Mitsubishi Evolution X. Manual — part 452
DIAGNOSIS <TC-SST>
TSB Revision
TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)
22C-265
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
• Fluid temperature change while 80 millisecond:
10
° C (18° F) or more, or fluid temperature
change while 80 millisecond:
−10° C (−18° F) or
more. (400 millisecond)
.
OBD-II DRIVE CYCLE PATTERN
The absolute value of the temperature rise or drop at
every 80 milliseconds remains 10
° C (18° F) or less
for 400 milliseconds.
.
PROBABLE CAUSES
• Malfunction of TC-SST-ECU
AC710592
START
No
Fluid temperature change
while 80 msec > 10 ˚C (18 ˚F)
Yes
Yes
No
Good
Malfunction
END
Monitoring condition met
No
Continuous failure
for 400 msec
Yes
No
Fluid temperature change
while 80 msec > -10 ˚C (-18 ˚F)
DIAGNOSIS <TC-SST>
TSB Revision
TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)
22C-266
DIAGNOSTIC PROCEDURE
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.
STEP 2. Check whether the DTC is reset.
Q: Is DTC No. P2741 set?
YES : Replace the TC-SST assembly. (Refer to
NO : Intermittent malfunction. (Refer to GROUP 00
− How
to Cope with Intermittent Malfunction
.)
DTC P2742: Fluid Temperature Sensor System (Output low range out)
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 output of the fluid tem-
perature sensor is normal.
.
DESCRIPTIONS OF MONITOR METHODS
The output is determined to be too low.
.
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)
• P2741: Fluid temperature sensor system (Gradi-
ent error)
• P2743: Fluid temperature sensor system (Output
high range out)
• P1808: TC-SST-ECU temperature, fluid tempera-
ture sensor system (Correlation error)
Sensor (The sensor below is determined to be
normal)
• Not applicable
.
DIAGNOSIS <TC-SST>
TSB Revision
TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)
22C-267
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
• Fluid temperature: −50° C (−58° F) or less. (400
millisecond)
.
OBD-II DRIVE CYCLE PATTERN
The fluid temperature remains
−50° C (−58° F) or more
for 400 milliseconds.
.
PROBABLE CAUSES
• Malfunction of TC-SST-ECU
DIAGNOSTIC PROCEDURE
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.
AC710593
START
No
Yes
Yes
Good
Malfunction
END
Monitoring condition met
No
Continuous failure
for 400 msec
No
Fluid temperature < -50 ˚C (-58 ˚F)
Yes
DIAGNOSIS <TC-SST>
TSB Revision
TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)
22C-268
STEP 2. Check whether the DTC is reset.
Q: Is DTC No. P2742 set?
YES : Replace the TC-SST assembly. (Refer to
NO : Intermittent malfunction. (Refer to GROUP 00
− How
to Cope with Intermittent Malfunction
.)
DTC P2743: Fluid Temperature Sensor System (Output high range out)
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 output of the fluid tem-
perature sensor is normal.
.
DESCRIPTIONS OF MONITOR METHODS
The output is determined to be too high.
.
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)
• P2741: Fluid temperature sensor system (Gradi-
ent error)
• P2742: Fluid temperature sensor system (Output
low range out)
• P1808: TC-SST-ECU temperature, fluid tempera-
ture sensor system (Correlation error)
Sensor (The sensor below is determined to be
normal)
• Not applicable
.
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