Mitsubishi Lancer Evolution X. Manual — part 537
DIAGNOSIS <TC-SST>
TSB Revision
TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)
22C-105
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
• Supply voltage: 3.25 V or more. (140 millisecond)
.
OBD-II DRIVE CYCLE PATTERN
The supply voltage remains 3.25 V or less for 140
milliseconds.
.
PROBABLE CAUSES
• Malfunction of TC-SST-ECU
• Malfunction of shift fork position sensor 3 and 4
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.
AC710670
START
No
Good
Malfunction
END
Monitoring condition met
Continuous failure
for 140 msec
No
Yes
Yes
Yes
No
Sensor supply > 3.25 V
DIAGNOSIS <TC-SST>
TSB Revision
TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)
22C-106
STEP 2. Check the TC-SST-ECU power supply circuit
Refer to
.
Q: Is the check result normal?
YES : Go to Step 3.
NO : Repair the TC-SST-ECU power supply circuit. (Refer
to
.) After repairing the power supply
circuit, go to Step 3.
STEP 3. Check whether the DTC is reset.
Q: Is DTC No. P1807 set?
YES : Replace the mechatronic assembly. (Refer to
.)
NO : Intermittent malfunction. (Refer to GROUP 00 − How
to Cope with Intermittent Malfunction
.)
DTC P1808: TC-SST-ECU temperature, fluid temperature sensor system (Correlation error)
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 temperature sensor
and the fluid temperature sensor are normal.
.
DESCRIPTIONS OF MONITOR METHODS
The difference of the output between the ECU tem-
perature sensor and fluid temperature sensor is
large.
.
MONITOR EXECUTION CONDITIONS
(OTHER MONITOR AND SENSOR)
Other Monitor (There is no temporary DTC stored
in memory for the item monitored below)
• Not applicable
Sensor (The sensor below is determined to be
normal)
• Not applicable
.
DIAGNOSIS <TC-SST>
TSB Revision
TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)
22C-107
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
• Calculated temperature ("Temperature B: Fluid
temperature sensor output" − "Temperature A:
TC-SST-ECU temperature sensor output"): 20° C
(36° F) or more. (12 seconds)
.
OBD-II DRIVE CYCLE PATTERN
The difference of the calculated temperature is 20° C
(36° F) or less.
.
PROBABLE CAUSES
• 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
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.
AC710595
START
No
Yes
Yes
Good
Malfunction
END
Monitoring condition met
No
Continuous failure for 12 sec
No
Yes
|Temperature B -
Temperature A|
> 20 ˚C (36 ˚F)
Temperature B: Fluid temperature sensor output
Temperature A: TC-SST-ECU temperature sensor output
DIAGNOSIS <TC-SST>
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TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)
22C-108
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. P1808 set?
YES : Replace the mechatronic assembly. (Refer to
.)
NO : Intermittent malfunction. (Refer to GROUP 00 − How
to Cope with Intermittent Malfunction
.)
DTC P180C: Clutch pressure cut spool sticking
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 pressure cut
spool is normal.
.
DESCRIPTIONS OF MONITOR METHODS
The clutch pressure cut spool is determined to be
seized.
.
PROBABLE CAUSES
• 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
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.
Warm up the engine and let it idle for 15 seconds. Then check
that the DTC is reset.
Q: Is DTC No. P180C set?
YES : Replace the mechatronic assembly. (Refer to
.)
NO : Intermittent malfunction. (Refer to GROUP 00 − How
to Cope with Intermittent Malfunction
.)
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