Mitsubishi Lancer Evolution X. Manual - part 116

CRUISE CONTROL

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ENGINE AND EMISSION CONTROL

17-51

STEP 3. Using scan tool MB991958, check for MFI 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 MFI system DTC (Refer to GROUP 13A, 

Diagnosis − Diagnostic Function 

P.13A-9

.)

Q: Is any DTC set?

YES : Repair the MFI system (Refer to GROUP 13A, 

Diagnosis − Diagnostic Trouble Code Chart 

P.13A-48

.) Then go to Step 12.

NO :  Go to Step 6 <M/T.>
NO :  Go to Step 4 <TC-SST.>

STEP 4. Using scan tool MB991958, check for TC-SST 
system DTC <TC-SST.>
(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 TC-SST 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-370

.) Then go to Step 12.

NO :  Go to Step 5.

STEP 5. Using scan tool MB991958, check for shift lever 
system DTC <TC-SST.>
(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 

Chart 

P.22C-370

.) Then go to Step 12.

NO :  Go to Step 6.

CRUISE CONTROL

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ENGINE AND EMISSION CONTROL

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STEP 6. Check for cruise control system DTC.
(1) Disconnect the negative (−) battery terminal, to erase the 

DTC of the cruise control system.

(2) Connect the negative (−) battery terminal.

(3) Turn the ignition switch to the "ON" position, and press the 

"ON/OFF" switch to turn the cruise control system to ON 
(turn on the "CRUISE" indicator light.)

(4) After turning the cruise control system to ON, when 2 

minutes or more has elapsed without operating the cruise 
control switches.

(5) With the cruise control switches not operated, depress the 

brake pedal for several seconds, and then read the DTC of 
the cruise control system (Refer to 

P.17-10

.)

Q: Is any DTC set?

YES : Repair the cruise control system (Refer to 

P.17-13

, 

Diagnostic Trouble Code Chart.) Then go to Step 12.

NO :  Go to Step 7.

CRUISE CONTROL

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ENGINE AND EMISSION CONTROL

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STEP 7. Using scan tool MB991958, check data list item 75: 
Cancel switch, item 86: Main switch, item 91: Resume 
switch and item 92: Set 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 75: Cancel switch.

• When "CANCEL" switch is at the "ON" position, the 

display on scan tool MB991958 should be "ON".

• When "CANCEL" switch is at the "OFF" position, the 

display on scan tool MB991958 should be "OFF".

• Item 86: Main switch.

• When "ON/OFF" switch is at the "ON" position, the 

display on scan tool MB991958 should be "ON".

• When "ON/OFF" switch is at the "OFF" position, the 

display on scan tool MB991958 should be "OFF".

• Item 91: Resume switch.

• When "ACC/RES" switch is at the "ON" position, the 

display on scan tool MB991958 should be "ON".

• When "ACC/RES" switch is at the "OFF" position, 

the display on scan tool MB991958 should be 
"OFF".

• Item 92: Set switch.

• When "COAST/SET" switch is at the "ON" position, 

the display on scan tool MB991958 should be "ON".

• When "COAST/SET" switch is at the "OFF" position, 

the display on scan tool MB991958 should be 
"OFF".

Q: Is the switch operating properly?

YES : Go to Step 8.
NO :  Repair the cruise control switch system (Refer to 

P.17-14

, Diagnostic Trouble Code Procedures − DTC 

15: Cruise Control Switch System.) Then go to Step 
12.

CRUISE CONTROL

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ENGINE AND EMISSION CONTROL

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STEP 8. Using scan tool MB991958, check data list item 74: 
Brake light switch and item 89: Normally closed brake 
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 74: Brake light switch.

• When the brake pedal is depressed, the display on 

scan tool MB991958 should be "ON".

• When the brake pedal is released, the display on 

scan tool MB991958 should be "OFF".

• Item 89: Normally closed brake switch.

• When the brake pedal is depressed, the display on 

scan tool MB991958 should be "ON".

• When the brake pedal is released, the display on 

scan tool MB991958 should be "OFF".

Q: Is the switch operating properly?

YES : Go to Step 9 <M/T.>
YES : Go to Step 10 <TC-SST.>
NO :  Repair the stoplight switch system (Refer to 

P.17-27

, 

Diagnostic Trouble Code Procedures − DTC 22: 

Stoplight Switch System.) Then go to Step 12.

STEP 9. Using scan tool MB991958, check data list item 78: 
Clutch switch <M/T.>
(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 11.
NO :  Repair the clutch switch system (Refer to 

P.17-41

, 

Symptom Procedures − Inspection Procedure 2.) Then 

go to Step 12.