Mitsubishi Galant 9G. Manual — part 1231
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-28
<Comment>
Malfunction in red displayed area is estimated.
Please refer to service manual and inspect with
’CAN Detail
Diagnosis’.
Diagnostic Item 16
Diagnose CAN bus lines thoroughly
<Vehicles with ABS and vehicles with
multi-center display (middle-grade
type)>
<Comment>
Harness disconnection or loose connection in red
displayed area is
estimated.
Diagnostic Item 18
Diagnose the lines between CAN main
bus line and the powertrain control
module <Vehicles with ABS>
<Comment>
Harness disconnection or loose connection in red
displayed area is
estimated.
Diagnostic Item 19
Diagnose the lines between CAN main
bus line and the ABS-ECU.
MUT-III SCREEN
DIAGNOSIS DETAILS
REFERENCE
PAGE
AC305792
ETACS
-ECU
AC-ECU
: Red section on screen
PCM
SRS-ECU
METER
-ECU
AB
MUT
J/C
C.DISPLAY
ABS-ECU
AC305792
: Red section on screen
PCM
AG
ETACS
-ECU
AC-ECU
SRS-ECU
C.DISPLAY
MUT
J/C
ABS-ECU
METER
-ECU
AC305792
: Red section on screen
AH
ETACS
-ECU
AC-ECU
SRS-ECU
C.DISPLAY
MUT
J/C
ABS-ECU
METER
-ECU
PCM
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-29
<Comment>
Harness disconnection or loose connection in red
displayed area is
estimated.
Diagnostic Item 20
Diagnose the lines between CAN main
bus line and the ETACS-ECU.
<Comment>
Harness disconnection or loose connection in red
displayed area is
estimated.
Diagnostic Item 21
Diagnose the lines between CAN main
bus line and the multi-center display
(middle-grade type)
MUT-III SCREEN
DIAGNOSIS DETAILS
REFERENCE
PAGE
AC305792
: Red section on screen
AI
ETACS
-ECU
AC-ECU
SRS-ECU
C.DISPLAY
MUT
J/C
METER
-ECU
PCM
ABS-ECU
AC305792
: Red section on screen
AJ
ETACS
-ECU
AC-ECU
SRS-ECU
C.DISPLAY
MUT
J/C
METER
-ECU
PCM
ABS-ECU
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-30
NOTE: If the screen other than above is displayed,
troubles are present at two or more spots. In this
case, diagnose CAN bus lines by referring to the
trouble spot pinpoint procedures.
NOTE: If a trouble cannot be solved after performing
the diagnosis other than item 16, diagnose CAN bus
line thoroughly.
<Comment>
Harness disconnection or loose connection in red
displayed area is
estimated.
Diagnostic Item 22
Diagnose the lines between CAN main
bus line and the A/C-ECU.
<Comment>
Harness disconnection or loose connection in red
displayed area is
estimated.
Diagnostic Item 23
Diagnose the lines between CAN main
bus line and the SRS-ECU.
<Comment>
Harness disconnection or loose connection in red
displayed area is
estimated.
Diagnostic Item 24
Diagnose the lines between CAN main
bus line and the combination meter.
MUT-III SCREEN
DIAGNOSIS DETAILS
REFERENCE
PAGE
AC305792
: Red section on screen
AK
ETACS
-ECU
AC-ECU
SRS-ECU
C.DISPLAY
MUT
J/C
METER
-ECU
PCM
ABS-ECU
AC305792
: Red section on screen
AL
ETACS
-ECU
AC-ECU
SRS-ECU
C.DISPLAY
MUT
J/C
METER
-ECU
PCM
ABS-ECU
AC305792
: Red section on screen
AM
AC-ECU
SRS-ECU
C.DISPLAY
MUT
J/C
METER
-ECU
PCM
ABS-ECU
ETACS
-ECU
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-31
CAN BUS DIAGNOSTICS
DIAGNOSTIC ITEM 1: Diagnose shorts in the power supply to CAN bus line <Vehicles without ABS
and vehicles without multi-center display (middle-grade type)>
CAUTION
When servicing a CAN bus line, ground yourself
by touching a metal object such as an unpainted
water pipe. If you fail to do this, a component
connected to the CAN bus line may be damaged.
DATA LINK
CONNECTOR
ETACS-ECU
POWERTRAIN
CONTROL MODULE
JOINT
CONNECTOR (3)
COMBINATION
METER
A/C-ECU
SRS-ECU
NOTE
: MANUAL AIR CONDITIONING SYSTEM <LOW>
: MANUAL AIR CONDITIONING SYSTEM <MIDDLE>
OR AUTOMATIC AIR CONDITIONING SYSTEM
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