Mitsubishi Colt Ralliart. Manual - part 394

 

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Mitsubishi Colt Ralliart. Manual - part 394

 

 

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-84

KEYLESS ENTRY SYSTEM

INSPECTION PROCEDURE E-1: Keyless entry system does not work.

CAUTION

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

COMMENTS ON TROUBLE SYMPTOM

If the keyless entry system does not work normally, 
the input signal circuits to the components below or 
the ETACS-ECU may be defective.

• Key reminder switch

• All of the door switches

• Keyless entry transmitter

• Driver's door lock actuator

POSSIBLE CAUSES

• Malfunction of the key reminder switch

• Malfunction of the door switches

• Malfunction of the keyless entry transmitter

• Malfunction of the driver's door lock actuator

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

DIAGNOSTIC PROCEDURE

Step1. ECU check by using the SWS monitor
Check that the power supply and earth lines to the 
ETACS-ECU and the SWS communication lines are 
normal.

• Ignition switch: OFF

ECU TO BE CHECKED

• ETACS ECU

OK: "OK" is displayed on the "ETACS ECU" 
menu.

Q: Is the check result normal?

YES : 

Go to Step2.

NO : 

Refer to Inspection Procedure A-3 
"Communication with the ETACS-ECU is 
not possible 

P.54C-41

."

Keyless Entry System Function Circuit

ETACS-ECU

INPUT SIGNAL

· ALL OF THE DOOR SWITCHES
· DRIVER'S DOOR LOCK ACTUATOR SWITCH
· KEYLESS ENTRY TRANSMITTER SWITCH
· KEY REMINDER SWITCH

KEYLESS ENTRY
RECEIVER

Main

Index

Group

TOC

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-85

Step2. Use the SWS monitor to examine the 
keyless entry system for signal reception.
Check the condition of the keyless entry transmitter.

OK: By operating the switch as shown in the 
table above, relevant normal conditions are 
displayed.

Q: Are normal conditions displayed?

YES : 

Go to Step3.

NO : 

Refer to Inspection Procedure N-12 "Each 
switch signal of the keyless entry transmitter 
is not received 

P.54C-229

."

Step 3. SWS monitor data list
Check the SWS communication input signal, which 
are related to the keyless entry system.

<Selected item> ETACS

• Each door: Closed to open

OK: Normal condition is displayed.

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Refer to inspection procedure N-10 "All the 
door switch signals are not received 

P.54C-222

."

Step4. Retest the system.
Check the keyless entry system works 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 E-2: Keyless Entry hazard lamp answerback function or the Room Lamp 
Answerback Function does not Work Normally.

CAUTION

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

COMMENTS ON TROUBLE SYMPTOM

If the hazard warning lamp and the room lamp work 
normally, the ETACS-ECU may be defective.
Alternatively, it is possible that the keyless entry haz-
ard lamp answerback function was disabled by the 
customisation function.

POSSIBLE CAUSES

• Malfunction of the turn-signal lamp

• Malfunction of the room lamp

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

Step 1. Customize function by using the SWS 
monitor
Check that "KEYLESS (HAZARD)" is set to 
"LOCK/UNLOCK", "LOCKED" or "UNLOCKED" by 
using the adjustment function.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Set "KEYLESS (HAZARD)" to 
"LOCK/UNLOCK", "LOCKED" or 
"UNLOCKED" by using the adjustment 
function. Refer to 

P.54C-240

.

Operation switch

Normal conditions 
(received signal)

LOCK

LOCK

UNLOCK

UNLOCK

Item No.

Item name

Normal 
condition

Item 40

ALL DOOR SW

from OFF 
to ON

Main

Index

Group

TOC

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-86

Step 2. Check the operation of the hazard 
warning lamp.
Check that the hazard warning lamps illuminate nor-
mally.

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Refer to inspection procedure L-2 "The 
hazard warning lamps do not illuminate 

P.54C-173

."

Step 3. Check the operation of the room lamps.
Check that the room lamps illuminate normally.

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Refer to inspection procedure M-2 "The 
room lamp does not illuminate normally 

P.54C-191

."

Step 4. ECU check by using the SWS monitor
Check that the power supply and earth lines to the 
ETACS-ECU and the SWS communication lines are 
normal.

• Ignition switch: OFF

ECU TO BE CHECKED

• ETACS ECU

OK: "OK" is displayed on the "ETACS ECU" 
menu.

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Refer to Inspection Procedure A-3 
"Communication with the ETACS-ECU is 
not possible 

P.54C-41

."

Step 5. Retest the system.
Check that the keyless entry hazard lamp answer-
back function or the room lamp answerback function 
work 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.

Main

Index

Group

TOC

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-87

INSPECTION PROCEDURE E-3: Encrypted Code cannot be Registered.

CAUTION

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

COMMENTS ON TROUBLE SYMPTOM

If the encrypted code registration mode is not 
entered, the key reminder switch, the hazard warning 
lamp switch or the ETACS-ECU may be defective.
If the registration is not possible although the regis-
tration mode is entered, the keyless entry transmitter 
or the ETACS-ECU may be defective.

POSSIBLE CAUSES

• Malfunction of the keyless entry transmitter

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

Step 1. Check the encrypted code registration 
mode.
Check that the encrypted code registration mode is 
entered.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Go to Step 3.

Step2. Use the SWS monitor to examine the 
keyless entry system for signal reception.
Check the condition of the keyless entry transmitter.

OK: By operating the switch as shown in the 
table above, relevant normal conditions are 
displayed.

Q: Are the check result normal?

YES : 

Go to Step3.

NO : 

Refer to Inspection Procedure N-12 "Each 
switch signal of the keyless entry transmitter 
is not received 

P.54C-229

."

INPUT SIGNAL

ETACS-ECU

· HAZARD WARNING LAMP SWITCH
· KEYLESS ENTRY TRANSMITTER SWITCH
· KEY REMINDER SWITCH

Encrypted Transmitter Code Register Mode

Operation switch

Normal conditions 
(received signal)

LOCK

LOCK

UNLOCK

UNLOCK

Main

Index

Group

TOC

 

 

 

 

 

 

 

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