Mitsubishi Lancer Evolution IX. Manual — part 220

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-139

INSPECTION PROCEDURE E-2: Keyless entry hazard warning 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 warning lamp answerback function was disabled
by the adjustment function.

POSSIBLE CAUSES

• Defective turn-signal lamp

• Malfunction of the room lamp

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

Step 1. Check the adjustment function.
Check that the keyless entry hazard warning lamp
answerback function has been enabled by using the
adjustment function.

Q: Is the check result normal?

YES :

Go to Step 2.

NO :

Enable the keyless entry hazard warning
lamp answerback function by using the
adjustment function (Refer to GROUP 54B
− Adjustment function

P.54B-302

).

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 I-2 "The
hazard warning lamps do not illuminate

P.54C-213

".

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 K-1 "The
front or rear room lamp does not illuminate
or extinguish normally

P.54C-244

."

Step 4. ECU check on 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

ECUS 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-36

."

Step 5. Retest the system.
Check that the keyless entry hazard warning lamp
answerback 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

Cope with Intermittent Malfunction

P.00-5

).

NO :

Replace the ETACS-ECU.

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-140

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 3.

NO :

Go to Step 2.

ETACS-ECU

INPUT SIGNAL

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

Encrypted Transmitter Code Register Mode

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-141

Step 2. Pulse check
Check the input signals below which are related to
the encrypted code of the keyless entry transmitter.

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

Q: Is the check result normal?

All the signals are received normally. :

Go to Step

3.

The key reminder switch signal is not received. :

Refer to Inspection Procedure L-9 "The key
reminder switch signal is not received

P.54C-281

."

The hazard warning lamp switch signal is not
received. :

Refer to Inspection Procedure L-10

"The hazard warning lamp switch signal is
not received

P.54C-285

."

The keyless entry transmitter switch signal is not
received. :

Refer to Inspection Procedure L-14

"Each switch signal of the keyless entry
transmitter is not received

P.54C-306

."

Step 3. Retest the system.
Check that the encrypted code can be registered.

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.

INSPECTION PROCEDURE E-4: The timer lock function does not work after the doors have been
unlocked by the keyless entry system.

CAUTION

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

COMMENT ON TROUBLE SYMPTOM

If the keyless entry timer lock does not work nor-
mally, the input signal circuit(s) to 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 operation of the keyless entry
system.
Check that the keyless entry system works normally.

Q: Is the check result normal?

YES :

Go to Step 2.

NO :

Refer to Inspection Procedure E-1 "Keyless
entry system does not work

P.54C-137

."

Step 2. Retest the system.
Check that the timer lock works normally.

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.

System switch

Check condition

Key reminder switch

When the inserted
ignition key is pulled out

Hazard warning lamp
switch

When the switch is
turned from off to on

Keyless entry transmitter
switch

When the switch is
turned from off to on

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-142

WINDSHIELD WIPER AND WASHER

INSPECTION PROCEDURE F-1: The windshield wipers do not work at all.

CAUTION

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

FRONT-ECU

WINDSHIELD
WIPER MOTOR

COLUMN
SWITCH

WIPER SPEED
SWITCHING
RELAY

WIPER
AUTOMATIC
STOP RELAY

CIRCUIT
BREAKER

COLUMN-
ECU

IGNITION
SWITCH (ACC)

Windshield Wiper Power Supply Circuit

Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Grey R : Red P : Pink V : Violet PU : Purple