Mitsubishi Outlander (2013+). Manual - part 527

KEYLESS ENTRY SYSTEM <Vehicles without keyless operation system>

BODY

42A-128

STEP 2. Check whether the diagnosis code is 
reset.
Replace the transmitter by which the diagnosis code 
is set with a new one, register the key (Refer to 

P.42A-134

.), and recheck if the diagnosis code is 

set.
(1) Push the lock switch or unlock switch of 

transmitter.

(2) Check if the diagnosis code is set.

Q: Is the diagnosis code set?

YES : 

Replace ETACS-ECU and register the ID 

codes (Refer to 

P.42A-134

).

NO : 

The diagnosis is complete.

Code No.B1A10 Keyless/KOS key 1 low battery

 

Code No.B1A11 Keyless/KOS key 2 low battery

 

Code No.B1A12 Keyless/KOS key 3 low battery

 

Code No.B1A13 Keyless/KOS key 4 low battery

 

Code No.B1A14 Keyless key 5 low battery

 

Code No.B1A15 Keyless key 6 low battery

 

Code No.B1A16 Keyless key 7 low battery

 

Code No.B1A17 Keyless key 8 low battery

CAUTION

When replacing the ECU, always check that the 
communication circuit is normal.

DIAGNOSTIC FUNCTION

ETACS-ECU sets the diagnosis code No. B1A10, 
B1A11, B1A12, B1A13, B1A14, B1A15, B1A16, or 
B1A17 when it receives low battery voltage signal 
from the transmitter.

JUDGMENT CRITERIA

• B1A10: ETACS-ECU determines that the abnor-

mality is present when it receives low battery volt-
age signal from the transmitter 1 (the first 
transmitter registered in ETACS-ECU) five con-
secutive times.

• B1A11: ETACS-ECU determines that the abnor-

mality is present when it receives low battery volt-
age signal from the transmitter 2 (the second 
transmitter registered in ETACS-ECU) five con-
secutive times.

• B1A12: ETACS-ECU determines that the abnor-

mality is present when it receives low battery volt-
age signal from the transmitter 3 (the third 
transmitter registered in ETACS-ECU) five con-
secutive times.

• B1A13: ETACS-ECU determines that the abnor-

mality is present when it receives low battery volt-
age signal from the transmitter 4 (the fourth 
transmitter registered in ETACS-ECU) five con-
secutive times.

• B1A14: ETACS-ECU determines that the abnor-

mality is present when it receives low battery volt-
age signal from the transmitter 5 (the fifth 
transmitter registered in ETACS-ECU) five con-
secutive times.

• B1A15: ETACS-ECU determines that the abnor-

mality is present when it receives low battery volt-
age signal from the transmitter 6 (the sixth 
transmitter registered in ETACS-ECU) five con-
secutive times.

• B1A16: ETACS-ECU determines that the abnor-

mality is present when it receives low battery volt-
age signal from the transmitter 7 (the seventh 
transmitter registered in ETACS-ECU) five con-
secutive times.

• B1A17: ETACS-ECU determines that the abnor-

mality is present when it receives low battery volt-
age signal from the transmitter 8 (the eighth 
transmitter registered in ETACS-ECU) five con-
secutive times.

PROBABLE CAUSES

• Battery failure in the transmitter

• Malfunction of the transmitter

• Malfunction of ETACS-ECU

KEYLESS ENTRY SYSTEM <Vehicles without keyless operation system>

BODY

42A-129

TROUBLE SYMPTOM CHART

M1428001800306

Symptom

Inspection 
procedure 
number

Reference 
page

Keyless entry system does not work.

1

P.42A-129

Keyless entry hazard lamp answerback function or the room lamp 
answerback function does not work normally.

2

P.42A-131

The timer lock function does not work after the doors have been unlocked by 
the keyless entry system.

3

P.42A-131

Multimode keyless entry system function does not work at all <Vehicles with 
electric retractable remote controlled door mirrors>.

4

P.42A-132

Power door locks with selective unlocking does not work.

5

P.42A-132

SYMPTOM PROCEDURES

Inspection Procedure 1: Keyless entry system does not work.

CAUTION

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

OPERATION

The lock/unlock signals from the transmitter are 
received by receiver antenna, and then sent to 
ETACS-ECU from receiver antenna. When 
ETACS-ECU receives signals from the key reminder 
switch, all the door switches and the tailgate latch, 
ETACS-ECU actuates the keyless entry system.

PROBABLE CAUSES

• Malfunction of the key reminder switch

• Malfunction of the door switches

• Malfunction of the tailgate switch

• Malfunction of the transmitter

• Malfunction of the driver's door lock actuator

• Malfunction of the receiver antenna

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

DIAGNOSTIC PROCEDURE

STEP 1. ETACS-ECU coding data check
(1) Use M.U.T.-III to read out the option coding 

information in ETACS-ECU (Refer to GROUP 00 

− Precautions before Service - Coding Reference 
Table ).

(2) Check if the "Keyless function" is "Enabled."

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Operate the M.U.T.-III to set the option 
coding "keyless" to "enabled," and check 
the trouble symptom.

STEP 2. M.U.T.-III CAN bus diagnostics
Use M.U.T.-III to diagnose the CAN bus lines.

Q: Is the CAN bus normal?

YES : 

Go to Step 3.

NO : 

Repair the CAN bus line. (Refer to GROUP 
54C 

− Troubleshooting .)

STEP 3. M.U.T.-III diagnosis code
Check that ETACS-ECU sets a diagnosis code.

Q: Is the diagnosis code set?

YES : 

Refer to diagnosis code chart 

P.42A-126

.

NO : 

Go to Step 4.

STEP 4. Check the power supply system
With the ignition switch in the LOCK (OFF) position, 
check if the following function operates normally:

• Hazard warning lamp

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Refer to GROUP 54A 

− Malfunction of 

ETACS-ECU power supply circuit .

KEYLESS ENTRY SYSTEM <Vehicles without keyless operation system>

BODY

42A-130

STEP 5. Check the operation of the central door 
locking system.
Check that the central door locking system works 
normally.

Q: Is the check result normal?

YES : 

Go to Step 6.

NO : 

Refer to GROUP 42A 

− Troubleshooting 

P.42A-26

.

STEP 6. M.U.T.-III data list
Check for the signals related to the keyless entry 
system operation.

• Turn the ignition switch to the LOCK (OFF) posi-

tion.

• Remove the ignition key from the ignition key cyl-

inder.

• Close the driver's door.

• Close the front passenger's doors.

• Close the RH-side rear door.

• Close the LH-side rear door.

•

Item No.

Item name

Normal 
condition

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

Close the tailgate

OK: Normal conditions are displayed for all 
the items.

Q: Is the check result normal?

Normal conditions are displayed for all the items. : 

Go to Step 7.

Normal condition is not displayed for item No. 256. 
: 

Refer to GROUP 54A 

− Inspection 

Procedure 5: "Front door switch (driver’s 
side) signal is not received ."

Normal condition is not displayed for item No. 257. 
: 

Refer to GROUP 54A 

− Inspection 

Procedure 6: "Front door switch 
(passenger’s side) signal is not received ."

Normal condition is not displayed for item No. 258. 
: 

Refer to GROUP 54A 

− Inspection 

Procedure 7: "Rear door switch (RH) signal 
is not received ."

Normal condition is not displayed for item No. 259. 
: 

Refer to GROUP 54A 

− Inspection 

Procedure 8: Rear door switch (LH) signal is 
not received .

Normal condition is not displayed for item No. 260. 
: 

Refer to GROUP 54A 

− Inspection 

Procedure 9: The tailgate latch switch signal 
is not received .

Normal condition is not displayed for item No. 264. 
: 

Refer to GROUP 54A 

− Inspection 

Procedure 3: "Key reminder switch signal is 
not received ."

STEP 7. Check of short to power supply, short to 
earth, open circuit in SIGR, PWRC line between 
ETACS-ECU connector and receiver antenna 
connector.

Q: Is the check result normal?

YES  : 

Go to Step 8.

NO : 

Repair the connector(s) wiring harness.

STEP 8. 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 ).

NO : 

Replace receiver antenna (Refer to GROUP 
54A 

− Receiver antenna ) and turn ignition 

switch to ON and OFF. Then go to step 9.

STEP 9. Retest the system.
Check if the keyless entry system works normally.

Q: Is the check result normal?

YES : 

The diagnosis is complete.

NO : 

Replace ETACS-ECU and register the ID 
codes (Refer to 

P.42A-134

).

KEYLESS ENTRY SYSTEM <Vehicles without keyless operation system>

BODY

42A-131

Inspection Procedure 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 
customise function.

PROBABLE CAUSES

• Defective hazard warning lamp

• Malfunction of the room lamp

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

STEP 1. Check the operation of the hazard 
warning lamp.
Check that the hazard warning lamp illuminates nor-
mally.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Refer to GROUP 54A, Inspection Procedure 
1 "The hazard warning lamp do not 
illuminate ".

STEP 2. Check the operation of the room lamp.
Check that the room lamp illuminates normally.

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Refer to GROUP 54A, Check Chart for 
Trouble Symptoms .

STEP 3. Check the operation of the keyless entry 
system.
If the keyless entry system is operated, check that 
the doors can be locked and unlocked normally.

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Refer to Trouble symptom chart 

P.42A-129

.

STEP 4. Check the customisation function.
Using the customisation function, check that the 
number of flashings of hazard warning lamp is set to 
any of the followings other than "LOCK: 0/UNLOCK: 
0."

• Lock 1 Unlock 2

• Lock 1 Unlock 0

• Lock 0 Unlock 2

• Lock 2 Unlock 1

• Lock 0 Unlock 1

• Lock 2 Unlock 0

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Enable the keyless entry hazard lamp 
answerback function by using the 
customisation function (Refer to 

P.42A-134

).

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

NO : 

Replace the ETACS-ECU and register the 
ID codes (Refer to 

P.42A-134

).

Inspection Procedure 3: 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.