Mitsubishi Evolution X. Manual — part 1119
DIAGNOSIS
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CONTROLLER AREA NETWORK (CAN)
54C-111
STEP 2. Check the wiring harness between joint connector
(CAN4) A-14 and transaxle assembly connector B-107 for
open circuit.
CAUTION
Strictly observe the specified wiring harness repair proce-
dure. For details refer to
(1) Disconnect joint connector (CAN4) A-14 and transaxle
assembly B-107, and check the wiring harness.
(2) Check the wiring harness between joint connector (CAN4)
A-14 (terminal 6) and transaxle assembly connector B-107
(terminal 5)
OK: Continuity exists (2
Ω or less)
(3) Check the wiring harness between joint connector (CAN4)
A-14 (terminal 19) and transaxle assembly connector B-107
(terminal 2)
OK: Continuity exists (2
Ω or less)
Q: Is the wiring harness between joint connector (CAN4)
A-14 and transaxle assembly connector B-107 in good
condition?
YES : Check the power supply circuit of the transaxle
assembly. Refer to GROUP 22C, TC-SST
− Diagnosis
.
NO : Repair the wiring harness between joint connector
(CAN4) A-14 and transaxle assembly connector
B-107.
AC709746
AC709746
Harness side: A-14
AF
Harness side: B-107
TEST
HARNESS
TEST
HARNESS
AC709746
Harness side: A-14
AG
Harness side: B-107
TEST
HARNESS
TEST
HARNESS
DIAGNOSIS
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CONTROLLER AREA NETWORK (CAN)
54C-112
DIAGNOSTIC ITEM 12: Diagnose the lines between the ETACS-ECU and joint connector (CAN2).
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-C Communication Circuit <M/T>
ETACS-ECU
INTERFACE
CIRCUIT
CAN DRIVE
CIRCUIT
JOINT CONNECTOR
(CAN2)
JOINT CONNECTOR
(CAN3)
ASC-ECU
STEERING
WHEEL SENSOR
S-AWC-ECU
ENGINE
CONTROL
MODULE
DIAGNOSIS
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CONTROLLER AREA NETWORK (CAN)
54C-113
TRANSAXLE
ASSEMBLY
ENGINE
CONTROL
MODULE
CAN-C Communication Circuit <TC-SST>
ETACS-ECU
INTERFACE
CIRCUIT
CAN DRIVE
CIRCUIT
JOINT CONNECTOR
(CAN2)
JOINT CONNECTOR
(CAN3)
JOINT CONNECTOR
(CAN4)
SHIFT LEVER
ASC-ECU
STEERING
WHEEL SENSOR
S-AWC-ECU
NOTE
: THE TERMINAL NUMBERS DESCRIBED
IN THE CIRCUIT DIAGRAM AGREE WITH
THE NUMBERS MAKED ON THE
TRANSAXLE ASSEMBLY CONNECTOR AND
HARNESS SIDE CONNECTOR.
DIAGNOSIS
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CONTROLLER AREA NETWORK (CAN)
54C-114
.
FUNCTION
If a failure is present in the wiring harness between
the ETACS-ECU connector and the joint connector
(CAN2), this diagnosis result will be set.
.
TROUBLE JUDGEMENT CONDITIONS
If a communication flag is not set for some of the
ECUs on the CAN-C line, the ETACS-ECU deter-
mines that there is a failure.
.
TROUBLESHOOTING HINTS
• Malfunction of the connector [joint connector
(CAN2) or ETACS-ECU connector improperly
connected]
• Malfunction of the wiring harness [open circuit
between the ETACS-ECU connector and the joint
connector (CAN2), power supply circuit to the
ECM]
• Malfunction of the ETACS-ECU
DIAGNOSIS
Required Special Tools:
• MB991223: Harness Set
• MB992006: Extra Fine Probe
STEP 1. Check joint connector (CAN2) C-104 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 joint connector (CAN2) C-104 and ETACS-ECU
connector C-301 in good condition?
YES : Go to Step 2.
NO : Repair the damaged parts.
AC708950BX
Connector: C-104
AC708972AY
Connector: C-301
ETACS-ECU
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