Mitsubishi Evolution X. Manual — part 455
DIAGNOSIS <TC-SST>
TSB Revision
TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)
22C-277
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.
(400 millisecond)
.
OBD-II DRIVE CYCLE PATTERN
The FET channel output remains 1 V or less 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.
STEP 2. Check whether the DTC is reset.
Q: Is DTC No. P2812 set?
YES : Replace the TC-SST assembly. (Refer to
NO : Intermittent malfunction. (Refer to GROUP 00
− How
to Cope with Intermittent Malfunction
.)
AC710661
START
No
Good
Malfunction
END
Monitoring condition met
Continuous failure
for 400 msec
No
Yes
Yes
Yes
FET* output > 1 V
No
*FET : Field Effect Transistor
DIAGNOSIS <TC-SST>
TSB Revision
TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)
22C-278
DTC P2814: Clutch/Shift Changeover Solenoid 2 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 clutch/shift
changeover solenoid 2 circuit is normal.
.
DESCRIPTIONS OF MONITOR METHODS
The clutch/shift changeover solenoid 2 circuit is
determined 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)
• P2733: Clutch/shift switching solenoid 1, spool
stuck
• P2736: Clutch/shift switching solenoid 1 system
(Open circuit)
• P2738: Clutch/shift switching solenoid 1 system
(Short to ground)
• P2739: Clutch/shift switching solenoid 1 system
(Short to power supply)
• P2809: Clutch/shift switching solenoid 2, spool
stuck
• P2812: Clutch/shift switching solenoid 2 system
(Open circuit)
• P2815: Clutch/shift switching solenoid 2 system
(Short to power supply)
• P181E: Clutch 2 (Pressure low range out)
• P181F: Clutch 2 (Pressure high range out)
• P185B: Disengagement too late with clutch 2
Sensor (The sensor below is determined to be
normal)
• Clutch/shift switching solenoid 1
.
DIAGNOSIS <TC-SST>
TSB Revision
TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)
22C-279
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. (200 millisecond)
.
OBD-II DRIVE CYCLE PATTERN
The FET channel output remains 100 mV or more for
200 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.
STEP 2. Check whether the DTC is reset.
Q: Is DTC No. P2814 set?
YES : Replace the TC-SST assembly. (Refer to
NO : Intermittent malfunction. (Refer to GROUP 00
− How
to Cope with Intermittent Malfunction
.)
AC710662
START
No
Good
Malfunction
END
Monitoring condition met
Continuous failure
for 200 msec
No
Yes
Yes
Yes
FET* output < 100 mV
No
*FET : Field Effect Transistor
DIAGNOSIS <TC-SST>
TSB Revision
TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)
22C-280
DTC P2815: Clutch/Shift Changeover Solenoid 2 System (Short to power supply)
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 clutch/shift
changeover solenoid 2 circuit is normal.
.
DESCRIPTIONS OF MONITOR METHODS
The clutch/shift changeover solenoid 2 circuit is
determined to be short to power supply.
.
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)
• P2733: Clutch/shift switching solenoid 1, spool
stuck
• P2736: Clutch/shift switching solenoid 1 system
(Open circuit)
• P2738: Clutch/shift switching solenoid 1 system
(Short to ground)
• P2739: Clutch/shift switching solenoid 1 system
(Short to power supply)
• P2809: Clutch/shift switching solenoid 2, spool
stuck
• P2812: Clutch/shift switching solenoid 2 system
(Open circuit)
• P2814: Clutch/shift switching solenoid 2 system
(Short to ground)
• P181E: Clutch 2 (Pressure low range out)
• P181F: Clutch 2 (Pressure high range out)
• P185B: Disengagement too late with clutch 2
Sensor (The sensor below is determined to be
normal)
• Clutch/shift switching solenoid 1
.
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