Mitsubishi Evolution X. Manual — part 1122
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-123
STEP 2. Check the wiring harness between joint connector
(CAN3) C-127 and joint connector (CAN4) A-14 for open
circuit.
CAUTION
Strictly observe the specified wiring harness repair proce-
dure. For details refer to
(1) Disconnect joint connector (CAN3) C-127 and joint
connector (CAN4) A-14, and check the wiring harness.
(2) Check the wiring harness between joint connector (CAN3)
C-127 (terminal 3) and joint connector (CAN4) A-14
(terminal 5)
OK: Continuity exists (2
Ω or less)
(3) Check the wiring harness between joint connector (CAN3)
C-127 (terminal 14) and joint connector (CAN4) A-14
(terminal 16)
OK: Continuity exists (2
Ω or less)
Q: Is the wiring harness between joint connector (CAN3)
C-127 and joint connector (CAN4) A-14 in good
condition?
YES : The trouble can be an intermittent malfunction (Refer
to GROUP 00, How to use
Troubleshooting/inspection Service Points
− How to
Cope with Intermittent Malfunction
NO : Repair the wiring harness between joint connector
(CAN3) C-127 and joint connector (CAN4) A-14.
AC709707BT
TEST
HARNESS
Harness side: A-14
TEST
HARNESS
Harness side: C-127
AC709707BU
Harness side: A-14
Harness side: C-127
TEST HARNESS
TEST
HARNESS
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-124
DIAGNOSTIC ITEM 15: Diagnose when the scan tool cannot receive the data sent by KOS-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.
CAN-B Communication Circuit
ETACS-ECU
INTERFACE
CIRCUIT
CAN DRIVE
CIRCUIT
A/C-ECU
COMBINATION
METER
SRS-ECU
WIRELESS
CONTROL
MODULE
KOS-ECU
NOTE
VEHICLES WITH WCM
VEHICLES WITH KOS
CAN DRIVE
CIRCUIT
CAN DRIVE
CIRCUIT
CAN DRIVE
CIRCUIT
JOINT CONNECTOR
(CAN1)
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-125
.
FUNCTION
If the scan tool MB991958 cannot communicate with
the KOS-ECU, this diagnosis result will be set.
.
TROUBLE JUDGEMENT 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-105 and
KOS-ECU connector C-05 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-105 and KOS-ECU
connector C-05 in good condition?
YES : Go to Step 2.
NO : Repair the damaged parts.
AC708950BZ
C-05
C-105
Connectors: C-05, C-105
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-126
STEP 2. Check the wiring harness between joint connector
(CAN1) C-105 and KOS-ECU connector C-05 for open
circuit.
CAUTION
Strictly observe the specified wiring harness repair proce-
dure. For details refer to
(1) Disconnect joint connector (CAN1) C-105 and KOS-ECU
connector C-05, and check the wiring harness.
(2) Check the wiring harness between joint connector (CAN1)
C-105 (terminal 9) and KOS-ECU connector C-05 (terminal
1)
OK: Continuity exists (2
Ω or less)
(3) Check the wiring harness between joint connector (CAN1)
C-105 (terminal 22) and KOS-ECU connector C-05
(terminal 2)
OK: Continuity exists (2
Ω or less)
Q: Is the wiring harness between joint connector (CAN1)
C-105 and KOS-ECU connector C-05 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-105 and KOS-ECU connector C-05.
AC709707
AC709707 BV
TEST HARNESS
Harness side: C-105
TEST HARNESS
Harness side: C-05
AC709707 BW
Harness side: C-105
TEST HARNESS
Harness side: C-05
TEST
HARNESS
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст