Mitsubishi Outlander (2013+). Manual - part 634

IMMOBILIZER SYSTEM <Vehicles without keyless operation system>

CHASSIS ELECTRICAL

54A-21

IMMOBILIZER SYSTEM <Vehicles without keyless 

operation system>

SPECIAL TOOLS

M1541106600120

Tool

Number

Name

Use

ACB05421

MB992745

MB992746

MB992744

MB992747

MB992748

a

b

c

d

e

DO NOT USE

AB

a. MB992744
b. MB992745
c. MB992746
d. MB992747
e. MB992748

a. Vehicle 

communicatio
n 
interface-Lite 
(V.C.I.-Lite)

b. V.C.I.-Lite 

main harness 
A (for vehicles 
with CAN 
communicatio
n)

c. V.C.I.-Lite 

main harness 
B (for vehicles 
without CAN 
communicatio
n)

d. V.C.I.-Lite 

USB cable 
short

e. V.C.I.-Lite 

USB cable 
long

Diagnosis code check

MB991910

MB991826

MB991955

MB991911

MB991824

MB991827

MB991825

a

b

c

d

e

f

DO NOT USE

IMMOBILIZER SYSTEM <Vehicles without keyless operation system>

CHASSIS ELECTRICAL

54A-22

MB991955

a. MB991824
b. MB991827
c. MB991910
d. MB991911
e. MB991825
f. MB991826

M.U.T.-III 
sub-assembly

a. Vehicle 

communicatio
n interface 
(V.C.I.)

b. M.U.T.-III 

USB cable

c. M.U.T.-III 

main harness 
A (for vehicles 
with CAN 
communicatio
n)

d. M.U.T.-III 

main harness 
B (for vehicles 
without CAN 
communicatio
n)

e. Measuring 

adapter 
harness

f. M.U.T.-III 

trigger 
harness

CAUTION

For vehicles with CAN 
communication, use the M.U.T.-III 
main harness A to send 
simulated vehicle speed. If you 
connect the M.U.T.-III main 
harness B instead, the CAN 
communication does not 
function correctly.
Diagnosis code check

MB991223

a

d

c

b

DO NOT USE

BA

MB991223

a. MB991219
b. MB991220
c. MB991221
d. MB991222

Wiring harness 
set

a. Check 

harness

b. LED harness
c. LED harness 

adapter

d. Probe

Continuity check and voltage 
measurement at harness wire or 
connector

a. For checking connector pin 

contact pressure

b. For checking power supply 

circuit

c. For checking power supply 

circuit

d. For connecting a locally sourced 

tester

Tool

Number

Name

Use

MB992006

IMMOBILIZER SYSTEM <Vehicles without keyless operation system>

CHASSIS ELECTRICAL

54A-23

TROUBLESHOOTING

DIAGNOSIS TROUBLESHOOTING FLOW

M1541106700127

Refer to GROUP 00 

− Contents of Troubleshooting .

DIAGNOSTIC FUNCTION

M1541100500222

HOW TO READ DIAGNOSIS CODE

Refer to GROUP 00, How to Use Troubleshoot-
ing/Inspection Service Points .

HOW TO ERASE DIAGNOSIS CODE

Refer to GROUP 00, How to Use Troubleshoot-
ing/Inspection Service Points . 

CHECK OF FREEZE FRAME DATA

The freeze frame data can be checked by using 
M.U.T.-III. (Refer to GROUP 00 

− How to Use Trou-

bleshooting and Inspection Service Points 

− Diagno-

sis Function .
When detecting fault and storing the diagnosis code, 
the ECU connected to CAN bus line obtains the data 
before the determination of the diagnosis code and 
the data when the diagnosis code is determined, and 
then stores the ECU status of that time. By analysing 
each data from M.U.T.-III, the troubleshooting can be 
performed more efficiently. The displayed items are 
as the table below.

Display item list

Item No.

Item name

Data item

Unit

1

Odometer

Total driving distance after the diagnosis 
code is generated

km

2

Ignition cycle

Number of times the ignition switch is turned 
"ON" or "LOCK (OFF)" after the past failure 
transition.

Number of 
counts is 
displayed.

3

Elapsed time

Total elapsed time after a diagnosis code is 
generated

min

4

Accumulated minute

Cumulative time for current malfunction of 
diagnosis code

min

CHART CLASSIFIED BY DIAGNOSIS 
CODES

M1541100400247

CAUTION

During diagnosis, a diagnosis code associated with other system may be set when the ignition switch 
is turned on with connector(s) disconnected. On completion, confirm all systems for diagnosis 
code(s). If diagnosis code(s) are set, erase them all.

MB992006

Extra fine probe

Continuity check and voltage 
measurement at harness wire or 
connector

Tool

Number

Name

Use

Code No.

Diagnosis contents

Reference page

B1731

Engine ECU authentication timeout

P.54A-24

B1A24

Key ID not registered

P.54A-25

B1A25

Key ID unmatched

P.54A-25

B1A28

Engine

−ECU authentication error

P.54A-26

B1A35

Transponder read error

P.54A-27

IMMOBILIZER SYSTEM <Vehicles without keyless operation system>

CHASSIS ELECTRICAL

54A-24

DIAGNOSIS CODE PROCEDURES

Code No.B1731 Engine ECU authentication timeout

CAUTION

• When the diagnosis code No. B1731 is set, be 

sure to diagnose the CAN bus line.

• When replacing the ECU, always check that 

the communication circuit is normal.

DIAGNOSIS FUNCTION

ETACS-ECU checks if the data from the engine-ECU 
is received via the CAN bus line. When ETACS-ECU 
cannot receive the engine-ECU data, it sets the diag-
nosis code No. B1731.

JUDGEMENT CRITERIA

ETACS-ECU determines that the abnormality is 
present, if it cannot receive the data from the 
engine-ECU via the CAN bus line when the ignition 
switch is turned ON.

PROBABLE CAUSES

• Malfunction of CAN bus line

• Damaged wiring harness and connectors

• Malfunction of Engine-ECU

• Malfunction of ETACS-ECU

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics
Use M.U.T.-III to diagnose the CAN bus lines.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Repair the CAN bus line (Refer to GROUP 
54C 

− Troubleshooting ). On completion, go 

to Step 2.

STEP 2. M.U.T.-III other system diagnosis code
Check whether an engine-related diagnosis code is 
set.

Q: Is the diagnosis code set?

YES : 

Perform troubleshooting for the engine 

(Refer to GROUP 13A 

− Troubleshooting ).

NO : 

Go to Step 3.

STEP 3. M.U.T.-III other system diagnosis code
Check if diagnosis code No.U0100 is set to 
ETACS-ECU.

Q: Is the diagnosis code set?

YES : 

Go to Step 5.

NO : 

Go to Step 4.

STEP 4. Check whether the diagnosis code is 
reset.
Recheck if the diagnosis code is set to ETACS-ECU.
(1) Turn the ignition switch from the LOCK (OFF) 

position to the ON position.

(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.54A-33

).

NO : 

Intermittent malfunction is suspected (Refer 
to GROUP 00 

− How to Use 

Troubleshooting/Inspection Service Points 

− 

How to Cope with Intermittent Malfunction ).

STEP 5. Check whether the diagnosis code is 
reset.
Recheck if the diagnosis code is set to ETACS-ECU.
(1) Turn the ignition switch from the LOCK (OFF) 

position to the ON position.

(2) Check if the diagnosis code is set.

Q: Is the diagnosis code set?

YES : 

Replace the engine-ECU and register the 

chassis number and key codes [Refer to 
GROUP 00 

− How to Perform Chassis 

Number (Chassis No.) Writing ].

NO : 

The diagnosis is complete.

B2352

Antenna fail

P.54A-28

Code No.

Diagnosis contents

Reference page