Mitsubishi Grandis. Manual — part 485

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54D-38

NOTE: If the diagnostic items other than No.19
cannot resolve the trouble, follow diagnostic item 19,
Diagnose CAN bus lines thoroughly.

<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

<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

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 19,
Diagnose CAN bus lines thoroughly.

−

MUT-III SCREEN

DIAGNOSIS DETAILS

REFERENCE
PAGE

AC309837

: Red section

on screen

MUT

J/C (2)

METER

ETACS

J/C (1)

ABS-ECU

ENG/AT-ECU

C. DISPLAY

SRS-ECU

A/C-ECU

AO

AC309837

: Red section

on screen

MUT

J/C (2)

METER

ETACS

J/C (1)

ABS-ECU

ENG/AT-ECU

C. DISPLAY

SRS-ECU

A/C-ECU

AN

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54D-39

RH DRIVE VEHICLES WITH ASC

MUT-III SCREEN

DIAGNOSIS DETAILS

REFERENCE
PAGE

<Comment>
Short circuit to battery in red displayed area is
estimated.

Diagnostic Item 4
Diagnose the CAN bus lines for short to
power supply <RH drive vehicles with
ASC>

P.54D-140

<Comment>
Grounding in red displayed area is
estimated.

Diagnostic Item 8
Diagnose the CAN bus lines for short to
earth <RH drive vehicles with ASC>

P.54D-270

<Comment>
Short circuit between CAN_H and CAN_L in red
displayed area is
estimated.

Diagnostic Item 12
Diagnose the lines between CAN_L and
CAN_H for short circuit <RH drive
vehicles with ASC>

P.54D-378

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

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

AC

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54D-40

<Comment>
Disconnection in red displayed area is
estimated.

Diagnostic Item 14
Diagnose the terminator resistors at
both ends <RH drive vehicles>

P.54D-419

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

AG

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54D-41

<Comment>
Malfunction of terminating resistance is
estimated.

Diagnostic Item 16
Diagnose the terminator resistor at one
end <RH drive vehicles>

P.54D-443

<Comment>
Disconnection, loose connection or terminating
resistance in red displayed area is
estimated.

<Comment>
Disconnection, loose connection or terminating
resistance in red displayed area is
estimated.

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

AH

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

AD

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

AI