Mitsubishi Colt Ralliart. Manual — part 365

INPUT SIGNAL PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-204

Step 4. Retest the system.
Check that the ignition switch (IG1) signal is received
normally.

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.

INSPECTION PROCEDURE N-3: The driver's door switch signal is not received.

CAUTION

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

COMMENTS ON TROUBLE SYMPTOM

Input signal from the driver's door switch is used to
operate the functions below. If the signal is abnormal,
these functions will not work normally.

• Lamp reminder buzzer

• Keyless entry system

• Power window timer

• Ignition key cylinder illumination lamp

• Door-ajar warning lamp

POSSIBLE CAUSES

• Malfunction of the driver's door switch

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

ETACS-
ECU

DOOR SWITCH
(FRONT: RH)

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

Driver's Door Switch Input Circuit

Main

Index

Group

TOC

INPUT SIGNAL PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-205

DIAGNOSIS PROCEDURE

Step 1. Check the installation condition.
Check that the door switch (front: RH) is installed on
the body correctly.

Q: Is the check result normal?

YES :

Go to Step 2.

NO :

Correct the installation condition.

Step 2. Connector check: C-29 door switch (front:
RH) connector.

Q: Is the check result normal?

YES :

Go to Step 3.

NO :

Repair the defective connector.

Step 3. Check the door switch (front: RH).
Refer to GROUP 42

− Door

P.42-39

.

Q: Is the check result normal?

YES :

Go to Step 4.

NO :

Replace the door switch (front: RH).

Step 4. Connector check: B-133 ETACS-ECU
connector.

Q: Is the check result normal?

YES :

Go to Step 5.

NO :

Repair the defective connector.

Step 5. Check the wiring harness between C-29
door switch (front: RH) connector terminal No.1
to B-133 ETACS-ECU connector terminal No.51.

NOTE:

Prior to the wiring harness inspection, check joint
connector B-23 and B-24, and repair if necessary.

• Check the input line for open circuit.

Q: Is the check result normal?

YES :

Go to Step 6.

NO :

Repair the wiring harness.

AC401057

AF

Connector: C-29

Harness side

AC313826AC

B-133 (GR)

Connector: B-133

Harness side

Junction block (Rear view)

AC401057

AF

Connector: C-29

Harness side

AC313826AC

B-133 (GR)

Connector: B-133

Harness side

Junction block (Rear view)

AC401056

Connectors: B-23, B-24

AC

B-23

B-24

B-24

B-23

Main

Index

Group

TOC

INPUT SIGNAL PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-206

Step 6. Retest the system.
Check that the door switch (front: RH) signal is
received normally.

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.

INSPECTION PROCEDURE N-4: The column switch (lighting and turn-signal lamp switch) signal is
not received.

CAUTION

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

COMMENTS ON TROUBLE SYMPTOM

Input signal from the column switch (lighting and
turn-signal lamp switch) is used to operate the func-
tions below. If the signal is abnormal, these functions
will not work normally.

• Lamp reminder buzzer

• Headlamp and tail lamp

• Fog lamp

• Turn signal lamp

POSSIBLE CAUSES

• Malfunction of the column switch

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

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

Q: Is the diagnosis code set?

YES :

Refer to diagnosis code chart

P.54B-18

.

NO :

Go to Step 2.

Step 2. Retest the system.
Replace the column switch, and check if the column
switch (lighting and turn-signal lamp switch) sends
signal.
(1) Replace the column switch.
(2) Check if the column switch (lighting and

turn-signal switch) sends signal.

Q: Is the check result normal?

YES :

The procedure is complete.

NO :

Replace the ETACS-ECU.

Lighting Switch Input Circuit

(DIMMER· PASSING SWITCH)

(LIGHTING SWITCH)

TURN-SIGNAL
LAMP SWITCH

COLUMN SWITCH

COLUMN-ECU

Main

Index

Group

TOC

INPUT SIGNAL PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-207

INSPECTION PROCEDURE N-5: The column switch (windshield wiper washer and rear wiper washer
switch) signal is not received.

CAUTION

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

COMMENTS ON TROUBLE SYMPTOM

Input signal from the column switch (wiper switch) is
used to operate the functions below. If the signal is
abnormal, these functions will not work normally.

• Windshield wiper and washer

• Rear wiper and washer

POSSIBLE CAUSES

• Malfunction of the column switch

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

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

Q: Is the diagnosis code set?

YES :

Refer to diagnosis code chart

P.54B-18

.

NO :

Go to Step 2.

Step 2. Retest the system.
Replace the column switch, and check if the column
switch (windshield wiper washer and rear wiper
washer switch) sends signal.
(1) Replace the column switch.
(2) Check if the column switch (windshield

wiper/washer and rear wiper washer switch)
sends signal.

Q: Is the check result normal?

YES :

The procedure is complete.

NO :

Replace the ETACS-ECU.

WINDSHIELD
WIPER SWITCH

COLUMN-ECU

COLUMN SWITCH

WINDSHIELD
WASHER SWITCH

REAR WIPER AND
WASHER SWITCH

Wiper and Washer Switch Input Circuit

Main

Index

Group

TOC