Mitsubishi Outlander (2003+). Manual — part 404

IGNITION SWITCH

CHASSIS ELECTRICAL

54A-11

STEP 4. Connector check: Immobilizer-ECU
connector C-304-1.

Q: Are immobilizer-ECU connector C-304-1 in good

condition?

YES :

Replace immobilizer-ECU and Then

register the password (secret cod) and
encrypted code. Retest the system.

NO :

Repair or replace the damage
component(s).

Code No.12: Encrypted Codes are Not identical or not Registered

DIAGNOSIS CODE SET CONDITION
The encrypted code sent by the transponder is not
the same encrypted code which is registered in the
immobilizer-ECU.
NOTE: Diagnosis code No.12 is always output
together with MPI system diagnosis code No.P1610.

TROUBLESHOOTING HINTS

•

The encrypted code in the ignition key has not
been properly registered

•

Malfunction of immobilizer-ECU.

DIAGNOSIS PROCEDURE

Was the encrypted code registered?

YES :

Replace the immobilizer-ECU and then

re-register the encrypted code (Refer to

P.54A-24

).

NO :

Register the encrypted code (Refer to

P.54A-24

).

SYMPTOM CHART

M1543007201150

AC211664AC

C-304-1

Connector: C-304-1 <LHD>

Harness side

1

2

3

4

AC309267AB

C-304-1

Connector: C-304-1 <RHD>

Harness side

Symptom

Inspection
procedure No.

Reference page

Communication with MUT-II/III is impossible

1

P.54A-12

The ignition key cannot be registered

2

P.54A-22

Engine cranks but does not start

3

P.54A-23

IGNITION SWITCH

CHASSIS ELECTRICAL

54A-12

SYMPTOM PROCEDURES

INSPECTION PROCEDURE 1: Communication with MUT-II/III is Impossible.

ENGINE
CONTROL RELAY

POWER
SOURCE

SIGNAL
TRANSMISSION
CIRCUIT

IMMOBILIZER-
ECU

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

ENGINE-ECU

Immobilizer-ECU Power Source, Earth and Engine-ECU
Communication Line Circuit <2000>

IGNITION SWITCH

CHASSIS ELECTRICAL

54A-13

TECHNICAL DESCRIPTION (COMMENT)

•

This malfunction may be caused by a defective
immobilizer-ECU, engine-ECU <M/T> or
engine-A/T-ECU <A/T>, or a defect in the
communication line between the
immobilizer-ECU and engine-ECU <M/T> or
engine-A/T-ECU <A/T>. If this malfunction
appears when the MPI system and MUT-II/III can
communicate each other, MPI system diagnosis
code No.P1610 <2000> or P0513 <2400> will
reset.

•

If the MPI system is normal, the engine control
relay can be determined as normal. In addition, if
the MPI system and MUT-II/III can communicate
each other, the circuits between the diagnosis
connector and the engine-ECU <M/T> or
engine-A/T-ECU <A/T> can determined as
normal.

NOTE: If this malfunction appears, MPI system

diagnosis code No.P1610 <2000> or P0513
<2400> will be output.

TROUBLESHOOTING HINTS

•

Malfunction of the immobilizer-ECU

•

Malfunction of the engine-ECU <M/T> or
engine-A/T-ECU <A/T>

•

The wiring harness or connectors may have
loose, corroded, or damaged terminals, or
terminals pushed back in the connector

NOTE

: LHD
: RHD

ENGINE
CONTROL RELAY

POWER
SOURCE

SIGNAL
TRANSMISSION
CIRCUIT

IMMOBILIZER-
ECU

ENGINE-ECU OR
ENGINE-A/T-ECU

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

Immobilizer-ECU Power Source, Earth and Engine-ECU or
Engine-A/T-ECU Communication Line Circuit <2400>

IGNITION SWITCH

CHASSIS ELECTRICAL

54A-14

DIAGNOSIS PROCEDURE

STEP 1. Using the MUT-II/III, read the MPI system
diagnosis code.

CAUTION

To prevent damage to the MUT-II/III, always turn
the ignition switch to "LOCK" (OFF) position
before connecting or disconnecting the MUT-II/III.
Use the MUT-II/III to confirm the MPI system DTC.

(1) Connect the MUT-II/III to the diagnosis connector.
(2) Turn the ignition switch "ON" to position.
(3) Read the MPI system diagnosis code.

NOTE: If the MUT-II/III cannot communicate with
the MPI system, refer to GROUP 13A, MPI
Troubleshooting

−

Symptom Procedures

P.13A-190

or GROUP 13B, MPI Troubleshooting

−

Symptom Procedures

P.13B-285

.

Q: Is an MPI system DTC P1610 <2000> or P0513

<2400> output?

YES :

Refer to GROUP 13A, MPI Troubleshooting

−

Inspection Chart

P.13A-183

or GROUP

13B, MPI Troubleshooting

−

Inspection

Chart

P.13B-205

.

NO :

Go to Step 2.

STEP 2. Voltage measurement at
immobilizer-ECU connector C-304-1.

(1) Disconnect immobilizer-ECU connector C-304-1.
(2) Turn the ignition switch to the "ON" position.

(3) Measure the voltage between terminal 1 and

earth.

OK: System voltage

Q: Is the check result normal?

YES :

Go to Step 5.

NO :

Go to Step 3.

AC300830

Steering shaft

MUT-II

AC

<Using the MUT-II>

AC308915 AC

MB991911

16-PIN

MB991827

MB991824

<Using the MUT-III>

AC211664AC

C-304-1

Connector: C-304-1 <LHD>

Harness side

1

2

3

4

AC309267AB

C-304-1

Connector: C-304-1 <RHD>

Harness side

AC212142

C-304-1 Harness connector:
Component side

AB