Mitsubishi Evolution X. Manual — part 1148
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-227
STEP 49. Using scan tool MB991958, diagnose the CAN
bus line. (checking the KOS-ECU for internal failure)
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) Disconnect KOS-ECU connector C-05.
(2) Connect scan tool MB991958 to the data link connector.
(3) Turn the ignition switch to the "ON" position.
(4) 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 : Repair the wiring harness between joint connector
(CAN1) C-105 and KOS-ECU connector C-05.
NO : Check KOS-ECU connector C-05, and repair if
necessary. If the KOS-ECU connector is in good
condition, replace the KOS-ECU.
AC608435
Data link connector
MB991827
MB991824
MB991910
AB
AC709542 AD
: Red section on screen
M.U.T.
J/C (3)
J/C (2)
ASC
ENGINE
ETACS
<M/T>
SAS
S-AWC
J/C (1)
KOS/WCM
SRS
A/C
AUDIO
MMCS
Sat Radio
HFM
OCM
METER
AC709543 AD
: Red section on screen
M.U.T.
J/C (3)
J/C (2)
ASC
LEVER
ETACS
<TC-SST>
SAS
S-AWC
J/C (4)
TC-SST
ENGINE
J/C (1)
KOS/WCM
SRS
A/C
AUDIO
MMCS
Sat Radio
HFM
OCM
METER
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-228
STEP 50. Using scan tool MB991958, diagnose the CAN
bus line. (checking the WCM for internal failure)
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) Disconnect WCM connector C-07.
(2) Connect scan tool MB991958 to the data link connector.
(3) Turn the ignition switch to the "ON" position.
(4) 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 : Repair the wiring harness between joint connector
(CAN1) C-105 and WCM connector C-07.
NO : Check WCM connector C-07, and repair if necessary.
If the WCM connector is in good condition, replace
the WCM.
AC608435
Data link connector
MB991827
MB991824
MB991910
AB
AC709542 AD
: Red section on screen
M.U.T.
J/C (3)
J/C (2)
ASC
ENGINE
ETACS
<M/T>
SAS
S-AWC
J/C (1)
KOS/WCM
SRS
A/C
AUDIO
MMCS
Sat Radio
HFM
OCM
METER
AC709543 AD
: Red section on screen
M.U.T.
J/C (3)
J/C (2)
ASC
LEVER
ETACS
<TC-SST>
SAS
S-AWC
J/C (4)
TC-SST
ENGINE
J/C (1)
KOS/WCM
SRS
A/C
AUDIO
MMCS
Sat Radio
HFM
OCM
METER
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-229
STEP 51. Using scan tool MB991958, diagnose the CAN
bus line. (checking the SRS-ECU for internal failure)
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) Disconnect SRS-ECU connector C-37.
(2) Connect scan tool MB991958 to the data link connector.
(3) Turn the ignition switch to the "ON" position.
(4) 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 : Repair the wiring harness between joint connector
(CAN1) C-105 and SRS-ECU connector C-37.
NO : Check SRS-ECU connector C-37, and repair if
necessary. If the SRS-ECU connector is in good
condition, replace the SRS-ECU.
AC608435
Data link connector
MB991827
MB991824
MB991910
AB
AC709542 AD
: Red section on screen
M.U.T.
J/C (3)
J/C (2)
ASC
ENGINE
ETACS
<M/T>
SAS
S-AWC
J/C (1)
KOS/WCM
SRS
A/C
AUDIO
MMCS
Sat Radio
HFM
OCM
METER
AC709543 AD
: Red section on screen
M.U.T.
J/C (3)
J/C (2)
ASC
LEVER
ETACS
<TC-SST>
SAS
S-AWC
J/C (4)
TC-SST
ENGINE
J/C (1)
KOS/WCM
SRS
A/C
AUDIO
MMCS
Sat Radio
HFM
OCM
METER
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-230
STEP 52. Using scan tool MB991958, diagnose the CAN
bus line. (checking the occupant classification-ECU for
internal failure)
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) Disconnect occupant classification-ECU connector D-39-2.
(2) Connect scan tool MB991958 to the data link connector.
(3) Turn the ignition switch to the "ON" position.
AC608435
Data link connector
MB991827
MB991824
MB991910
AB
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