Mitsubishi Evolution X. Manual — part 392

DIAGNOSIS <TC-SST>

TSB Revision

TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)

22C-25

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 engine start: 400 millisecond or more.

JUDGMENT CRITERIA

• Sensor current: 17 mA or more. (500 millisecond)

.

OBD-II DRIVE CYCLE PATTERN

The sensor current remains 17 mA or less for 500
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.

Sensor current < 4 mA

AC710596

START

No

Yes

Yes

No

Good

Malfunction

END

Monitoring condition met

No

Continuous failure
for 500 msec

Yes

No

Sensor current > 17 mA

DIAGNOSIS <TC-SST>

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TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)

22C-26

STEP 2. Check whether the DTC is reset.
Q: Is DTC No. P0715 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

.)

DTC P0716: Input shaft 1 (odd number gear axle) speed sensor system (Poor performance)

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 input shaft 1 (odd num-
ber gear axle) speed sensor is normal.

.

DESCRIPTIONS OF MONITOR METHODS

The rotation speed of the input shaft 1 (odd number
gear axle) is determined 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)

• P0715: Input shaft 1 (odd number gear axle)

speed sensor system (Output high range out)

• P0717: Input shaft 1 (odd number gear axle)

speed sensor system (Output low range out)

• P2766: Input shaft 2 (even number gear axle)

speed sensor system (Poor performance)

Sensor (The sensor below is determined to be

normal)

• Input shaft 2 (even number gear axle) speed sen-

sor

.

DIAGNOSIS <TC-SST>

TSB Revision

TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)

22C-27

LOGIC FLOW CHARTS (Monitor Sequence) <Rationality>

.

AC710597

START

No

Yes

Yes

No

Good

Malfunction

END

Monitoring condition met

Continuous failure
for 500 msec

Yes

No

Failure condition 1

Failure condition 2

No

DIAGNOSIS <TC-SST>

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TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)

22C-28

LOGIC FLOW CHARTS (Monitor Sequence) <Rationality (Failure condition 1)>

.

LOGIC FLOW CHARTS (Monitor Sequence) <Rationality (Failure condition 2)>

.

DTC SET CONDITIONS

Check Conditions <Rationality>

• Voltage of battery: 8 V or more.

• Voltage of battery: 16.5 V or less.

• Input shaft [odd] gear: engaged.

• Input shaft [even] gear: engaged.

AC710598

START

No

Yes

Malfunction

No

Yes

|(Input shaft speed [odd] /
total gear ratio [odd]) - (input shaft speed [even] /
total gear ratio [even])| > 100

r/min

|(Input shaft speed*

1

/ total gear ratio [odd]) -

output shaft speed| > 300

r/min

Failure condition 2

*

1

: In case of input speed sensor A monitor, this is speed of input shaft (odd).

In case of input speed sensor B monitor, this is speed of input shaft (even).

AC710599

No

Yes

Good

Malfunction

Input shaft speed [odd]
< 1 r/min

No

Yes

Input shaft speed [even]
> 50 r/min

No

Yes

Good

Malfunction

Input shaft speed [odd]
> 50 r/min

No

Yes

Input shaft speed [even]
< 1 r/min

*

2

*

3

*

2

:In case of input speed sensor A monitor

*

3

:In case of input speed sensor B monitor