Mitsubishi Evolution X. Manual - part 422

 

  Index      Mitsubishi     Mitsubishi Evolution X - service repair manual 2008 year

 

Search            

 

 

 

 

 

 

 

  

 

Content   ..  420  421  422  423   ..

 

 

Mitsubishi Evolution X. Manual - part 422

 

 

DIAGNOSIS <TC-SST>

TSB Revision

TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)

22C-145

STEP 2. Check whether the DTC is reset.
Q: Is DTC No. P1834 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 P1835: Shift Fork Position Sensor 4 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 shift fork position sen-
sor 4 is normal.

.

DESCRIPTIONS OF MONITOR METHODS

The shift fork position sensor 4 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)

• 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)

• P1834: Shift fork position sensor 4 system (Neu-

tral)

• 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

• 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)

• Not applicable

.

DIAGNOSIS <TC-SST>

TSB Revision

TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)

22C-146

LOGIC FLOW CHARTS (Monitor Sequence) <Shift fork 4 current gear: 4th gear>

.

DTC SET CONDITIONS <SHIFT FORK 4 
CURRENT GEAR: 4TH GEAR>

Check Conditions

• Voltage of battery: 8 V or more.

• Voltage of battery: 16.5 V or less.

• Engine speed: 500 r/min or more.

• Time since above engine condition: 400 millisec-

ond or more.

• Input shaft 2 (even) speed: 500 r/min or more.

• Shift fork 4 current gear: 4th gear.

• Synchro (2nd gear) slip speed: 80 r/min or more.

• Requested shift fork: Not shift fork 4.

JUDGMENT CRITERIA

• Shift fork 4 position: 6 mm (0.24 inch) or less. 

(250 millisecond)

.

OBD-II DRIVE CYCLE PATTERN <SHIFT 
FORK 2 CURRENT GEAR: 4TH GEAR>

The travel distance of the shift fork 4 remains 6 mm 
(0.24 inch) or more for 250 milliseconds.

.

AC710682

START

No

Good

Malfunction

END

Monitoring condition met

Continuous failure
for 250 msec

No

Yes

Yes

Yes

No

Shift fork position
< 6 mm (0.24 inch)

DIAGNOSIS <TC-SST>

TSB Revision

TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)

22C-147

LOGIC FLOW CHARTS (Monitor Sequence) <Shift fork 4 current gear: 2nd gear>

.

DTC SET CONDITIONS <SHIFT FORK 4 
CURRENT GEAR: 2ND GEAR>

Check Conditions

• Voltage of battery: 8 volts or more.

• Voltage of battery: 16.5 volts or less.

• Engine speed: 500 r/min or more.

• Time since above engine condition: 400 millisec-

ond or more.

• Input shaft 2 (even) speed: 500 r/min or more.

• Shift fork 4 current gear: 2nd gear.

• Synchro (4th gear) slip speed: 80 r/min or more.

• Requested shift fork: not shift fork 4.

JUDGMENT CRITERIA

• Shift fork 4 position: −6 mm (−0.24 in) or more. 

(250 millisecond)

.

OBD-II DRIVE CYCLE PATTERN <SHIFT 
FORK 2 CURRENT GEAR: 3RD GEAR>

The travel distance of the shift fork 4 remains 

−6 mm 

(

−0.24 inch) or less for 250 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.

AC710683

START

No

Good

Malfunction

END

Monitoring condition met

Continuous failure
for 250 msec

No

Yes

Yes

Yes

No

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

DIAGNOSIS <TC-SST>

TSB Revision

TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)

22C-148

STEP 2. Check whether the DTC is reset.
Q: Is DTC No. P1835 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 P1836: Shift Fork 1 Malfunction

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 movement of the shift 
fork 1 is normal.

.

DESCRIPTIONS OF MONITOR METHODS

The movement of the shift fork 1 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)

• P183D: Shift fork 2 malfunction

• P1844: Shift fork 3 malfunction

Sensor (The sensor below is determined to be 

normal)

• Not applicable

.

LOGIC FLOW CHARTS (Monitor Sequence) <Functional check - blocked>

.

AC710675

START

No

Good

Malfunction

END

Yes

Malfunction criteria met

Yes

Monitoring condition met

No

 

 

 

 

 

 

 

Content   ..  420  421  422  423   ..