Mitsubishi Lancer Evolution X. Manual - part 105

ENGINE CONTROL

TSB Revision

ENGINE AND EMISSION CONTROL

17-7

SPECIAL TOOL

M1171000600216

Tool

Tool number and name Supersession

Application

MB991958

a: MB991824
b: MB991827
c: MB991910
d: MB991911
e: MB991914
f: MB991825
g: MB991826

Scan tool (M.U.T.-III sub 
assembly)

a: Vehicle 

communication 
interface (V. C. I.) 

b: M.U.T.-III USB cable
c: M.U.T.-III main 

harness A (Vehicles 
with CAN 
communication 
system)

d: M.U.T.-III main 

harness B (Vehicles 
without CAN 
communication 
system)

e: M.U.T.-III main 

harness C (for 
Chrysler models only)

f: M.U.T.-III 

measurement adapter

g: M.U.T.-III trigger 

harness

MB991824-KIT
NOTE: g: MB991826 
M.U.T.-III Trigger 
Harness is not 
necessary when 
pushing V.C.I. 
ENTER key.

CAUTION

For vehicles with CAN 
communication, use 
M.U.T.-III main harness A to 
send simulated vehicle 
speed. If you connect 
M.U.T.-III main harness B 
instead, the CAN 
communication does not 
function correctly.
Checking diagnostic trouble 
code (DTC)

MB991910

MB991826

MB991958

MB991911

MB991914

MB991824

MB991827

MB991825

Do not use

a

b

c

d

e

f

g

Do not use

ENGINE CONTROL

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ENGINE AND EMISSION CONTROL

17-8

ACCELERATOR PEDAL

REMOVAL AND INSTALLATION

M1171003001108

Pre-removal and post-installation operation
• Instrument Panel Cover Lower Removal and Installation 

(Refer to GROUP 52A, Instrument Lower Panel 

P.52A-9

). 

<MR>

AC806114AB

1

3

2

15 ± 3 N·m
11 ± 2 ft-lb

Removal steps 

1.

Accelerator pedal pad

2.

Accelerator pedal position sensor 
connector

3.

Accelerator pedal assembly

Removal steps (Continued)

CRUISE CONTROL

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ENGINE AND EMISSION CONTROL

17-9

CRUISE CONTROL

GENERAL INFORMATION

M1172000101392

By using the cruise control system, the driver can 
drive at preferred speeds in a range of approximately 
40 to 200 km/h (25 to 125 mph) without depressing 
the accelerator pedal.

For this cruise control system, in conjunction with the 
electronic throttle valve control system, the engine 
control module (ECM) electronically controls the 
throttle valve.

CONSTRUCTION DIAGRAM

AC902079

AC708696

AC708692

CANCEL

ACC

RES

ON

OFF

COAST

SET

AC708694

AC708695

AC902078

Cruise control switch

Data link connector

Hood
lock
release
handle

AB

Clutch switch <M/T>

Stoplight switch

Accelerator pedal
(Built-in accelerator 
pedal position sensor)

Engine control
module (ECM)

"CRUISE" indicator light

Transaxle assembly
[Built-in twin clutch
-sportronic shift
transmission-ECU
(TC-SST-ECU)]
<TC-SST>

Throttle body
(Built-in throttle position
sensor and throttle
actuator control motor)

Hydraulic unit Assembly
(Built-in ASC-ECU)

Shift lever assembly
(Built-in shift lever ECU)
<TC-SST>

Steering wheel

CRUISE CONTROL

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ENGINE AND EMISSION CONTROL

17-10

CRUISE CONTROL SYSTEM DIAGNOSIS

INTRODUCTION TO CRUISE CONTROL SYSTEM DIAGNOSIS

M1172003300358

The cruise control system allows driving without 
stepping on the accelerator pedal by setting a ran-
dom speed between approximately 40 km/h (25 
mph) and 200 km/h (125 mph). Malfunctions in this 
system can be investigated by the following meth-
ods.

CRUISE CONTROL SYSTEM 
DIAGNOSTIC TROUBLE CODES

The cruise control system consists of the ECM, con-
trol switches and sensors. The control switches and 
sensors monitor the state of the vehicle. The ECM 
controls the throttle valve opening angle in the throt-
tle body in accordance with the input signals from the 
switches and sensors. If the ECM detects a malfunc-
tion on any of those components, the ECM estimates 
where the problem may be occurring, and will set a 
diagnostic trouble code (DTC). DTCs cover the 
cruise control switch, stoplight switch and ECM.

DIAGNOSTIC TROUBLESHOOTING STRATEGY

M1172002000826

Use these steps to plan your diagnostic strategy. If 
you follow them carefully, you will check most of the 
possible causes of a cruise control system malfunc-
tion.
1. Gather information from the customer.
2. Verify that the condition described by the 

customer exists.

3. Check the vehicle for any cruise control system 

DTC (Refer to 

P.17-10

, Diagnostic Function − How 

to Read Diagnostic Trouble Codes).

4. If you cannot verify the condition and there are no 

cruise control system DTCs, the malfunction may 
be intermittent (Refer to GROUP 00, How to Use 
Troubleshooting/Inspection Service Points − How 

to Cope with Intermittent Malfunctions 

P.00-15

).

5. If you can verify the condition but there are no 

cruise control system DTCs, find the fault (Refer 
to 

P.17-38

, Symptom Chart).

6. If there is an cruise control system DTC, record 

the number of the code, then erase the code 
(Refer to 

P.17-10

, Diagnostic Function − How to 

Erase Diagnostic Trouble Codes).

7. Re-create the cruise control system DTC set 

conditions to see if the same cruise control 
system DTC will set again (Refer to 

P.17-10

, 

Diagnostic Function − How to Read Diagnostic 

Trouble Codes).

• If the same cruise control system DTC sets 

again, perform the diagnostic procedures for the 
set code (Refer to 

P.17-13

, Diagnostic Trouble 

Code Chart).

DIAGNOSTIC FUNCTION

M1172004900461

HOW TO READ DIAGNOSTIC TROUBLE CODES

1. Turn the ignition switch to the "ON" position while press the 

"COAST/SET" switch. Then, within one second, release the 
"COAST/SET" switch and press the "ACC/RES" switch.

CANCEL

ACC

RES

ON

OFF

COAST

SET

AC708694 AB

Cruise control switch

"ACC/RES"
switch

"COAST/SET"
switch