Mitsubishi Outlander GS45X. Manual — part 1181

DIAGNOSIS

TSB Revision

WIRELESS CONTROL MODULE (WCM)

42C-91

STEP 5. Using scan tool MB991958, check data list.
Check the signals related to the keyless entry system opera-
tion.

CAUTION

To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958. Refer to "How to connect the

Scan Tool (M.U.T.-III)

P.42C-7

."

(2) Turn the ignition switch to the "ON" position.
(3) Check the ETACS data list.

• Turn the ignition switch to the LOCK (OFF) position.

• Close the driver's door.

• Close the passenger's door.

• Close the RH-side rear door.

• Close the LH-side rear door.

• Close the liftgate.

• Remove the ignition key from the ignition key cylinder.

(4) Turn the ignition switch to the "LOCK" (OFF) position.

OK: Normal condition are displayed.

Q: Are the check result normal?

YES (Normal conditions are displayed for all the items.)
:

Go to Step 6.

NO (Normal condition is not displayed for item No. 254.)
:

Refer to GROUP 54A, Inspection Procedure 2:
ETACS-ECU does not receive any signal from the
ignition switch (IG1)

P.54A-789

.

NO (Normal condition is not displayed for item No. 256.)
:

Refer to GROUP 54A, Inspection Procedure 5:
ETACS-ECU does not receive any signal from the
front door switch (LH)

P.54A-804

.

NO (Normal condition is not displayed for item No. 257.)
:

Refer to GROUP 54A, Inspection Procedure 6:
ETACS-ECU does not receive any signal from the
front door switch (RH)

P.54A-802

.

Item No.

Item name

Normal
condition

Item 254

IG voltage

Battery
positive
voltage

Item 256

Dr door ajar switch

Close

Item 257

As door ajar switch

Close

Item 258

RR door ajar switch Close

Item 259

RL door ajar switch

Close

Item 260

Trunk/gate trunk ajar
switch

Close

Item 264

Handle lock switch

Key in

→ Key

out

ZC501967

AC404789

AC701411AB

MB991824

MB991827

MB991910

Data link
connector

DIAGNOSIS

TSB Revision

WIRELESS CONTROL MODULE (WCM)

42C-92

NO (Normal condition is not displayed for item No. 258.)
:

Refer to GROUP 54A, Inspection Procedure 8:
ETACS-ECU does not receive any signal from the
rear door switch (RH)

P.54A-809

.

NO (Normal condition is not displayed for item No. 259.)
:

Refer to GROUP 54A, Inspection Procedure 7:
ETACS-ECU does not receive any signal from the
rear door switch (LH)

P.54A-806

.

NO (Normal condition is not displayed for item No. 260.)
:

Refer to GROUP 54A, Inspection Procedure 9:
ETACS-ECU does not receive any signal from the
liftgate switch

P.54A-811

.

NO (Normal condition is not displayed for item No. 264.)
:

Refer to GROUP 54A, Inspection Procedure 3:
ETACS-ECU does not receive any signal from the key
reminder switch.

P.54A-792

.

STEP 6. Retest the system.
Check if the keyless entry system works normally.
Q: Is the check result normal?

YES : Intermittent malfunction (Refer to GROUP 00

− How

to Use Troubleshooting/Inspection Service Points -
How to Cope with Intermittent Malfunction

P.00-15

).

NO : Replace WCM and register the ID codes (Refer to

P.42C-99

).

Inspection Procedure 6: The dome light, the turn-signal lights and the horn do not operate through
the answerback function.

CAUTION

Before replacing the ECU, ensure that the power supply
circuit, the ground circuit and the communication circuit
are normal.

.

COMMENTS ON TROUBLE SYMPTOM

If the hazard warning light, the dome light and the horn work
normally, ETACS-ECU may be faulty. Also, the answerback
function may have been disabled using the customization func-
tion. If the theft alarm is defective, the keyless entry hazard
answerback function may not operate normally.

.

PROBABLE CAUSES

• Malfunction of the turn signal light

• Malfunction of the dome light

• Malfunction of the horn

• Malfunction of the theft alarm sensor

• Malfunction of the theft alarm siren

• Malfunction of ETACS-ECU

• Damaged wiring harness and connectors

DIAGNOSIS

TSB Revision

WIRELESS CONTROL MODULE (WCM)

42C-93

DIAGNOSTIC PROCEDURE

STEP 1. Verify the hazard warning lights.
Check that the hazard warning lights illuminate normally.
Q: Is the check result normal?

YES : Go to Step 2.
NO : Refer to GROUP 54A, Inspection Procedure 1: The

Hazard Warning lights do not Illuminate

P.54A-309

.

STEP 2. Verify the dome light.
Check that the dome light illuminate normally.
Q: Is the check result normal?

YES : Go to Step 3.
NO : Refer to GROUP 54A, Trouble Symptom Chart

P.54A-308

.

STEP 3. Verify the horn.
Check that the horn normally.
Q: Is the check result normal?

YES : Go to Step 4.
NO : Replace the horn (Refer to GROUP 54A, Horn

P.54A-312

).

STEP 4. Check the operation of the keyless entry system.
Operate the transmitter and check that all doors (including the
liftgate) lock and unlock.
Q: Is the check result normal?

YES : Go to Step 5.
NO : Refer to

P.42C-80

.

STEP 5. Check the customize function.
Check that any one of the followings other than "Lock: 0,
Unlock: 0" is set for "Hazard answerback" with a customization
function.

• Lock:1, Unlock:2

• Lock:1, Unlock:0

• Lock:0, Unlock:2

• Lock:2, Unlock:1

• Lock:2, Unlock:0

• Lock:0, Unlock:1

Q: Is the check result normal?

YES : Go to Step 6.
NO : Set "Hazard answerback" to any one other than

"Lock: 0, Unlock: 0" with a customization function
(Refer to

P.42B-199

).

DIAGNOSIS

TSB Revision

WIRELESS CONTROL MODULE (WCM)

42C-94

STEP 6. Check the customize function.
Check that any one of the followings other than "Not sound
horn" is set for "Horn chirp by RKE" with a customization func-
tion.

• Lock any time

• W lock any time

Q: Is the check result normal?

YES : Go to Step 7.
NO : Set "Horn chirp by RKE" to any one other than "Not

sound horn" with a customization function (Refer to

P.42B-199

).

STEP 7. Using scan tool MB991958, read the diagnostic
trouble code.

CAUTION

To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958. Refer to "How to connect

scan tool (M.U.T.-III)

P.42B-13

."

(2) Turn the ignition switch to the "ON" position.
(3) Check whether the theft alarm related DTC is set.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?

YES : Diagnose the theft alarm. Refer to

P.54A-841

.

NO : Go to Step 8.

STEP 8. Check of the troubles.
Check if the keyless entry answerback function works normally.
Q: Is the check result normal?

YES : Intermittent malfunction (Refer to GROUP 00, How to

Use Troubleshooting/Inspection Service Points - How
to Cope with Intermittent Malfunction

P.00-15

).

NO : Replace ETACS-ECU.

ZC501967

AC404789

AC701411AB

MB991824

MB991827

MB991910

Data link
connector