Mitsubishi Lancer Evolution X. Manual — part 46
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-209
STEP 3. 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 : 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)
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-210
DIAGNOSTIC ITEM 27: Short to power supply or ground, open circuit or line-to-line short in the
CAN-B bus lines.
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-B Communication Circuit
ETACS-ECU
INTERFACE
CIRCUIT
CAN DRIVE
CIRCUIT
A/C-ECU
COMBINATION
METER
SRS-ECU
WIRELESS
CONTROL
MODULE
KOS-ECU
NOTE
VEHICLES WITH WCM
VEHICLES WITH KOS
CAN DRIVE
CIRCUIT
CAN DRIVE
CIRCUIT
CAN DRIVE
CIRCUIT
JOINT CONNECTOR
(CAN1)
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-211
CAN-B Communication Circuit
ETACS-ECU
INTERFACE
CIRCUIT
INTERFACE
CIRCUIT
CAN DRIVE
CIRCUIT
HANDS FREE
MODULE
OCCUPANT
CLASSIFICATION-
ECU
SATELLITE
RADIO TUNER
RADIO AND CD
PLAYER
NOTE
VEHICLES WITHOUT MITSUBISHI MULTI-COMMUNICATION SYSTEM (MMCS)
VEHICLES WITH MITSUBISHI MULTI-COMMUNICATION SYSTEM (MMCS)
CAN
TRANSCEIVER
CIRCUIT
CAN BOX UNIT
JOINT CONNECTOR
(CAN1)
FRONT SEAT
ASSEMBLY (LH)
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-212
.
FUNCTION
If a short to power supply or ground, open circuit or
line-to-line short is present at either CAN_H or
CAN_L side on the CAN-B lines, this diagnosis result
will be set.
.
TROUBLE JUDGMENT CONDITIONS
When CAN-B lines communication is normal, and
diagnostic trouble code U0019 is set, the
ETACS-ECU determines that there is a failure.
.
TROUBLESHOOTING HINTS
• Malfunction of the connector (short to power sup-
ply or ground in connector or improperly con-
nected)
• Malfunction of the wiring harness (short to power
supply or ground, open circuit or line-to-line short
in CAN bus lines)
• Faulty ECU(s) (internal short to power supply or
ground)
AC608145
AO
Connectors: C-04, C-06, C-09, C-31, C-122
C-06
C-31
C-04
C-09
C-122 (Y)
AC608146
AE
C-17
C-108
Connectors: C-17, C-20, C-104, C-108, C-110
C-20 (B)
C-104
C-110
AC708950CF
C-05
C-41
C-105
Connectors: C-05, C-41, C-105
AC708951CF
Connectors: C-07, C-11, C-15, C-18, C-22,
C-37, C-107
C-07
C-15
C-18
C-22 (B)
C-11
C-37 (Y)
C-107
AC708972AY
Connector: C-301
ETACS-ECU
AC708954 AV
Connectors: D-39, D-39-2
D-39,
D-39-2
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст