Mitsubishi Lancer Evolution X. Manual - part 605

DIAGNOSIS <SHIFT LEVER>

TSB Revision

TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)

22C-377

INSPECTION PROCEDURE 2: Shift indicator light does not illuminate.

CAUTION

Whenever the ECU is replaced, ensure that the 
CAN bus lines are normal.

.

COMMENTS ON TROUBLE SYMPTOM

The shift indicator light or shift lever-ECU may have a 
problem.

.

PROBABLE CAUSES

• Malfunction of the shift indicator light
• Damaged harness wires and connectors
• Malfunction of the shift lever-ECU

AC900534

CPU

LOW SIDE 
SWITCH

LOW SIDE 
SWITCH

LOW SIDE 
SWITCH

LOW SIDE 
SWITCH

LOW SIDE 
SWITCH

SHIFT LEVER 
POSITION 
INDICATOR 
PANEL

SHIFT 
LEVER

Shift lever position indicator panel circuit

AD

AC705170AN

Connector: C-27-1

DIAGNOSIS <SHIFT LEVER>

TSB Revision

TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)

22C-378

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. Scan tool service data
Item No. 1: Shift lever position (Refer to Service Data Refer-
ence Table 

P.22C-391

.)

Q: Is the check result normal?

YES : Go to Step 3.
NO :  Replace the shift lever assembly. (Refer to 

P.22C-404

.)

STEP 3. Scan tool actuator test
Item No. 1: Shift indicator (Refer to Special Function (Actuator 
Test Reference Table 

P.22C-393

.)

Q: Is the check result normal?

YES : Intermittent malfunction. (Refer to GROUP 00 − How 

to Cope with Intermittent Malfunction 

P.00-15

.)

NO :  Go to Step 4.

STEP 4. Inspection of the floor console panel assembly 
connector: C-27-1
Check for the contact with terminals.
Q: Is the check result normal?

YES : Replace the floor console panel assembly. (Refer to 

GROUP 52A − Floor Console Assembly 

P.52A-10

.)

NO :  Repair the defective connector.

DIAGNOSIS <SHIFT LEVER>

TSB Revision

TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)

22C-379

INSPECTION PROCEDURE 3: Back-up light does not illuminate.

IGNITION
SWITCH (IG1)

ETACS-ECU

IG1
RELAY

CPU

SHIFT LEVER

SHIFT LEVER
POSITION
SENSOR (R)

HIGH SIDE
SWITCH (R)

BACKUP
LIGHT

(LH)

(RH)

JOINT
CONNECTOR 
(4)

JOINT
CONNECTOR 
(4)

FUSIBLE 
LINK

34

Backup lamp switch system circuit

AC902076AB

DIAGNOSIS <SHIFT LEVER>

TSB Revision

TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)

22C-380

CAUTION

Whenever the ECU is replaced, ensure that the 
CAN bus lines are normal.

.

COMMENTS ON TROUBLE SYMPTOM

The back-up light, ETACS-ECU, or shift lever-ECU 
may have a problem.

.

PROBABLE CAUSES

• Malfunction of the ETACS-ECU
• Malfunction of the back-up light
• Damaged harness wires and connectors
• Malfunction of the shift lever-ECU

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

AC705170AM

Connector: C-27

AC708950

Connectors: C-43, C-47

CO

C-43 (B)

C-47

AC708972BK

Connectors: C-304, C-309, C-311

C-304

C-317

C-309 (B)

C-313, C-317

C-311

C-313

ETACS-ECU

AC708955AL

Connector: D-17

D-17 (BR)

AC708970AV

Connectors: F-08, F-22, F-27

F-22 (GR)

F-08 (GR)

F-27