Mitsubishi Evolution X. Manual — part 1151
DIAGNOSIS
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CONTROLLER AREA NETWORK (CAN)
54C-239
STEP 58. Using scan tool MB991958, diagnose the CAN
bus line. (trouble symptom check)
CAUTION
Strictly observe the specified wiring harness repair proce-
dure. For details refer to
CAUTION
To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Diagnose CAN bus lines, and check if the scan tool
MB991958 screen is as shown in the figure.
OK: The display of the scan tool MB991958 is as
shown in the figure.
Q: Does scan tool MB991958 screen correspond to the
illustration?
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 : Check the ETACS-ECU connector C-301, and repair
if necessary. If the ETACS-ECU connector is in good
condition, replace the ETACS-ECU.
AC608435
Data link connector
MB991827
MB991824
MB991910
AB
AC709542 AB
: Red section on screen
M.U.T.
J/C (3)
SAS
J/C (2)
KOS/WCM
SRS
A/C
AUDIO
MMCS
Sat Radio
HFM
OCM
METER
ASC
ENGINE
J/C (1)
ETACS
<M/T>
S-AWC
AC709543 AB
: Red section on screen
M.U.T.
J/C (3)
SAS
J/C (2)
KOS/WCM
SRS
A/C
AUDIO
MMCS
Sat Radio
HFM
OCM
METER
ASC
LEVER
ENGINE
J/C (1)
ETACS
<TC-SST>
S-AWC
TC-SST
J/C (4)
CAN COMMUNICATION-RELATED DTC (U-CODE) TABLE
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CONTROLLER AREA NETWORK (CAN)
54C-240
CAN COMMUNICATION-RELATED DTC (U-CODE) TABLE
M1548300300944
Code
No.
Diagnostic item
Output ECU
Action
U0001
Bus Off (CAN-C)
ECM, S-AWC-ECU, TC-SST-ECU, Shift
lever, ASC-ECU, ETACS-ECU
CAN main bus line
diagnostics
U0019
Bus Off (CAN-B)
KOS-ECU or WCM, SRS-ECU,
Combination meter, Radio and CD
player or CD changer, CAN box unit,
Hands-free module, Satellite radio tuner,
ETACS-ECU, A/C-ECU
U0020
CAN-B Bus off performance
Occupant classification-ECU
U0021
CAN-B Bus (HI) circuit open
U0022
CAN-B Bus (HI) shorted to
circuit ground
U0023
CAN-B Bus (HI) shorted to
circuit power supply
U0024
CAN-B Bus (LO) circuit open
U0025
CAN-B Bus (LO) shorted to
circuit ground
U0026
CAN-B Bus (LO) shorted to
circuit power supply
U0100
Engine time-out
S-AWC-ECU, TC-SST-ECU, Shift lever,
ASC-ECU, Combination meter,
ETACS-ECU
U0101
TC-SST time-out
ECM, S-AWC-ECU, Shift lever,
ASC-ECU, ETACS-ECU
U0103
Shift lever time-out
TC-SST-ECU, ETACS-ECU
U0121
ASC-ECU time-out
ECM, S-AWC-ECU, TC-SST-ECU, Shift
lever, ETACS-ECU
U0125
G and yaw rate sensor message
time-out error/message error
ASC-ECU
U0126
Steering wheel sensor time-out
S-AWC-ECU, ASC-ECU, ETACS-ECU
U0136
S-AWC-ECU time-out
TC-SST-ECU, ASC-ECU, ETACS-ECU
U0141
ETACS-ECU time-out
ECM, S-AWC-ECU, TC-SST-ECU, Shift
lever, ASC-ECU, KOS-ECU or WCM,
SRS-ECU, Occupant classification-ECU,
Combination meter, Radio and CD
player or CD changer, CAN box unit,
Hands-free module, Satellite radio tuner,
A/C-ECU
CAN COMMUNICATION-RELATED DTC (U-CODE) TABLE
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CONTROLLER AREA NETWORK (CAN)
54C-241
U0151
SRS time-out
KOS-ECU or WCM, Occupant
classification-ECU, Combination meter,
Radio and CD player or CD changer,
CAN box unit, Hands-free module,
Satellite radio tuner, ETACS-ECU,
A/C-ECU
CAN main bus line
diagnostics
U0154
Occupant Classification-ECU
time-out
KOS-ECU or WCM, SRS-ECU,
Combination meter, Radio and CD
player or CD changer, CAN box unit,
Hands-free module, Satellite radio tuner,
ETACS-ECU, A/C-ECU
U0155
Meter time-out
KOS-ECU or WCM, SRS-ECU,
Occupant classification-ECU, Radio and
CD player or CD changer, CAN box unit,
Hands-free module, Satellite radio tuner,
ETACS-ECU, A/C-ECU
U0164
A/C time-out
KOS-ECU or WCM, SRS-ECU,
Occupant classification-ECU,
Combination meter, Radio and CD
player or CD changer, CAN box unit,
Hands-free module, Satellite radio tuner,
ETACS-ECU
U0167
CAN immobilizer
(communication)
ECM
U0168
WCM/KOS time-out
SRS-ECU, Occupant classification-ECU,
Combination meter, Radio and CD
player or CD changer, CAN box unit,
Hands-free nodule, Satellite radio tuner,
ETACS-ECU, A/C-ECU
U0184
Audio unit time-out
KOS-ECU or WCM, SRS-ECU,
Occupant classification-ECU,
Combination meter, Hands-free module,
Satellite radio tuner, ETACS-ECU,
A/C-ECU
U0195
Satellite radio tuner time-out
KOS-ECU or WCM, SRS-ECU,
Occupant classification-ECU, Radio and
CD player or CD changer, CAN box unit,
Hands-free module, ETACS-ECU,
A/C-ECU
U0197
Hands free module time-out
KOS-ECU or WCM, SRS-ECU,
Occupant classification-ECU,
Combination meter, Radio and CD
player or CD changer, CAN box unit,
Satellite radio tuner, ETACS-ECU,
A/C-ECU
U0245
Audio visual navigation unit
time-out
KOS-ECU or WCM, Occupant
classification-ECU, Combination meter,
Hands-free module, ETACS-ECU,
A/C-ECU
Code
No.
Diagnostic item
Output ECU
Action
CAN COMMUNICATION-RELATED DTC (U-CODE) TABLE
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CONTROLLER AREA NETWORK (CAN)
54C-242
U0401
Engine malfunction detected
S-AWC-ECU, ASC-ECU
Diagnose CAN main
bus lines and confirm
input signals.
U0428
Communication error in steering
wheel sensor
U0431
ETACS malfunction detected
S-AWC-ECU
U1003
G and yaw rate sensor bus-off
S-AWC-ECU, ASC-ECU
U1108
Excess CAN-B ECU detection
ETACS-ECU
U1120
Bus line (CAN-C) low input
U1121
Bus line (CAN-C) high input
U1180
Combination meter time-out
ECM
CAN main bus line
diagnostics
U1412
Implausible vehicle speed signal
received
KOS-ECU or WCM
Diagnose CAN main
bus lines and confirm
input signals.
U1414
Defective coding data
SRS-ECU
U1415
Coding not completed/Data fail
S-AWC-ECU, ASC-ECU, KOS-ECU or
WCM, SRS-ECU, Combination meter,
Radio and CD player or CD changer,
CAN box unit, A/C-ECU
U1417
Implausible coding data
S-AWC-ECU, ASC-ECU, KOS-ECU or
WCM, CAN box unit
Code
No.
Diagnostic item
Output ECU
Action
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