Mitsubishi Colt Ralliart. Manual — part 303
AC206268AJ
<Vehicles without ASC>
METER/AC
ETACS
M.U.T.
J/C(1)
J/C(2)
ABS
EPS
ENG/CVT
: Red section on screen
AC206268AK
<Vehicles with ASC>
METER/AC
ETACS
SAS
M.U.T.
J/C(1)
J/C(2)
ASC
EPS
YR/G
ENG/CVT
: Red section on screen
TROUBLESHOOTING
CONTROLLER AREA NETWORK (CAN)
54D-41
(2) Check that the M.U.T.-III indications correspond
to the illustration.
Q: Is the check result normal?
YES :
<M.U.T.-III indications correspond to the
illustration> Repair the wiring harness
between joint connector (CAN1) and
ETACS-ECU connector.
NO :
<M.U.T.-III indications do not correspond to
the illustration> Check the ETACS-ECU
connector, and repair if necessary. If the
ETACS-ECU connector is in good condition,
power supply to the ETACS-ECU may be
suspected. Diagnose the SWS system.
Refer to GROUP 54B
− Troubleshooting
.
STEP 5. M.U.T.-III CAN bus diagnostics (B-142
steering wheel sensor connector disconnected)
CAUTION
A digital multimeter should be used. For details
refer to
CAUTION
The test wiring harness should be used. For
details refer to
.
AC601077AB
Connector: B-142
Harness side
(1) Disconnect the steering wheel sensor connector,
and diagnose by using the M.U.T.-III.
AC206268AK
<Vehicles with ASC>
METER/AC
ETACS
SAS
M.U.T.
J/C(1)
J/C(2)
ASC
EPS
YR/G
ENG/CVT
: Red section on screen
(2) Check that the M.U.T.-III indications correspond
to the illustration.
Q: Is the check result normal?
YES :
<M.U.T.-III indications correspond to the
illustration> Repair the wiring harness
between joint connector (CAN1) and
steering wheel sensor connector.
NO :
<M.U.T.-III indications do not correspond to
the illustration> Check the steering wheel
sensor connector, and repair if necessary. If
the steering wheel sensor connector is in
good condition, power supply to the steering
wheel sensor may be suspected. Diagnose
the ASC system. Refer to GROUP 35C
−
Troubleshooting
Main
Index
Group
TOC
TROUBLESHOOTING
CONTROLLER AREA NETWORK (CAN)
54D-42
STEP 6. Resistance measurement at the B-01
joint connector (CAN2).
CAUTION
A digital multimeter should be used. For details
refer to
CAUTION
The test wiring harness should be used. For
details refer to
AC313820AF
Connector: B-01
(1) Disconnect the connector, and measure at the
wiring harness side.
CAUTION
When measuring the resistance, disconnect the
negative battery terminal. For details refer to
.
(2) Ensure that the negative battery terminal is
disconnected.
(3) Measure the voltage between each of B-01 joint
connector (CAN2) terminals and body earth.
<CAN_H>
•
AC204738HN
Harness side: B-01
Test
harness
TerminalNo.1 and body earth <vehicles with
ASC>
•
AC313908
AC313908AO
Harness side: B-01
Test
harness
Terminal No.2 and body earth
•
AC313908
AC313908AS
Harness side: B-01
Test
harness
Terminal No.8 and body earth
•
AC313908
AC313908AT
Harness side: B-01
Test
harness
Terminal No.9 and body earth
OK: 1 k
Ω or more
Main
Index
Group
TOC
TROUBLESHOOTING
CONTROLLER AREA NETWORK (CAN)
54D-43
<CAN_L>
•
AC313908
AC313908AQ
Harness side: B-01
Test
harness
Terminal No.4 and body earth
•
AC204738
AC204738
AC204738NG
Harness side: B-01
Test harness
Terminal No.5 and body earth <vehicles with
ASC>
•
AC313908
AC313908AU
Harness side: B-01
Test
harness
Terminal No.10 and body earth
•
AC313908
AC313908AV
Harness side: B-01
Test
harness
Terminal No.11 and body earth
OK: 1 k
Ω or more
Q: Is the check result normal?
YES <all of the measurement results show 1 k
Ω or
more> :
Repair the wiring harness between joint
connector (CAN2) and intermediate
connector (B-40).
NO <The resistance between terminal No.1 or 5 and
body earth is less than 1 k
Ω> :
Go to Step 9.
NO <The resistance between terminal No.2 or 4 and
body earth is less than 1 k
Ω> :
Go to Step 7.
NO <The resistance between terminal No.8 or 11
and body earth is less than 1 k
Ω> :
Go to Step 8.
NO <The resistance between terminal No.9 or 10
and body earth is less than 1 k
Ω> :
Repair the
wiring harness between joint connector
(CAN2) and engine-ECU <M/T> or
engine-CVT-ECU <CVT>.
STEP 7. M.U.T.-III CAN bus diagnostics (A-05
ABS-ECU <vehicles without ASC> or ASC-ECU
<vehicles with ASC> connector disconnected)
AC601294
A-05 (B)
AB
Harness side
<ABS-ECU>
<ASC-ECU>
Connector: A-05
(1) Disconnect the ABS-ECU <vehicles without
ASC> or ASC-ECU <vehicles with ASC>
connector, and diagnose by using the M.U.T.-III.
Main
Index
Group
TOC
AC206268AJ
<Vehicles without ASC>
METER/AC
ETACS
M.U.T.
J/C(1)
J/C(2)
ABS
EPS
ENG/CVT
: Red section on screen
AC206268AK
<Vehicles with ASC>
METER/AC
ETACS
SAS
M.U.T.
J/C(1)
J/C(2)
ASC
EPS
YR/G
ENG/CVT
: Red section on screen
TROUBLESHOOTING
CONTROLLER AREA NETWORK (CAN)
54D-44
(2) Check that the M.U.T.-III indications correspond
to the illustration.
Q: Is the check result normal?
YES :
<M.U.T.-III indications correspond to the
illustration> Repair the wiring harness
between joint connector (CAN2) and
ABS-ECU <vehicles without ASC> or
ASC-ECU < connector.
NO :
<M.U.T.-III indications do not correspond to
the illustration> Check the ABS-ECU
<vehicles without ASC> or ASC-ECU <
connector, and repair if necessary. If the
ABS-ECU <vehicles without ASC> or
ASC-ECU < connector is in good condition,
power supply to the ABS-ECU <vehicles
without ASC> or ASC-ECU < may be
suspected. Diagnose the ABS or ASC
system. Refer to GROUP 35B
−
<vehicles without
ASC> or GROUP 35C
− Troubleshooting
<vehicles with ASC>.
STEP 8. M.U.T.-III CAN bus diagnostics (B-37
EPS-ECU connector disconnected)
AC313820
Connector: B-37
AG
B-37 (B)
Harness side
(1) Disconnect the EPS-ECU connector, and
diagnose by using the M.U.T.-III.
AC206268AJ
<Vehicles without ASC>
METER/AC
ETACS
M.U.T.
J/C(1)
J/C(2)
ABS
EPS
ENG/CVT
: Red section on screen
AC206268AK
<Vehicles with ASC>
METER/AC
ETACS
SAS
M.U.T.
J/C(1)
J/C(2)
ASC
EPS
YR/G
ENG/CVT
: Red section on screen
(2) Check that the M.U.T.-III indications correspond
to the illustration.
Q: Is the check result normal?
YES :
<M.U.T.-III indications correspond to the
illustration> Repair the wiring harness
between joint connector (CAN2) and
EPS-ECU connector.
NO :
<M.U.T.-III indications do not correspond to
the illustration> Check the EPS-ECU
connector, and repair if necessary. If the
EPS-ECU connector is in good condition,
power supply to the EPS-ECU may be
suspected. Diagnose the EPS system.
Refer to GROUP 37
− Troubleshooting
.
Main
Index
Group
TOC
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