Mitsubishi Evolution X. Manual — part 1114
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-91
.
FUNCTION
If the scan tool MB991958 cannot communicate with
the S-AWC-ECU, this diagnosis result will be set.
.
TROUBLE JUDGEMENT CONDITIONS
If a communication flag is not set for the
S-AWC-ECU, the ETACS-ECU determines that there
is a failure.
.
TROUBLESHOOTING HINTS
• Malfunction of the connector [joint connector
(CAN2), S-AWC-ECU connector or intermediate
connector failed improperly connected]
• Malfunction of the wiring harness [open circuit
between the S-AWC-ECU and the joint connector
(CAN2), power supply circuit to the S-AWC-ECU]
• Malfunction of the S-AWC-ECU
DIAGNOSIS
Required Special Tools:
• MB991223: Harness Set
• MB992006: Extra Fine Probe
STEP 1. Check joint connector (CAN2) C-104 and
S-AWC-ECU connector C-46 and intermediate connector
C-41 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 S-AWC-ECU
connector C-46 and intermediate connector C-41 in
good condition?
YES : Go to Step 2.
NO : Repair the damaged parts.
AC708950BW
C-41
C-46
C-104
Connectors: C-41, C-46, C-104
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-92
STEP 2. Check the wiring harness between joint connector
(CAN2) C-104 and S-AWC-ECU connector C-46 for open
circuit.
CAUTION
Strictly observe the specified wiring harness repair proce-
dure. For details refer to
(1) Disconnect joint connector (CAN2) C-104 and S-AWC-ECU
connector C-46, and check the wiring harness.
(2) Check the wiring harness between joint connector (CAN2)
C-104 (terminal 5) and S-AWC-ECU connector C-46
(terminal 4)
OK: Continuity exists (2
Ω or less)
(3) Check the wiring harness between joint connector (CAN2)
C-104 (terminal 16) and S-AWC-ECU connector C-46
(terminal 5)
OK: Continuity exists (2
Ω or less)
Q: Is the wiring harness between joint connector (CAN2)
C-104 and S-AWC-ECU connector C-46 in good
condition?
YES : Check the power supply circuit of the S-AWC-ECU.
Refer to GROUP 22A, Troubleshooting
<S-AWC>.
NO : Repair the wiring harness between joint connector
(CAN2) C-104 and S-AWC-ECU connector C-46.
AC709707
AC709707
Harness side: C-104
BH
TEST HARNESS
Harness side: C-46
TEST HARNESS
AC709707
Harness side: C-104
BI
Harness side: C-46
TEST HARNESS
TEST HARNESS
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-93
DIAGNOSTIC ITEM 7: Diagnose when the scan tool cannot receive the data sent by steering wheel
sensor.
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
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-94
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.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст