Mitsubishi Outlander GS45X. Manual — part 1291
DIAGNOSIS
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CONTROLLER AREA NETWORK (CAN)
54C-109
STEP 2. Check the wiring harness between joint connector
(CAN1) C-103 and combination meter connector C-03 for
open circuit.
CAUTION
Strictly observe the specified wiring harness repair proce-
dure. For details refer to
(1) Disconnect joint connector (CAN1) C-103 and combination
meter connector C-03, and check the wiring harness.
(2) Check the wiring harness between joint connector (CAN1)
C-103 (terminal No.4) and combination meter connector
C-03 (terminal No.14)
OK: Continuity exists (2 ohms or less)
(3) Check the wiring harness between joint connector (CAN1)
C-103 (terminal No.15) and combination meter connector
C-03 (terminal No.15)
OK: Continuity exists (2 ohms or less)
Q: Is the wiring harness between joint connector (CAN1)
C-103 and combination meter connector C-03 in good
condition?
YES : Check the power supply circuit of the combination
meter. Refer to GROUP 54A, Combination meter
−
.
NO : Repair the wiring harness between joint connector
(CAN1) C-103 and combination meter connector
C-03.
AC709707
AC709707 NU
Harness side: C-103
Harness side: C-03
Test harness
Test harness
AC709707NV
Harness side: C-103
Harness side: C-03
Test harness
Test
harness
DIAGNOSIS
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CONTROLLER AREA NETWORK (CAN)
54C-110
DIAGNOSTIC ITEM 16: Diagnose when the scan tool cannot receive the data sent by KOS-ECU
<vehicles with KOS>.
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 con-
nected to the CAN bus line may be damaged.
CAN Communication Circuit
ETACS-ECU
INTERFACE
CIRCUIT
CAN DRIVE
CIRCUIT
A/C-ECU
COMBINATION METER
CPU
SRS-ECU
WCM
KOS-ECU
NOTE
VEHICLES WITH WCM
VEHICLES WITH KOS
CAN
TRANSCEIVER
CIRCUIT
CAN DRIVE
CIRCUIT
CAN DRIVE
CIRCUIT
JOINT CONNECTOR
(CAN1)
DIAGNOSIS
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CONTROLLER AREA NETWORK (CAN)
54C-111
.
FUNCTION
If the scan tool MB991958 cannot communicate with
the KOS-ECU, this diagnosis result will be set.
.
TROUBLE JUDGMENT CONDITIONS
If a communication flag is not set for the KOS-ECU,
the ETACS-ECU determines that there is a failure.
.
TROUBLESHOOTING HINTS
• Malfunction of the connector [joint connector
(CAN1), KOS-ECU connector improperly con-
nected]
• Malfunction of the wiring harness [open circuit
between the KOS-ECU connector and the joint
connector (CAN1), power supply circuit to the
KOS-ECU]
• Malfunction of the KOS-ECU
DIAGNOSIS
Required Special Tools:
• MB991223: Harness Set
• MB992006: Extra Fine Probe
STEP 1. Check joint connector (CAN1) C-103 and
KOS-ECU connector C-102 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 joint connector (CAN1) C-103 and KOS-ECU
connector C-102 in good condition?
YES : Go to Step 2.
NO : Repair the damaged parts.
AC901075AV
Connectors: C-102, C-103
C-102
C-103
DIAGNOSIS
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CONTROLLER AREA NETWORK (CAN)
54C-112
STEP 2. Check the wiring harness between joint connector
(CAN1) C-103 and KOS-ECU connector C-102 for open
circuit.
CAUTION
Strictly observe the specified wiring harness repair proce-
dure. For details refer to
(1) Disconnect joint connector (CAN1) C-103 and KOS-ECU
connector C-102, and check the wiring harness.
(2) Check the wiring harness between joint connector (CAN1)
C-103 (terminal No.8) and KOS-ECU connector C-102
(terminal No.1)
OK: Continuity exists (2 ohms or less)
(3) Check the wiring harness between joint connector (CAN1)
C-103 (terminal No.21) and KOS-ECU connector C-102
(terminal No.2)
OK: Continuity exists (2 ohms or less)
Q: Is the wiring harness between joint connector (CAN1)
C-103 and KOS-ECU connector C-102 in good
condition?
YES : Check the power supply circuit of the KOS-ECU.
Refer to GROUP 42B, KOS-ECU
− Diagnosis
.
NO : Repair the wiring harness between joint connector
(CAN1) C-103 and KOS-ECU connector C-102.
AC709707 LY
Harness side: C-103
Harness side: C-102
Test harness
Test harness
AC709707 LZ
Harness side: C-103
Harness side: C-102
Test harness
Test
harness
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