Mitsubishi Lancer Evolution X. Manual — part 530
DIAGNOSIS <TC-SST>
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TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)
22C-77
STEP 2. Check whether the DTC is reset.
After 5 or more seconds have passed with the ignition switch
ON position, check that the DTC is reset.
Q: Is DTC No. P0967 set?
YES : Replace the mechatronic assembly. (Refer to
.)
NO : Intermittent malfunction. (Refer to GROUP 00 − How
to Cope with Intermittent Malfunction
.)
DTC P0968: Shift/Cooling Switching Solenoid System (Open circuit)
CAUTION
• If there is any problem in the CAN bus lines,
an incorrect diagnostic trouble code may be
set. Prior to this diagnosis, diagnose the CAN
bus lines.
• Whenever the ECU is replaced, ensure that
the CAN bus lines are normal.
.
DIAGNOSTIC FUNCTION
TC-SST-ECU checks that the shift/cooling switching
solenoid circuit is normal.
.
DESCRIPTIONS OF MONITOR METHODS
The shift/cooling switching solenoid circuit is deter-
mined to be open.
.
MONITOR EXECUTION
• Continuous
.
MONITOR EXECUTION CONDITIONS
(OTHER MONITOR AND SENSOR)
Other Monitor (There is no temporary DTC stored
in memory for the item monitored below)
• P1852: Shift fork 1 or 2 opposite direction move-
ment
• P1855: Shift fork 3 or 4 opposite direction move-
ment
Sensor (The sensor below is determined to be
normal)
• Not applicable
.
DIAGNOSIS <TC-SST>
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TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)
22C-78
LOGIC FLOW CHARTS (Monitor Sequence)
.
DTC SET CONDITIONS
Check Conditions
• Voltage of battery: 8 V or more.
• Voltage of battery: 16.5 V or less.
JUDGMENT CRITERIA
• FET (Field Effect Transistor) output: 1 V or more.
(220 millisecond)
.
OBD-II DRIVE CYCLE PATTERN
The FET channel output remains 1 V or less for 220
milliseconds.
.
PROBABLE CAUSES
• Malfunction of TC-SST-ECU
• Malfunction of shift/cooling switching solenoid
DIAGNOSTIC PROCEDURE
Required Special Tools:
• MB991958 Scan Tool (M.U.T.-III Sub Assembly)
• MB991824: Vehicle Communication Interface (V.C.I.)
• MB991827 M.U.T.-III USB Cable
• MB991910 M.U.T.-III Main Harness A
STEP 1. Scan tool CAN bus diagnostics
Using scan tool MB991958, diagnose the CAN bus lines.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus lines. (Refer to GROUP 54C −
Troubleshooting
.) After repairing the CAN
bus line, go to Step 2.
AC710653
START
No
Yes
Good
Malfunction
END
Monitoring condition met
Continuous failure
for 220 msec
No
Yes
No
Yes
FET* output > 1 V
*FET : Field Effect Transistor
DIAGNOSIS <TC-SST>
TSB Revision
TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)
22C-79
STEP 2. Check whether the DTC is reset.
15 seconds after turning ON the ignition switch, check that the
DTC is reset.
Q: Is DTC No. P0968 set?
YES : Replace the mechatronic assembly. (Refer to
.)
NO : Intermittent malfunction. (Refer to GROUP 00 − How
to Cope with Intermittent Malfunction
.)
DTC P0970: Shift/Cooling Switching Solenoid System (Short to ground)
CAUTION
• If there is any problem in the CAN bus lines,
an incorrect diagnostic trouble code may be
set. Prior to this diagnosis, diagnose the CAN
bus lines.
• Whenever the ECU is replaced, ensure that
the CAN bus lines are normal.
.
DIAGNOSTIC FUNCTION
TC-SST-ECU checks that the shift/cooling switching
solenoid circuit is normal.
.
DESCRIPTIONS OF MONITOR METHODS
The shift/cooling switching solenoid circuit is deter-
mined to be short to ground.
.
MONITOR EXECUTION
• Continuous
.
MONITOR EXECUTION CONDITIONS
(OTHER MONITOR AND SENSOR)
Other Monitor (There is no temporary DTC stored
in memory for the item monitored below)
• P1852: Shift fork 1 or 2 opposite direction move-
ment
• P1855: Shift fork 3 or 4 opposite direction move-
ment
Sensor (The sensor below is determined to be
normal)
• Not applicable
.
DIAGNOSIS <TC-SST>
TSB Revision
TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)
22C-80
LOGIC FLOW CHARTS (Monitor Sequence)
.
DTC SET CONDITIONS
Check Conditions
• Voltage of battery: 8 V or more.
• Voltage of battery: 16.5 V or less.
JUDGMENT CRITERIA
• FET (Field Effect Transistor) output: 100 mV or
less. (220 millisecond)
.
OBD-II DRIVE CYCLE PATTERN
The FET channel output remains 100 mV or more for
220 milliseconds.
.
PROBABLE CAUSES
• Malfunction of TC-SST-ECU
• Malfunction of shift/cooling switching solenoid
DIAGNOSTIC PROCEDURE
Required Special Tools:
• MB991958 Scan Tool (M.U.T.-III Sub Assembly)
• MB991824: Vehicle Communication Interface (V.C.I.)
• MB991827 M.U.T.-III USB Cable
• MB991910 M.U.T.-III Main Harness A
STEP 1. Scan tool CAN bus diagnostics
Using scan tool MB991958, diagnose the CAN bus lines.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus lines. (Refer to GROUP 54C −
Troubleshooting
.) After repairing the CAN
bus line, go to Step 2.
AC710654
START
No
Yes
Good
Malfunction
END
Monitoring condition met
Continuous failure
for 220 msec
No
Yes
No
Yes
Channel output < 100 mV
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