B-133 
ETACS-ECU connector terminal No.71 to B-09 
hazard warning lamp switch connector terminal 
No.1.

• Check the input line for open circuit.

Q: Is the check result normal?

YES : 

Go to Step 7.

NO : 

Repair the wiring harness.

Step 7. ETACS switch data by using the SWS 
monitor
Check the input signal from the hazard warning lamp 
switch.

• hazard warning lamp switch: from OFF to ON

OK: Normal condition is displayed.

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 

P.00-13

).

NO : 

Replace the ETACS-ECU.

AC401055

AJ

Connector: B-09

Harness side

AC313826AC

B-133 (GR)

Connector: B-133

Harness side

Junction block (Rear view)

Item No.

Item name

Normal 
condition

Item 04

HAZARD LMP SW

OFF to 
ON (only 
when 
switch is 
operated)

Main

Index

Group

TOC

INPUT SIGNAL PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-222

Inspection Procedure N-10: All the door switch signals are not received.

CAUTION

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

COMMENTS ON TROUBLE SYMPTOM

Input signals from all the door switches are used to 
operate the functions below. If the signal(s) are 
abnormal, these functions will not work normally.

• Door-ajar warning buzzer

• Keyless entry system

• Room lamp

• Door-ajar warning lamp

POSSIBLE CAUSES

• Malfunction of the door switches

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

DOOR SWITCH
(FRONT: RH)

DOOR SWITCH
(REAR: RH)

DOOR SWITCH
(REAR: LH)

DOOR SWITCH
(FRONT: LH)

ETACS-ECU

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

TAILGATE
SWITCH

Door Switches Input Circuit

Main

Index

Group

TOC

INPUT SIGNAL PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-223

DIAGNOSIS PROCEDURE

Step 1. SWS monitor data list

<Selected item> ETACS ECU

• Driver's door is open

OK: Normal condition is displayed.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Refer to inspection procedure N-3 "The 
driver's door switch signal is not received 

P.54C-205

."

Step 2. ETACS switch data by using the SWS 
monitor
Check the input signal from the passenger's door 
switch.

• Passenger’s door: Close → Open

OK: Normal condition is displayed.

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Refer to inspection procedure N-14 "The 
passenger's door switch signal is not 
received 

P.54C-234

."

Step 3. Connectors check: C-29 (front: RH), C-19 
(front: LH), C-08 (rear: RH) or C-14 (rear: LH) door 
switch connectors or E-08 <tailgate> tailgate 
switch connector, and B-133 ETACS-ECU 
connector

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Repair the defective connector.

Item No.

Item name

Normal 
condition

Item 32

DR DOOR SW

ON

Item No.

Item name

Normal 
condition

Item 05

PASS DOOR SW

from OFF 
to ON

AC313826AC

B-133 (GR)

Connector: B-133

Harness side

Junction block (Rear view)

AC401057

AG

Connectors: C-08, C-29

Harness side

C-08, C-29

C-08

C-29

AC401059

Connectors: C-14, C-19

AE

C-14, C-19

C-14

C-19

Harness side

AC401046

Connector: E-08

AE

Harness side

E-08 (B)

Main

Index

Group

TOC