Mitsubishi Lancer Evolution X. Manual - part 114

 

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Mitsubishi Lancer Evolution X. Manual - part 114

 

 

CRUISE CONTROL

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ENGINE AND EMISSION CONTROL

17-43

STEP 3. Check the harness wire between ECM connector 
B-10 terminal number 85 and clutch switch connector C-49 
terminal number 2, and between clutch switch connector 
C-49 terminal number 1 and body ground, for damage.

• Check harness wire for open/short circuit and damage.

Q: Is the harness wires in good condition?

YES : Go to Step 4.
NO :  Repair or replace the damaged harness wire. Then go 

to Step 7.

STEP 4. Check the clutch switch.
Refer to GROUP 21A, Clutch Pedal and Master Cylinder, 
Inspection − Clutch Switch Check and Adjustment 

P.21A-7

.

Q: Is the clutch switch operating properly?

YES : Go to Step 5.
NO :  Replace the clutch switch (Refer to GROUP 21A, 

Clutch Pedal and Master Cylinder 

P.21A-4

.) Then go 

to Step 7.

STEP 5. Using scan tool MB991958, check data list item 78: 
Clutch switch.
(1) Connect scan tool MB991958 to the data link connector 

(Refer to 

P.17-10

.)

(2) Turn the ignition switch to the "ON" position.
(3) Set scan tool MB991958 to data reading mode for cruise 

control system (Refer to 

P.17-10

.)

• Item 78: Clutch switch.

• When the clutch pedal is depressed, the display on 

scan tool MB991958 should be "ON".

• When the clutch pedal is released, the display on 

scan tool MB991958 should be "OFF".

Q: Is the switch operating properly?

YES : Go to Step 6.
NO :  Replace the ECM [Refer to GROUP 13A, Engine 

Control Module (ECM) 

P.13A-888

.] When the ECM is 

replaced, register the encrypted code (Refer to 
GROUP 42C, Diagnosis − ID Code Registration 

Judgment Table 

P.42C-9

.) Then go to Step 7.

AC709275

AB

ETACS-ECU

CRUISE CONTROL

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ENGINE AND EMISSION CONTROL

17-44

STEP 6. Check the symptoms
Q: When the clutch pedal is depressed, is the cruise 

control cancelled?
YES : 
It can be assumed that this malfunction is intermittent 

(Refer to GROUP 00, How to Use 
Troubleshooting/Inspection Service Points - How to 
Cope with Intermittent Malfunction 

P.00-15

.)

NO :  Replace the ECM [Refer to GROUP 13A, Engine 

Control Module (ECM) 

P.13A-888

.] When the ECM is 

replaced, register the encrypted code (Refer to 
GROUP 42C, Diagnosis − ID Code Registration 

Judgment Table 

P.42C-9

.) Then go to Step 7.

STEP 7. Check the symptoms.
Q: When the clutch pedal is depressed, is the cruise 

control cancelled?
YES : 
The procedure is complete.
NO :  Return to Step 1.

Inspection Procedure 3: When the Shift Lever is Moved to "N" Position, Cruise Control is not 
Cancelled <TC-SST.>

.

CIRCUIT OPERATION

When the shift lever is in the "N" position, the "N" 
position signal is transmitted from the shift lever ECU 
to the ECM via CAN bus line.

.

COMMENT

• Malfunction of CAN bus line.
• Malfunction of shift lever system.

.

TROUBLESHOOTING HINTS (THE MOST 
LIKELY CAUSES FOR THIS CASE:)

• Malfunction of CAN bus system.
• Damaged harness or connector.
• Malfunction of the shift lever system.
• Malfunction of the shift lever ECU.
• Malfunction of the TC-SST-ECU.
• Malfunction of the ECM.

DIAGNOSTIC PROCEDURE

Required Special Tools:

• MB991958: Scan Tool (M.U.T.-III Sub Assembly)

• MB991824: V.C.I.
• MB991827: M.U.T.-III USB Cable
• MB991910: M.U.T.-III Main Harness A

CRUISE CONTROL

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ENGINE AND EMISSION CONTROL

17-45

CAUTION

If there is any problem in the CAN bus lines, an incorrect 
diagnostic trouble code (DTC) may be set. Prior to this 
diagnosis, diagnose the CAN bus lines (Refer to GROUP 
54C, Trouble code diagnosis 

P.54C-9

.)

STEP 1. Using scan tool MB991958, diagnose the CAN bus 
line.

CAUTION

To prevent damage to scan tool MB991958, always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958 to the data link connector 

(Refer to 

P.17-10

.)

(2) Turn the ignition switch to the "ON" position.
(3) Diagnose the CAN bus line (Refer to 

P.17-10

.)

Q: Is the check result satisfactory?

YES : Go to Step 2
NO :  Repair the CAN bus lines (Refer to GROUP 54C, 

Diagnosis − Can Bus Diagnostic Chart 

P.54C-15

.) 

Then go to Step 7.

STEP 2. Using scan tool MB991958, check the shift lever 
system data list item 01: Shift lever position.
(1) Connect scan tool MB991958 to the data link connector 

(Refer to 

P.17-10

.)

(2) Turn the ignition switch to the "ON" position.
(3) Set scan tool MB991958 to data reading mode for shift 

lever system (Refer to GROUP 22C, Diagnosis <Shift 
Lever> − Diagnostic Function 

P.22C-367

.)

• Item 01: Shift lever position.

Q: Is the switch operating properly?

YES : Go to Step 3.
NO :  Repair the shift lever system (Refer to GROUP 22C, 

Diagnosis <shift lever>, Diagnostic Trouble Code 
Procedures − No.P198E, 198F: Lever Position Switch 

P.22C-372

.) Then go to Step 7.

AC608435

Data link connector

MB991827

MB991824

MB991910

AB

CRUISE CONTROL

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ENGINE AND EMISSION CONTROL

17-46

STEP 3. Using scan tool MB991958, read the shift lever 
system DTC.
(1) Connect scan tool MB991958 to the data link connector 

(Refer to 

P.17-10

.)

(2) Turn the ignition switch to the "ON" position.
(3) Check for shift lever system DTC (Refer to GROUP 22C, 

Diagnosis <Shift Lever> − Diagnostic Function 

P.22C-367

.)

Q: Is any DTC set?

YES : Repair the shift lever system (Refer to GROUP 22C, 

Diagnosis <shift lever> − Diagnostic Trouble Code 

Char 

P.22C-370

.) Then go to Step 7.

NO :  Go to Step 4.

STEP 4. Using scan tool MB991958, read the TC-SST 
system DTC.
(1) Connect scan tool MB991958 to the data link connector 

(Refer to 

P.17-10

.)

(2) Turn the ignition switch to the "ON" position.
(3) Check for shift lever system DTC (Refer to GROUP 22C, 

Diagnosis <TC-SST> − Diagnostic Function 

P.22C-10

.)

Q: Is any DTC set?

YES : Repair the TC-SST system (Refer to GROUP 22C, 

Diagnosis <TC-SST> − Diagnostic Trouble Code 

Chart 

P.22C-15

.) Then go to Step 7.

NO :  Go to Step 5.

STEP 5. Using scan tool MB991958, check data list item 88: 
Neutral switch.
(1) Connect scan tool MB991958 to the data link connector 

(Refer to 

P.17-10

.)

(2) Turn the ignition switch to the "ON" position.
(3) Set scan tool MB991958 to data reading mode for cruise 

control system (Refer to 

P.17-10

.)

• Item 88: Neutral switch.

• When shift lever is at the "N" or "P" position, the dis-

play on scan tool MB991958 should be "ON".

• When shift lever is other than "N" or "P" position, the 

display on scan tool MB991958 should be "OFF".

Q: Is the switch operating properly?

YES : Go to Step 6.
NO :  Replace the ECM [Refer to GROUP 13A, Engine 

Control Module (ECM) 

P.13A-888

.] When the ECM is 

replaced, register the encrypted code (Refer to 
GROUP 42C, Diagnosis − ID Code Registration 

Judgment Table 

P.42C-9

.) Then go to Step 7.

 

 

 

 

 

 

 

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