Mitsubishi Evolution X. Manual - part 1150

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-235

(4) Diagnose CAN bus lines, and check if the scan tool 

MB991958 screen is as shown in the figure.

OK: The display of the scan tool MB991958 is as 
shown in the figure.

Q: Does scan tool MB991958 screen correspond to the 

illustration?
YES : Repair the wiring harness between joint connector 

(CAN1) C-105 and radio and CD player or CD 
changer connector C-107.

NO :  Check radio and CD player or CD changer connector 

C-107, and repair if necessary. If the radio and CD 
player or CD changer connector is in good condition, 
replace the radio and CD player or CD changer.

STEP 56. Using scan tool MB991958, diagnose the CAN 
bus line. (checking the CAN box unit for internal failure)

CAUTION

Strictly observe the specified wiring harness repair proce-
dure. For details refer to 

P.54C-7

.

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) Disconnect CAN box unit connector C-15.

AC709542 AD

: Red section on screen

M.U.T.

J/C (3)

J/C (2)

ASC

ENGINE

ETACS

<M/T>

SAS

S-AWC

J/C (1)

KOS/WCM

SRS

A/C

AUDIO

MMCS

Sat Radio

HFM

OCM

METER

AC709543 AD

: Red section on screen

M.U.T.

J/C (3)

J/C (2)

ASC

LEVER

ETACS

<TC-SST>

SAS

S-AWC

J/C (4)

TC-SST

ENGINE

J/C (1)

KOS/WCM

SRS

A/C

AUDIO

MMCS

Sat Radio

HFM

OCM

METER

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-236

(2) Connect scan tool MB991958 to the data link connector.
(3) Turn the ignition switch to the "ON" position.

(4) Diagnose CAN bus lines, and check if the scan tool 

MB991958 screen is as shown in the figure.

OK: The display of the scan tool MB991958 is as 
shown in the figure.

Q: Does scan tool MB991958 screen correspond to the 

illustration?
YES : Repair the wiring harness between joint connector 

(CAN1) C-105 and CAN box unit connector C-15.

NO :  Check CAN box unit connector C-15, and repair if 

necessary. If the CAN box unit connector is in good 
condition, replace the CAN box unit.

AC608435

Data link connector

MB991827

MB991824

MB991910

AB

AC709542 AD

: Red section on screen

M.U.T.

J/C (3)

J/C (2)

ASC

ENGINE

ETACS

<M/T>

SAS

S-AWC

J/C (1)

KOS/WCM

SRS

A/C

AUDIO

MMCS

Sat Radio

HFM

OCM

METER

AC709543 AD

: Red section on screen

M.U.T.

J/C (3)

J/C (2)

ASC

LEVER

ETACS

<TC-SST>

SAS

S-AWC

J/C (4)

TC-SST

ENGINE

J/C (1)

KOS/WCM

SRS

A/C

AUDIO

MMCS

Sat Radio

HFM

OCM

METER

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-237

STEP 57. Using scan tool MB991958, diagnose the CAN 
bus line. (checking the satellite radio tuner for internal 
failure)

CAUTION

Strictly observe the specified wiring harness repair proce-
dure. For details refer to 

P.54C-7

.

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) Disconnect satellite radio tuner connector C-18.
(2) Connect scan tool MB991958 to the data link connector.
(3) Turn the ignition switch to the "ON" position.

AC608435

Data link connector

MB991827

MB991824

MB991910

AB

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-238

(4) Diagnose CAN bus lines, and check if the scan tool 

MB991958 screen is as shown in the figure.

OK: The display of the scan tool MB991958 is as 
shown in the figure.

Q: Does scan tool MB991958 screen correspond to the 

illustration?
YES : Repair the wiring harness between joint connector 

(CAN1) C-105 and satellite radio tuner connector 
C-18.

NO :  Check satellite radio tuner connector C-18, and repair 

if necessary. If the satellite radio tuner connector is in 
good condition, replace the satellite radio tuner.

AC709542 AD

: Red section on screen

M.U.T.

J/C (3)

J/C (2)

ASC

ENGINE

ETACS

<M/T>

SAS

S-AWC

J/C (1)

KOS/WCM

SRS

A/C

AUDIO

MMCS

Sat Radio

HFM

OCM

METER

AC709543 AD

: Red section on screen

M.U.T.

J/C (3)

J/C (2)

ASC

LEVER

ETACS

<TC-SST>

SAS

S-AWC

J/C (4)

TC-SST

ENGINE

J/C (1)

KOS/WCM

SRS

A/C

AUDIO

MMCS

Sat Radio

HFM

OCM

METER