Mitsubishi Outlander GS45X. Manual — part 1270
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-25
CAN-RELATED CONNECTOR POSITION
M1548304101008
AC901112
Connectors: A-01, A-02
A-01 (B),
A-02 (B)
AD
AC901598
Connector: B-11
AB
B-11 (GR)
AC901075 AL
Connectors: C-01, C-03, C-04, C-29, C-31,
C-33, C-38
C-01
C-03
C-04
C-29
C-31
C-33
C-38
AC901076 AJ
Connectors: C-13, C-16, C-17, C-28
C-13
C-16,
C-17
C-28 (Y)
AC901075AM
Connectors: C-102, C-103, C-125, C-128,
C-138, C-139
C-102
C-103
C-125 (B)
C-128,
C-139
C-138 (BR)
ACA02654
AL
Connectors: C-109, C-111
C-111
C-109 (B)
AC900844AV
Connector: C-209
ACA02655BB
Connector: C-301
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-26
AC901079AX
Connectors: D-34, D-34-2
D-34,
D-34-2
Connector No.
Connector name
A-01
ABS-ECU <Vehicles without
ASC>
A-02
ASC-ECU <Vehicles with ASC>
B-11
Engine control module (ECM)
C-01
Joint connector (CAN3)
C-03
Combination meter
C-04
Joint connector (CAN2)
C-13
CAN box unit <Vehicles with
MMCS>
C-16
Radio and CD player or CD
changer <Vehicles without
MMCS>
C-17
Intermediate connector
(Instrument panel wiring
harness and navigation harness
combination)
C-28
SRS-ECU
C-29
Wireless control module (WCM)
<Vehicles without KOS>
C-31
Intermediate connector
(Instrument panel wiring
harness and floor wiring
harness combination)
C-33
Intermediate connector
(Instrument panel wiring
harness and front wiring
harness combination)
C-38
Transaxle control module
(TCM) <CVT and 6A/T>
C-102
KOS-ECU <Vehicles with KOS>
C-103
Joint connector (CAN1)
C-109
A/C-ECU
C-111
Satellite radio tuner <Vehicles
with satellite radio>
C-125
Data link connector
C-128
AWD-ECU <Electric controled
AWD>
C-138
Intermediate connector (Front
wiring harness and AWD sub
wiring harness combination)
<Electric controled AWD and
S-AWC>
C-139
AWC-ECU <S-AWC>
C-209
Steering wheel sensor
C-301
ETACS-ECU
D-34
Front seat assembly (LH)
D-34-2
Occupant classification-ECU
Connector No.
Connector name
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-27
CAN BUS DIAGNOSTICS
DIAGNOSTIC ITEM 1: Diagnose when the scan tool cannot receive the data sent by ETACS-ECU
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 so, a component connected to the CAN bus line may be damaged.
.
FUNCTION
When the CAN bus diagnosis is carried out, the scan
tool communicates with the ETACS-ECU. If a com-
munication flag is not set for the ETACS-ECU, the
ETACS-ECU will be diagnosed as a communication
error.
.
TROUBLE JUDGMENT CONDITIONS
If a communication flag is not set for the
ETACS-ECU, the Scan Tool determines that there is
a failure.
.
TROUBLESHOOTING HINTS
• Malfunction of the connector (data link connector
or ETACS-ECU connector improperly connected)
• Malfunction of the wiring harness (open circuit,
short to ground, short to power supply between
the data link connector and the ETACS-ECU con-
nector, line-to-line short, or power supply to the
ETACS-ECU)
• Malfunction of ETACS-ECU
CAN Communication Circuit
ETACS-ECU
DATA LINK
CONNECTOR
CAN DRIVE
CIRCUIT
INTERFACE
CIRCUIT
FRONT SIDE
AC702815AP
Connector: C-125
C-125 (B)
ACA02655BB
Connector: C-301
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-28
DIAGNOSIS
Required Special Tools:
• MB991223: Harness Set
• MB992006: Extra Fine Probe
• MB991958: Scan Tool (M.U.T.-III Sub Assembly)
• MB991824: Vehicle Communication Interface (V.C.I.)
• MB991827: M.U.T.-III USB Cable
• MB991910: M.U.T.-III Main Harness A
STEP 1. Check data link connector C-125 and ETACS-ECU
connector C-301 for loose, corroded or damaged
terminals, or terminals pushed back in the connector.
CAUTION
The strand end of the twisted wire should be within 10 cm
(4 inches) from the connector. For details refer to
Q: Are data link connector C-125 and ETACS-ECU
connector C-301 in good condition?
YES : Go to Step 2.
NO : Repair the damaged parts.
STEP 2. Check the wiring harness between data link
connector C-125 and ETACS-ECU connector C-301 for
open circuit.
CAUTION
Strictly observe the specified wiring harness repair proce-
dure. For details refer to
(1) Disconnect the scan tool and ETACS-ECU connector
C-301, and check the wiring harness.
(2) Check the wiring harness between data link connector
C-125 (terminal No.6) and ETACS-ECU connector C-301
(terminal No.5) <CAN_H>
OK: Continuity exists (2 ohms or less)
(3) Check the wiring harness between data link connector
C-125 (terminal No.14) and ETACS-ECU connector C-301
(terminal No.4) <CAN_L>
OK: Continuity exists (2 ohms or less)
Q: Is the wiring harness between data link connector C-125
and ETACS-ECU connector C-301 in good condition?
YES : Go to Step 3.
NO : Repair the wiring harness between data link
connector C-125 and ETACS-ECU connector C-301.
AC709707
Test
harness
Harness side: C-125
LU
Test harness
Harness side: C-301
AC709707
Harness side: C-34
JD
Test harness
Harness side: C-301
Test
harness
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