Mitsubishi Evolution X. Manual — part 415

DIAGNOSIS <TC-SST>

TSB Revision

TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)

22C-117

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

• Position sensor voltage: 0.128 V or less. (160 mil-

lisecond)

.

OBD-II DRIVE CYCLE PATTERN

The position sensor voltage remains 0.128 V or more
for 160 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

P.54C-14

.) After repairing the CAN

bus line, go to Step 2.

STEP 2. Check whether the DTC is reset.
Q: Is DTC No. P1825 set?

YES : Replace the TC-SST assembly. (Refer to

P.22C-341

.)

NO : Intermittent malfunction. (Refer to GROUP 00

− How

to Cope with Intermittent Malfunction

P.00-15

.)

AC710676

START

No

Good

Malfunction

END

Monitoring condition met

Continuous failure
for 160 msec

No

Yes

Yes

Yes

No

Shift fork position
< 0.128 V

DIAGNOSIS <TC-SST>

TSB Revision

TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)

22C-118

DTC P1826: Shift Fork Position Sensor 2 System (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 voltage of the shift fork
position sensor 2 is normal.

.

DESCRIPTIONS OF MONITOR METHODS

The voltage of the shift fork position sensor 2 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)

• P1825: Shift fork position sensor 2 system (Volt-

age low range out)

• P1827: Shift fork position sensor 2 system (Out-

put range out)

• P1828: Shift fork position sensor 2 system (Neu-

tral)

• P1829: Shift fork position sensor 2 system (Poor

performance)

• P183D: Shift fork 2 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

• 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)

• Not applicable

.

DIAGNOSIS <TC-SST>

TSB Revision

TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)

22C-119

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

• Position sensor voltage: 3.008 V or more. (160

millisecond)

.

OBD-II DRIVE CYCLE PATTERN

The position sensor voltage remains 3.008 V or less
for 160 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

P.54C-14

.) After repairing the CAN

bus line, go to Step 2.

STEP 2. Check whether the DTC is reset.
Q: Is DTC No. P1826 set?

YES : Replace the TC-SST assembly. (Refer to

P.22C-341

.)

NO : Intermittent malfunction. (Refer to GROUP 00

− How

to Cope with Intermittent Malfunction

P.00-15

.)

AC710680

START

No

Good

Malfunction

END

Monitoring condition met

Continuous failure
for 160 msec

No

Yes

Yes

Yes

No

Shift fork position
> 3.008 V

DIAGNOSIS <TC-SST>

TSB Revision

TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)

22C-120

DTC P1827: Shift Fork Position Sensor 2 System (Output 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 shift fork
position sensor 2 is normal.

.

DESCRIPTIONS OF MONITOR METHODS

The output of the shift fork position sensor 2 is deter-
mined to be abnormal.

.

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)

• P1825: Shift fork position sensor 2 system (Volt-

age low range out)

• P1826: Shift fork position sensor 2 system (Volt-

age high range out)

• P1828: Shift fork position sensor 2 system (Neu-

tral)

• P1829: Shift fork position sensor 2 system (Poor

performance)

• P183D: Shift fork 2 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

• 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)

• Not applicable

.