Mitsubishi Evolution X. Manual — part 1115
DIAGNOSIS
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CONTROLLER AREA NETWORK (CAN)
54C-95
.
FUNCTION
If the scan tool MB991958 cannot communicate with
the steering wheel sensor, this diagnosis result will
be set.
.
TROUBLE JUDGEMENT CONDITIONS
If a communication flag is not set for the steering
wheel sensor, the ETACS-ECU determines that there
is a failure.
.
TROUBLESHOOTING HINTS
• Malfunction of the connector [joint connector
(CAN2) or steering wheel sensor connector
improperly connected]
• Malfunction of the wiring harness [open circuit
between the steering wheel sensor and the joint
connector (CAN2), power supply circuit to the
steering wheel sensor]
• Malfunction of the steering wheel sensor
DIAGNOSIS
Required Special Tools:
• MB991223: Harness Set
• MB992006: Extra Fine Probe
STEP 1. Check joint connector (CAN2) C-104 and steering
wheel sensor connector C-209 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 steering wheel
sensor connector C-209 in good condition?
YES : Go to Step 2.
NO : Repair the damaged parts.
AC708950BX
Connector: C-104
AC708953AH
Connector: C-209
DIAGNOSIS
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CONTROLLER AREA NETWORK (CAN)
54C-96
STEP 2. Check the wiring harness between joint connector
(CAN2) C-104 and steering wheel sensor connector C-209
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 steering
wheel sensor connector C-209, and check the wiring
harness.
(2) Check the wiring harness between joint connector (CAN2)
C-104 (terminal 7) and steering wheel sensor connector
C-209 (terminal 3)
OK: Continuity exists (2
Ω or less)
(3) Check the wiring harness between joint connector (CAN2)
C-104 (terminal 20) and steering wheel sensor connector
C-209 (terminal 4)
OK: Continuity exists (2
Ω or less)
Q: Is the wiring harness between joint connector (CAN2)
C-104 and steering wheel sensor connector C-209 in
good condition?
YES : Check the power supply circuit of the steering wheel
sensor. Refer to GROUP 35C, Troubleshooting
.
NO : Repair the wiring harness between joint connector
(CAN2) C-104 and steering wheel sensor connector
C-209.
AC709707
AC709707
Harness side: C-104
BJ
Harness side: C-209
TEST
HARNESS
TEST HARNESS
AC709707
Harness side: C-104
BK
Harness side: C-209
TEST
HARNESS
TEST
HARNESS
DIAGNOSIS
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CONTROLLER AREA NETWORK (CAN)
54C-97
DIAGNOSTIC ITEM 8: Diagnose when the scan tool cannot receive the data sent by shift lever.
<TC-SST>
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.
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
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-98
.
FUNCTION
If the scan tool MB991958 cannot communicate with
the shift lever, this diagnosis result will be set.
.
TROUBLE JUDGEMENT CONDITIONS
If a communication flag is not set for the shift lever,
the ETACS-ECU determines that there is a failure.
.
TROUBLESHOOTING HINTS
• Malfunction of the connector [joint connector
(CAN3) or shift lever connector improperly con-
nected]
• Malfunction of the wiring harness [open circuit
between the shift lever and the joint connector
(CAN3), power supply circuit to the shift lever]
• Malfunction of the shift lever
DIAGNOSIS
Required Special Tools:
• MB991223: Harness Set
• MB992006: Extra Fine Probe
STEP 1. Check joint connector (CAN3) C-127 and shift
lever connector C-27 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 shift lever
connector C-27 in good condition?
YES : Go to Step 2.
NO : Repair the damaged parts.
AC708951CB
Connectors: C-27, C-127
C-27
C-127
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