Mitsubishi Outlander GS45X. Manual — part 1268

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-17

CAUTION

To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
1. Connect scan tool MB991958 to the data link connector.
2. Turn the ignition switch to the "ON" position.
3. Select "CAN Bus Diagnosis" from the start-up screen.
4. When the vehicle information is displayed, confirm that it

matches the vehicle whose CAN bus lines will be
diagnosed.

• If they match, go to Step 8.

• If not, go to Step 5.

5. Select the "view vehicle information" button.
6. Enter the vehicle information and select the "OK" button.
7. When the vehicle information is displayed, confirm again

that it matches the vehicle whose CAN bus lines will be
diagnosed.

• If they match, go to Step 8.

• If not, go to Step 5.

8. Select the "OK" button.
9. When the optional equipment screen is displayed, choose

the one which the vehicle is fitted with, and then select the
"OK" button.

DIAGNOSIS

CAN BUS DIAGNOSTICS TABLE

M1548300202374

CAUTION

A diagnostic trouble code may not also be set in
the CAN-B lines under the conditions below. If no
diagnostic trouble code has been set due to elec-
trical noise, confirm diagnostic item 26

P.54C-171

.

• Open circuit at the CAN_H side of the CAN-B

bus lines

• Open circuit at the CAN_L side of the CAN-B

bus line

• Short to ground at the CAN_H side of the

CAN-B bus line

CAUTION

During diagnosis, a diagnostic trouble code
associated with another system may be set when
the ignition switch is turned on with connector(s)
disconnected. After completing the repair, con-
firm all systems for diagnostic trouble code(s). If
diagnostic trouble code(s) are set, erase them all.
This diagnosis applies only to the CAN bus lines. If a
different system is defective, proceed to the applica-
ble diagnosis section for each system. Observe the

diagnostic procedure below only when the CAN bus
line is defective.

ZC501967

AC404789

AC702802

MB991824

MB991827

MB991910

Data link

connector

AB

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-18

Scan tool screen

Diagnosis detail

Reference
page

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

Comment

Short circuit to
battery in red
displayed area is
estimated.

Diagnostic item 1
Diagnose when the
scan tool cannot
receive the data sent
by ETACS-ECU

P.54C-27

Grounding in red
displayed area is
estimated.

Diagnostic item 2
Malfunction of the
ETACS-ECU

P.54C-33

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

Diagnostic item 3
Abnormal short
between the CAN-C
bus lines

P.54C-34

CAN-C:
Grounding in red
displayed area is
estimated

Diagnostic item 4
Diagnose shorts in the
ground to CAN-C bus
line

P.54C-47

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

Diagnostic item 5
Diagnose shorts in the
power supply to
CAN-C bus line

P.54C-63

ACA02828AB

: Red section on screen

M.U.T.

JC

JC

SAS

AWC

SRS

OCM

A/C

AUDIO

MMCS

Sat Radio

METER

ABS/ASC

AT/CVT

ENGINE

ETACS

JC

F.A.S.T
/WCM

ACA02828AD

: Red section on screen

M.U.T.

JC

JC

SAS

AWC

SRS

OCM

A/C

AUDIO

MMCS

Sat Radio

METER

ABS/ASC

AT/CVT

ENGINE

ETACS

JC

F.A.S.T
/WCM

ACA02828AE

: Red section on screen

M.U.T.

SRS

OCM

A/C

AUDIO

MMCS

Sat Radio

METER

JC

F.A.S.T
/WCM

JC

ETACS

SAS

AWC

JC

ABS/ASC

AT/CVT

ENGINE

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-19

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

Diagnostic item 6
Diagnose when the
scan tool cannot
receive the data sent
by AWD-ECU
<Electric controled
AWD>

P.54C-79

Diagnostic item 7
Diagnose when the
scan tool cannot
receive the data sent
by AWC-ECU
<S-AWC>

P.54C-82

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

Diagnostic item 8
Diagnose when the
scan tool cannot
receive the data sent
by steering wheel
sensor <Vehicles with
ASC>

P.54C-85

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

Diagnostic item 9
Diagnose when the
scan tool cannot
receive the data sent
by TCM <CVT, A/T>

P.54C-88

Scan tool screen

Diagnosis detail

Reference
page

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

Comment

ACA02828AL

: Red section on screen

M.U.T.

JC

SAS

AWC

JC

ABS/ASC

AT/CVT

ENGINE

ETACS

JC

SRS

OCM

A/C

AUDIO

MMCS

Sat Radio

METER

F.A.S.T
/WCM

ACA02828AG

: Red section on screen

M.U.T.

SRS

OCM

A/C

AUDIO

MMCS

Sat Radio

METER

JC

F.A.S.T
/WCM

JC

ETACS

SAS

AWC

JC

ABS/ASC

AT/CVT

ENGINE

ACA02828AL

: Red section on screen

M.U.T.

JC

SAS

AWC

JC

ABS/ASC

AT/CVT

ENGINE

ETACS

JC

SRS

OCM

A/C

AUDIO

MMCS

Sat Radio

METER

F.A.S.T
/WCM

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-20

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

Diagnostic item 10
Diagnose when the
scan tool cannot
receive the data sent
by ABS-ECU
<Vehicles without
ASC>

P.54C-91

Diagnostic item 11
Diagnose when the
scan tool cannot
receive the data sent
by ASC-ECU
<Vehicles with ASC>

P.54C-94

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

Diagnostic item 12
Diagnose when the
scan tool cannot
receive the data sent
by ECM

P.54C-97

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

Diagnostic item 13
Diagnose the lines
between the
ETACS-ECU and joint
connector (CAN2)

P.54C-100

Scan tool screen

Diagnosis detail

Reference
page

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

Comment

ACA02828AI

: Red section on screen

M.U.T.

SRS

OCM

A/C

AUDIO

MMCS

Sat Radio

METER

JC

F.A.S.T
/WCM

JC

ETACS

SAS

AWC

JC

ABS/ASC

AT/CVT

ENGINE

ACA02828AJ

: Red section on screen

M.U.T.

SRS

OCM

A/C

AUDIO

MMCS

Sat Radio

METER

JC

F.A.S.T
/WCM

JC

ETACS

SAS

AWC

JC

ABS/ASC

AT/CVT

ENGINE

ACA02828AE

: Red section on screen

M.U.T.

SRS

OCM

A/C

AUDIO

MMCS

Sat Radio

METER

JC

F.A.S.T
/WCM

JC

ETACS

SAS

AWC

JC

ABS/ASC

AT/CVT

ENGINE