Mitsubishi Lancer (4A9 engine). Manual — part 248

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-16

M.U.T.-III screen

Diagnosis detail

Reference
page

(The ECUs that are not adopted are not
displayed).

Comment

ACB01903

M.U.T.

JC

JC

SAS

KOS

/WCM

SRS

A/C

AUDIO

METER

ABS

/ASC

AS&G

EPS

AT

/CVT

AB

MMCS

ENGINE

JC

: Red section on screen

ETACS

Cor ner

Levelling

Trouble is suspected
in the section
displayed in red.

Diagnosis Item 1
Diagnose when the
M.U.T.-III cannot
receive the data sent
by ETACS-ECU

ACB01903

M.U.T.

JC

JC

SAS

KOS

/WCM

SRS

A/C

AUDIO

METER

ABS

/ASC

AS&G

EPS

AT

/CVT

AC

MMCS

ENGINE

JC

: Red section on screen

ETACS

Cor ner

Levelling

Trouble is suspected
in the section
displayed in red.

Diagnosis Item 2
Malfunction of the
ETACS-ECU

ACB01903

M.U.T.

JC

KOS

/WCM

SRS

A/C

AUDIO

METER

AD

MMCS

: Red section on screen

SAS

ABS

/ASC

AS&G

EPS

ENGINE

JC

ETACS

AT

/CVT

JC

Cor ner

Levelling

CAN-C: A bus-off
failure is present in
the gateway ECU.

Diagnosis Item 3
Abnormal short
between the CAN-C
bus lines

CAN-C: Earthing in
red displayed area is
estimated

Diagnosis Item 4
Diagnose shorts in the
earth to CAN-C bus
line

CAN-C: Short circuit
to battery in red
displayed area is
estimated

Diagnosis Item 5
Diagnose shorts in the
power supply to CAN-
C bus line

ACB01903

M.U.T.

JC

KOS

/WCM

SRS

A/C

AUDIO

METER

AE

MMCS

: Red section on screen

SAS

ABS

/ASC

AS&G

EPS

ENGINE

JC

ETACS

AT

/CVT

JC

Cor ner

Levelling

CAN-C:
Disconnection in red
displayed area is
estimated.

Diagnosis Item 6
Diagnose when the
M.U.T.-III cannot
receive the data sent
by steering wheel
sensor <vehicles with
ASC or AFS>

ACB01903

M.U.T.

JC

KOS

/WCM

SRS

A/C

AUDIO

METER

AG

MMCS

: Red section on screen

SAS

ABS

/ASC

AS&G

EPS

ENGINE

JC

ETACS

AT

/CVT

JC

Cor ner

Levelling

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-17

CAN-C:
Disconnection in red
displayed area is
estimated.

Diagnosis Item 7
Diagnose when the
M.U.T.-III cannot
receive the data sent
by corner sensor/back
sensor-ECU <Vehicles
with reversing sensor
system>

ACB01903

M.U.T.

JC

KOS

/WCM

SRS

A/C

AUDIO

METER

AH

MMCS

: Red section on screen

SAS

ABS

/ASC

AS&G

EPS

ENGINE

JC

ETACS

AT

/CVT

JC

Cor ner

Levelling

CAN-C:
Disconnection in red
displayed area is
estimated.

Diagnosis Item 8
Diagnose when the
M.U.T.-III cannot
receive the data sent
by ABS-ECU
<vehicles without
ASC> or ASC-ECU
<vehicles with ASC>

ACB01903

M.U.T.

JC

KOS

/WCM

SRS

A/C

AUDIO

METER

AI

MMCS

: Red section on screen

SAS

ABS

/ASC

AS&G

EPS

ENGINE

JC

ETACS

AT

/CVT

JC

Cor ner

Levelling

CAN-C:
Disconnection in red
displayed area is
estimated.

Diagnosis Item 9
Diagnose when the
M.U.T.-III cannot
receive the data sent
by headlamp
automatic levelling-
ECU <vehicles with
AFS>

ACB01903

M.U.T.

JC

KOS

/WCM

SRS

A/C

AUDIO

METER

AJ

MMCS

: Red section on screen

SAS

ABS

/ASC

AS&G

EPS

ENGINE

JC

ETACS

AT

/CVT

JC

Cor ner

Levelling

CAN-C:
Disconnection in red
displayed area is
estimated.

Diagnosis Item 10
Diagnose when the
M.U.T.-III cannot
receive the data sent
by electric power
steering-ECU
<vehicles with electric
power steering)>

M.U.T.-III screen

Diagnosis detail

Reference
page

(The ECUs that are not adopted are not
displayed).

Comment

ACB01903

M.U.T.

JC

KOS

/WCM

SRS

A/C

AUDIO

METER

AK

MMCS

: Red section on screen

SAS

ABS

/ASC

AS&G

EPS

ENGINE

JC

ETACS

AT

/CVT

JC

Cor ner

Levelling

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-18

CAN-C:
Disconnection in red
displayed area is
estimated.

Diagnosis Item 11
Diagnose when the
M.U.T.-III cannot
receive the data sent
by A/T-ECU <A/T> or
CVT-ECU <CVT>

ACB01903

M.U.T.

JC

KOS

/WCM

SRS

A/C

AUDIO

METER

AL

MMCS

: Red section on screen

SAS

ABS

/ASC

AS&G

EPS

ENGINE

JC

ETACS

AT

/CVT

JC

Cor ner

Levelling

CAN-C:
Disconnection in red
displayed area is
estimated.

Diagnosis Item 12
Diagnose when the
M.U.T.-III cannot
receive the data sent
by engine-ECU

ACB01903

M.U.T.

JC

KOS

/WCM

SRS

A/C

AUDIO

METER

AD

MMCS

: Red section on screen

SAS

ABS

/ASC

AS&G

EPS

ENGINE

JC

ETACS

AT

/CVT

JC

Cor ner

Levelling

CAN-C:
Disconnection in red
displayed area is
estimated.

Diagnosis Item 13
Diagnose the lines
between the ETACS-
ECU and joint
connector (CAN2)

ACB01903

M.U.T.

JC

KOS

/WCM

SRS

A/C

AUDIO

METER

AM

MMCS

: Red section on screen

SAS

ABS

/ASC

AS&G

EPS

ENGINE

JC

ETACS

AT

/CVT

JC

Cor ner

Levelling

CAN-C:
Disconnection in red
displayed area is
estimated.

Diagnosis Item 14
Diagnose the lines
between joint
connector (CAN2) and
joint connector (CAN3)

M.U.T.-III screen

Diagnosis detail

Reference
page

(The ECUs that are not adopted are not
displayed).

Comment

ACB01903

M.U.T.

AO

: Red section on screen

JC

SAS

ABS

/ASC

AS&G

EPS

ENGINE

JC

AT

/CVT

JC

SRS

A/C

AUDIO

MMCS

METER

ETACS

Cor ner

Levelling

KOS

/WCM

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-19

CAN-B:
Disconnection in red
displayed area is
estimated.

Diagnosis Item 15
Diagnose when the
M.U.T.-III cannot
receive the data sent
by KOS-ECU
<vehicles with KOS>

Diagnosis Item 16
Diagnose when the
M.U.T.-III cannot
receive the data sent
by WCM <vehicles
without KOS>

ACB01903

M.U.T.

AP

: Red section on screen

JC

SAS

ABS

/ASC

AS&G

EPS

ENGINE

JC

AT

/CVT

JC

SRS

A/C

AUDIO

MMCS

METER

ETACS

Cor ner

Levelling

KOS

/WCM

CAN-B:
Disconnection in red
displayed area is
estimated.

Diagnosis Item 17
Diagnose when the
M.U.T.-III cannot
receive the data sent
by SRS-ECU

ACB01903

M.U.T.

AQ

: Red section on screen

JC

SAS

ABS

/ASC

AS&G

EPS

ENGINE

JC

AT

/CVT

JC

SRS

A/C

AUDIO

MMCS

METER

ETACS

Cor ner

Levelling

KOS

/WCM

CAN-B:
Disconnection in red
displayed area is
estimated.

Diagnosis Item 18
Diagnose when the
M.U.T.-III cannot
receive the data sent
by heater control unit
<vehicels without A/
C> or A/C-ECU
<vehicels with A/C>

ACB01903

M.U.T.

AR

: Red section on screen

JC

SAS

ABS

/ASC

AS&G

EPS

ENGINE

JC

AT

/CVT

JC

SRS

A/C

AUDIO

MMCS

METER

ETACS

Cor ner

Levelling

KOS

/WCM

CAN-B:
Disconnection in red
displayed area is
estimated.

Diagnosis Item 19
Diagnose when the
M.U.T.-III cannot
receive the data sent
by CAN box unit
<vehicles with MMCS
(vehicles for Russia)>

M.U.T.-III screen

Diagnosis detail

Reference
page

(The ECUs that are not adopted are not
displayed).

Comment