Mitsubishi Grandis. Manual - part 486

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54D-42

<Comment>
Malfunction in red displayed area is estimated. 
Please refer to service manual and inspect with 
’CAN Detail 
Diagnosis’.

Diagnostic Item 20
Diagnose CAN bus lines thoroughly 
<RH drive vehicles with ASC>

P.54D-526

<Comment>
Harness disconnection or loose connection in red 
displayed area is 
estimated.

Diagnostic Item 22
Diagnose the lines between the joint 
connectors (CAN1 and CAN2) <RH 
drive vehicles>

P.54D-557

<Comment>
Harness disconnection or loose connection in red 
displayed area is 
estimated.

Diagnostic Item 23
Diagnose the lines from the main bus 
line to the engine-ECU <M/T> or 
engine-A/T-ECU <A/T>.

P.54D-562

MUT-III SCREEN

DIAGNOSIS DETAILS

REFERENCE 
PAGE

AC309835

 : Red section 

   on screen

MUT

J/C (2)

METER

ETACS

J/C (1)

ASC-ECU

ENG/AT-ECU

C. DISPLAY

A/C-ECU

STR. A.

SNSR

SRS-ECU

AC

AC309835

: Red section 

   on screen

MUT

J/C (2)

METER

ETACS

J/C (1)

ASC-ECU

ENG/AT-ECU

C. DISPLAY

A/C-ECU

STR. A.

SNSR

SRS-ECU

AE

AC309835

: Red section 

  on screen

MUT

J/C (2)

METER

ETACS

J/C (1)

ASC-ECU

ENG/AT-ECU

C. DISPLAY

A/C-ECU

STR. A.

SNSR

SRS-ECU

AJ

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54D-43

<Comment>
Harness disconnection or loose connection in red 
displayed area is 
estimated.

Diagnostic Item 25
Diagnose the lines between CAN main 
bus line and the ASC-ECU <Vehicles 
with ASC>

P.54D-571

<Comment>
Harness disconnection or loose connection in red 
displayed area is 
estimated.

Diagnostic Item 27
Diagnose the lines from the main bus 
line to the combination meter <RH drive 
vehicles>

P.54D-578

<Comment>
Harness disconnection or loose connection in red 
displayed area is 
estimated.

Diagnostic Item 29
Diagnose the lines from the main bus 
line to the centre display <RH drive 
vehicles>

P.54D-586

MUT-III SCREEN

DIAGNOSIS DETAILS

REFERENCE 
PAGE

AC309835

: Red section 

  on screen

MUT

J/C (2)

METER

ETACS

J/C (1)

ASC-ECU

ENG/AT-ECU

C. DISPLAY

A/C-ECU

STR. A.

SNSR

SRS-ECU

AF

AC309835

: Red section 

  on screen

MUT

J/C (2)

METER

ETACS

J/C (1)

ASC-ECU

ENG/AT-ECU

C. DISPLAY

A/C-ECU

STR. A.

SNSR

SRS-ECU

AK

AC309835

: Red section 

  on screen

MUT

J/C (2)

METER

ETACS

J/C (1)

ASC-ECU

ENG/AT-ECU

C. DISPLAY

A/C-ECU

STR. A.

SNSR

SRS-ECU

AO

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54D-44

<Comment>
Harness disconnection or loose connection in red 
displayed area is 
estimated.

Diagnostic Item 31
Diagnose the lines from the main bus 
line to the ETACS-ECU <RH drive 
vehicles>

P.54D-594

<Comment>
Harness disconnection or loose connection in red 
displayed area is 
estimated.

Diagnostic Item 33
Diagnose the lines from the main bus 
line to the A/C-ECU <RH drive vehicles>

P.54D-600

MUT-III SCREEN

DIAGNOSIS DETAILS

REFERENCE 
PAGE

AC309835

: Red section 

  on screen

MUT

J/C (2)

METER

ETACS

J/C (1)

ASC-ECU

ENG/AT-ECU

C. DISPLAY

A/C-ECU

STR. A.

SNSR

SRS-ECU

AL

AC309835

: Red section 

  on screen

MUT

J/C (2)

METER

ETACS

J/C (1)

ASC-ECU

ENG/AT-ECU

C. DISPLAY

A/C-ECU

STR. A.

SNSR

SRS-ECU

AM

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54D-45

NOTE: If the diagnostic items other than No.20 
cannot resolve the trouble, follow diagnostic item 20, 
Diagnose CAN bus lines thoroughly.

<Comment>
Harness disconnection or loose connection in red 
displayed area is 
estimated.

Diagnostic Item 35
Diagnose the lines from the main bus 
line to the SRS-ECU <RH drive 
vehicles>

P.54D-606

<Comment>
Harness disconnection or loose connection in red 
displayed area is 
estimated.

Diagnostic Item 37
Diagnose the lines from the main bus 
line to the steering wheel angle sensor 
<RH drive vehicles>

P.54D-613

If the screen other than above is shown

Troubles are present at two or more 
spots. Diagnose CAN bus lines by 
referring to the trouble spot pinpoint 
procedures. If the trouble still can not be 
resolved, refer to diagnostic item 20, 
Diagnose CAN bus lines thoroughly.

−

MUT-III SCREEN

DIAGNOSIS DETAILS

REFERENCE 
PAGE

AC309835

: Red section 

  on screen

MUT

J/C (2)

METER

ETACS

J/C (1)

ASC-ECU

ENG/AT-ECU

C. DISPLAY

A/C-ECU

STR. A.

SNSR

SRS-ECU

AP

AC309835

: Red section 

  on screen

MUT

J/C (2)

METER

ETACS

J/C (1)

ASC-ECU

ENG/AT-ECU

C. DISPLAY

A/C-ECU

STR. A.

SNSR

SRS-ECU

AN