Mitsubishi Lancer Evolution X. Manual — part 592
DIAGNOSIS <TC-SST>
TSB Revision
TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)
22C-325
STEP 2. Check whether the DTC is reset.
Q: Is DTC No. P2814 set?
YES : Replace the mechatronic assembly. (Refer to
.)
NO : Intermittent malfunction. (Refer to GROUP 00 − How
to Cope with Intermittent Malfunction
.)
DTC P2815: Clutch/Shift Switching 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 switching
solenoid 2 circuit is normal.
.
DESCRIPTIONS OF MONITOR METHODS
The clutch/shift switching solenoid 2 circuit is deter-
mined 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)
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-326
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.
• Clutch / shift switching solenoid 2: OFF.
JUDGMENT CRITERIA
• FET (Field Effect Transistor) output: (Battery volt-
age − 2 V) or more. (160 millisecond)
.
OBD-II DRIVE CYCLE PATTERN
The FET channel output remains (Battery voltage − 2
V) or less for 160 milliseconds.
.
PROBABLE CAUSES
• Malfunction of TC-SST-ECU
• Malfunction of clutch/shift switching solenoid 2
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.
AC710667
START
No
Good
Malfunction
END
Monitoring condition met
Continuous failure
for 160 msec
No
Yes
Yes
Yes
No
FET* output
> Battery voltage - 2 V
*FET : Field Effect Transistor
DIAGNOSIS <TC-SST>
TSB Revision
TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)
22C-327
STEP 2. Check whether the DTC is reset.
Q: Is DTC No. P2815 set?
YES : Replace the mechatronic assembly. (Refer to
.)
NO : Intermittent malfunction. (Refer to GROUP 00 − How
to Cope with Intermittent Malfunction
.)
DTC U0001: Bus-off
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.
.
DESCRIPTIONS OF MONITOR METHODS
TC-SST-ECU ceases communication (bus-off).
.
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)
• P0841: Clutch 1 pressure sensor system (Poor
performance)
• P0842: Clutch 1 pressure sensor system (Output
low range out)
• P0843: Clutch 1 pressure sensor system (Output
high range out)
• P0846: Clutch 2 pressure sensor system (Poor
performance)
• P0847: Clutch 2 pressure sensor system (Output
low range out)
• P0848: Clutch 2 pressure sensor system (Output
high range out)
• P185D: Clutch open not possible
• U0100: Engine time-out error
• P1803: Shift lever system (CAN or LIN time-out
error)
• P1870: Engine torque signal abnormality
• P1871: APS system (Signal abnormality)
• P1872: Between shift lever and TC-SST system
(Q-A function abnormality)
Sensor (The sensor below is determined to be
normal)
• Clutch 1 pressure sensor
• Clutch 2 pressure sensor
• APS
• Shift lever-ECU
.
DIAGNOSIS <TC-SST>
TSB Revision
TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)
22C-328
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.
• Time after TC-SST-ECU start: 5 seconds or
more.
JUDGMENT CRITERIA
• CAN communication: Error. (60 millisecond)
.
OBD-II DRIVE CYCLE PATTERN
The CAN communication remains normal for 60 milli-
seconds.
.
PROBABLE CAUSES
• The CAN bus line is defective.
• Malfunction of TC-SST-ECU
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
AC710731
START
No
Good
Malfunction
END
Yes
No
Yes
Yes
No
Continuous failure
for 60 msec
Yes
No
Monitoring condition met
CAN-H and CAN-L
shorted
CAN-H
short to ground
No
CAN -L
short to battery
Yes
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