Mitsubishi Lancer Evolution X. Manual - part 555

 

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Mitsubishi Lancer Evolution X. Manual - part 555

 

 

DIAGNOSIS <TC-SST>

TSB Revision

TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)

22C-177

DTC P1832: Shift Fork Position Sensor 4 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 4 is normal.

.

DESCRIPTIONS OF MONITOR METHODS

The voltage of the shift fork position sensor 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)

• P1831: Shift fork position sensor 4 system (Volt-

age low range out)

• P1833: Shift fork position sensor 4 system (Out-

put range out)

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

tral)

• P1835: Shift fork position sensor 4 system (Poor 

performance)

• 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-178

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
• Malfunction of shift fork position sensor 4

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.

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-179

STEP 2. Check whether the DTC is reset.
Q: Is DTC No. P1832 set?

YES : Go to Step 3.
NO :  Intermittent malfunction. (Refer to GROUP 00 − How 

to Cope with Intermittent Malfunction 

P.00-15

.)

STEP 3. Scan tool Teach-In
(1) Carry out the Item No. 1: Plausibility check. (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"?

"Yes" : Replace the transaxle assembly. (Refer to 

P.22C-412

.)

"No" : Go to Step 4.

STEP 4. Replace the mechatronic assembly, and check if 
the DTC is reset.
(1) Replace the mechatronic assembly. (Refer to 

P.22C-421

.)

(2) Perform a test run of the vehicle.
(3) Check the DTC.
Q: Is DTC No.P1832 set?

YES : Replace the transaxle assembly. (Refer to 

P.22C-412

.)

NO :  This diagnosis is complete.

DTC P1833: Shift Fork Position Sensor 4 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 4 is normal.

.

DESCRIPTIONS OF MONITOR METHODS

The output of the shift fork position sensor 4 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)

• P1831: Shift fork position sensor 4 system (Volt-

age low range out)

• P1832: Shift fork position sensor 4 system (Volt-

age high range out)

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

tral)

• P1835: Shift fork position sensor 4 system (Poor 

performance)

• 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

DIAGNOSIS <TC-SST>

TSB Revision

TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)

22C-180

• 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

.

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.
• Engine speed: 650 r/min or more.
• Time since above engine condition: 1.5 seconds 

or more.

• Shift system status: Gear change mode (during 

shift fork moving).

JUDGMENT CRITERIA

• Shift fork 4 position counter (digitized sensor 

value): −500 counts or less, or shift fork 4 position 

counter (digitized sensor value): 500 counts or 
more. (180 millisecond)

.

OBD-II DRIVE CYCLE PATTERN

The status with the shift fork 4 position counter (digi-
tized sensor value) −500 counts or more, or with the 

shift fork 4 position counter (digitized sensor value) 
500 counts or less continues for 180 millisecond.

.

PROBABLE CAUSES

• Malfunction of TC-SST-ECU
• Malfunction of shift fork position sensor 4

AC710681

START

No

Good

Malfunction

END

Continuous failure
for 180 msec

No

Yes

Yes

Yes

No

No

Shift fork position
counter < -500

Yes

Shift fork position
counter > 500

Monitoring condition met

 

 

 

 

 

 

 

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