Mitsubishi Evolution X. Manual — part 408
DIAGNOSIS <TC-SST>
TSB Revision
TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)
22C-89
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: 3.07 V or less. (140 millisecond)
.
OBD-II DRIVE CYCLE PATTERN
The supply voltage remains 3.07 V or more for 140
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. P1806 set?
YES : Replace the TC-SST assembly. (Refer to
NO : Intermittent malfunction. (Refer to GROUP 00
− How
to Cope with Intermittent Malfunction
.)
AC710669
START
No
Good
Malfunction
END
Monitoring condition met
Continuous failure
for 140 msec
No
Yes
Yes
Yes
No
Sensor supply < 3.07 V
DIAGNOSIS <TC-SST>
TSB Revision
TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)
22C-90
DTC P1807: Shift Fork Position Sensor 3 and 4 System (Power supply voltage 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 supply voltage to the
shift fork position sensor 3 and 4 is normal.
.
DESCRIPTIONS OF MONITOR METHODS
The supply voltage to the shift fork position sensor 3
and 4 is 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)
• P182A: Shift fork position sensor 3 system (Volt-
age low range out)
• P182B: Shift fork position sensor 3 system (Volt-
age high range out)
• P182C: Shift fork position sensor 3 system (Out-
put range out)
• P182E: Shift fork position sensor 3 system (Poor
performance)
• P1831: Shift fork position sensor 4 system (Volt-
age low range out)
• P1832: Shift fork position sensor 4 system (Volt-
age high range out)
• P1833: Shift fork position sensor 4 system (Out-
put range out)
• P1835: Shift fork position sensor 4 system (Poor
performance)
• P1836: Shift fork 1 malfunction
• P183D: Shift fork 2 malfunction
• P1844: Shift fork 3 malfunction
• P184B: Shift fork 4 malfunction
• P1852: Shift fork 1 or 2 opposite direction move-
ment
• P1855: Shift fork 3 or 4 opposite direction move-
ment
• P1857: Odd number gear axle interlock
• P1858: Even number gear axle interlock
• P1876: Gear block 1st
• P1877: Gear block 2nd
• P1878: Gear block 3rd
• P1879: Gear block 4th
• P187A: Gear block 5th
• P187B: Gear block 6th
• P187C: Gear block reverse
Sensor (The sensor below is determined to be
normal)
• Shift fork position sensor 3
• Shift fork position sensor 4
.
DIAGNOSIS <TC-SST>
TSB Revision
TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)
22C-91
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
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. P1807 set?
YES : Replace the TC-SST assembly. (Refer to
NO : Intermittent malfunction. (Refer to GROUP 00
− How
to Cope with Intermittent Malfunction
.)
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-92
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
.
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)
.
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
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