Mitsubishi Lancer Evolution X. Manual — part 21
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-109
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
AWC-ECU
NOTE
: THE TERMINAL NUMBERS DESCRIBED
IN THE CIRCUIT DIAGRAM AGREE WITH
THE NUMBERS MARKED ON THE
TRANSAXLE ASSEMBLY CONNECTOR AND
HARNESS SIDE CONNECTOR.
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-110
.
FUNCTION
If the scan tool MB991958 cannot communicate with
the ASC-ECU, this diagnosis result will be set.
.
TROUBLE JUDGMENT CONDITIONS
If a communication flag is not set for the ASC-ECU,
the ETACS-ECU determines that there is a failure.
.
TROUBLESHOOTING HINTS
• Malfunction of the connector [joint connector
(CAN3) or ASC-ECU connector improperly con-
nected]
• Malfunction of the wiring harness [open circuit
between the ASC-ECU and the joint connector
(CAN3), power supply circuit to the ASC-ECU]
• Malfunction of the ASC-ECU
DIAGNOSIS
Required Special Tools:
• MB991223: Harness Set
• MB992006: Extra Fine Probe
• MB991997: ASC Check Harness
STEP 1. Check joint connector (CAN3) C-127 and ASC-ECU
connector A-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 (CAN3) C-127 and ASC-ECU
connector A-05 in good condition?
YES : Go to Step 2.
NO : Repair the damaged parts.
AC708948
Connector: A-05
A-05 (B)
AB
AC708951CC
Connector: C-127
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-111
STEP 2. Check the wiring harness between joint connector
(CAN3) C-127 and ASC-ECU connector A-05 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 ASC-ECU
connector A-05, and check the wiring harness.
(2) Check the wiring harness between joint connector (CAN3)
C-127 (terminal 6) and ASC-ECU connector A-05 (terminal
12)
OK: Continuity exists (2 Ω or less)
(3) Check the wiring harness between joint connector (CAN3)
C-127 (terminal 19) and ASC-ECU connector A-05
(terminal 13)
OK: Continuity exists (2 Ω or less)
Q: Is the wiring harness between joint connector (CAN3)
C-127 and ASC-ECU connector A-05 in good condition?
YES : Check the power supply circuit of the ASC-ECU.
Refer to GROUP 35C, Troubleshooting
NO : Repair the wiring harness between joint connector
(CAN3) C-127 and ASC-ECU connector A-05.
AC709707
Harness side: C-127
BN
Harness side: A-05
TEST
HARNESS
TEST
HARNESS
AC709707
Harness side: C-127
BO
Harness side: A-05
TEST
HARNESS
TEST HARNESS
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-112
DIAGNOSTIC ITEM 10: Diagnose when the scan tool cannot receive the data sent by ECM.
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
AWC-ECU
ENGINE CONTROL
MODULE
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст