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Mitsubishi Lancer Evolution X. Manual - part 561

DIAGNOSIS <TC-SST>

TSB Revision

TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)

22C-201

LOGIC FLOW CHARTS (Monitor Sequence) <Functional check - Shift fork 2 requested
but shift fork 1 movement>

AC710710

START

Good

Malfunction

END

Yes

Continuous failure
for 200 msec

Yes

Monitoring condition met

|Initialized fork position -
shift fork 2 position| < 2.5 mm
(0.098 inch)

Shift fork 1 position
1st gear side

Shift fork 1 position
< 6 mm (0.24 inch)

Shift fork 1 position
R gear side

Shift fork 1 position
> -6 mm (-0.24 inch)

Shift fork 1 position
neutral position

|Shift fork 1 position|
> 1.8 mm (0.071 inch)

DIAGNOSIS <TC-SST>

TSB Revision

TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)

22C-202

DTC SET CONDITIONS <FUNCTIONAL
CHECK - SHIFT FORK 2 REQUESTED
BUT SHIFT FORK 1 MOVEMENT>

Check Conditions

• Voltage of battery: 8 V or more.
• Voltage of battery: 16.5 V or less.
• Engine speed: 650 r/min or more.
• Time since above engine condition: 1.5 seconds

or more.

• Requested shift fork: Shift fork 2.

Judgment Criteria

• Shift fork position: 6 mm (0.24 inch) [1st gear

side] or less, or − 6 mm (− 0.24 inch) [reverse gear

side] or more, or 1.8 mm (0.071 inch) [neutral
position] or more, and initialized fork position −

shift fork 2 position: 2.5 mm (0.098 inch) or less.
(200 millisecond)

OBD-II DRIVE CYCLE PATTERN
<FUNCTIONAL CHECK - SHIFT FORK 2
REQUESTED BUT SHIFT FORK 1
MOVEMENT>

The status with the shift fork position 6 mm (0.24
inch) [1st gear side] or more, or with − 6 mm (− 0.24

inch) [reverse gear side] or less, or with 1.8 mm
(0.071 inch) [neutral position] or less and with the ini-
tialized fork position − shift fork 2 position 2.5 mm

(0.098 inch) or more continues for 200 millisecond.

PROBABLE CAUSES

• Malfunction of TC-SST-ECU
• Malfunction of TC-SST shift fork

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

P.54C-15

.) After repairing the CAN

bus line, go to Step 2.

STEP 2. Monitoring unit No. check
(1) Check the freeze frame data (item No. 30 to No. 37).
(2) Check which monitoring unit (No. 161, No. 174, No. 184, or

No. 185) is set.

Q: Which monitoring unit is set, No. 161, No. 174, No. 184,

or No. 185?
No. 161 : Go to Step 4
Other than No. 161 : Go to Step 3

DIAGNOSIS <TC-SST>

TSB Revision

TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)

22C-203

STEP 3. Check whether the DTC is reset.
(1) Erase the DTC.
(2) Drive with shifting to each gear range.
(3) Check that the DTC is reset.
Q: Is DTC No.P183D set?

YES : Replace the mechatronic assembly. (Refer to

P.22C-421

NO : Intermittent malfunction. (Refer to GROUP 00 − How

to Cope with Intermittent Malfunction

P.00-15

STEP 4. Check whether the DTC is reset.
(1) Erase the DTC.
(2) Drive in the 3rd gear.
(3) Check that the DTC is reset.
Q: Is DTC No.P183D set?

YES : Go to Step 5.
NO : Intermittent malfunction. (Refer to GROUP 00 − How

to Cope with Intermittent Malfunction

P.00-15

STEP 5. Scan tool Teach-In
(1) Carry out the Item No.3: Line pressure Test. (Refer to

Special Function (Teach-In Reference Table

P.22C-365

).)

(2) After Teach-In, check which result ("Yes" or "No") is

displayed in the Data list No. 101: Normal End. (Refer to
Special Function (Teach-In Reference Table

P.22C-365

).)

Q: Which is displayed, "Yes" or "No"?