Mitsubishi Evolution X. Manual - part 599

 

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Mitsubishi Evolution X. Manual - part 599

 

 

DIAGNOSIS

TSB Revision

WIRELESS CONTROL MODULE (WCM)

42C-13

NOTE: 

*

: Change to continuous illumination after 

flashing for about 1 minute.

TPMS 
failure 
warning

ID not 
stored

The TPMS 
transmitter ID 
is not 
registered in 
the WCM.

Flashes 

*

Symbol and 
"SERVICE 
REQUIRED" is 
displayed.

ID is registered 
normally.

Defective 
EEPROM

Abnormality 
of data in the 
EEPROM of 
the WCM is 
detected.

Data in the EEPROM 
of the WCM is 
checked to be 
normal.

Problem in 
signal 
reception

The signals 
from TPMS 
transmitters 
cannot be 
received 
while driving 
for about 20 
minutes.

The signal from the 
TPMS transmitter 
that was warned is 
received. 

Defective 
sensor

The sensor 
failure signal 
is received 
from the 
TPMS 
transmitter.

A normal signal is 
received from the 
TPMS transmitter 
that was warned.

The 
battery 
voltage of 
the TPMS 
transmitter 
is low.

The 
reception 
problem 
warning is 
activated 
because of 
the low 
battery 
voltage of the 
TPMS 
transmitter.

The signal of normal 
battery voltage is 
received from the 
TPMS transmitter 
that was warned.

Vehicle 
speed 
input 
problem

The vehicle 
speed is not 
input.

The vehicle speed is 
input.

Abnormal 
vehicle 
speed 
value

The vehicle 
speed value 
is abnormal.

The normal vehicle 
speed value is 
received.

Display 
contents

Item

State

Warning operations

Warning 
cancellation 
conditions (Cancels 
warning operations 
when one of the 
conditions met)

TPMS 
warning light

Multi 
information 
display

AC610120

b

AB

SERVICE 
          REQUIRED

DIAGNOSIS

TSB Revision

WIRELESS CONTROL MODULE (WCM)

42C-14

DIAGNOSTIC TROUBLE CODE CHART

M1427500200198

CAUTION

During diagnosis, a DTC associated with other system may be set when the ignition switch is turned 
on with connector(s) disconnected. On completion, confirm all systems for DTC(s). If DTC(s) are set, 
erase them all.

Diagnostic trouble code 
number

Diagnostic item

Reference 
page

B1731

Engine control module communication timeout

P.42C-16

B1761

VIN code not programmed

P.42C-18

B1A08

Keyless/KOS key1 performance

P.42C-19

B1A09

Keyless/KOS key2 performance

B1A0A

Keyless/KOS key3 performance

B1A0B

Keyless/KOS key4 performance

B1A0C

Keyless key 5 performance

B1A0D

Keyless key 6 performance

B1A0E

Keyless key 7 performance

B1A0F

Keyless key 8 performance

B1A10

Keyless/KOS key 1 low battery

P.42C-21

B1A11

Keyless/KOS key 2 low battery

B1A12

Keyless/KOS key 3 low battery

B1A13

Keyless/KOS key 4 low battery

B1A14

Keyless key 5 low battery

B1A15

Keyless key 6 low battery

B1A16

Keyless key 7 low battery

B1A17

Keyless key 8 low battery

B1A24

Key ID not registered

P.42C-22

B1A25

Key ID unmatched

P.42C-23

B1A28

Engine control module authenticate error

P.42C-25

B1A35

Transponder read error

P.42C-27

B2101

IG SW start POS.circuit low

P.42C-30

B2102

IG SW start POS.circuit high

B2204

Coding data mismatch

P.42C-33

B2206

VIN code mismatch

P.42C-35

B2352

Antenna fail

P.42C-37

B2401

Keyless/KOS key ID not register

P.42C-22

B2415

RA module power voltage

P.42C-39

B2416

ECU internal error

P.42C-44

C1608

EEPROM error

P.42C-45

C1900

No registration

P.42B-131

C1901

Vehicle speed information abnormality

P.42B-132

DIAGNOSIS

TSB Revision

WIRELESS CONTROL MODULE (WCM)

42C-15

C1910

Transmitter low battery voltage abnormality 1

P.42C-49

C1920

Transmitter low battery voltage abnormality 2

C1930

Transmitter low battery voltage abnormality 3

C1940

Transmitter low battery voltage abnormality 4

C1911

Reception abnormality 1

C1921

Reception abnormality 2

C1931

Reception abnormality 3

C1941

Reception abnormality 4

C1913

Acceleration sensor abnormality 1

P.42C-56

C1923

Acceleration sensor abnormality 2

C1933

Acceleration sensor abnormality 3

C1943

Acceleration sensor abnormality 4

C1914

Pressure sensor abnormality 1

C1924

Pressure sensor abnormality 2

C1934

Pressure sensor abnormality 3

C1944

Pressure sensor abnormality 4

C1912

Tire inflation pressure warning 1

P.42B-144

C1922

Tire inflation pressure warning 2

C1932

Tire inflation pressure warning 3

C1942

Tire inflation pressure warning 4

C1915

Transmitter OFF mode 1

P.42B-147

C1925

Transmitter OFF mode 2

C1935

Transmitter OFF mode 3

C1945

Transmitter OFF mode 4

U0019

Bus off (CAN-B)

P.42C-62

U0141

ETACS-ECU CAN timeout

P.42C-64

U0151

SRS-ECU CAN timeout

P.42C-65

U0154

Occupant classification-ECU CAN timeout

P.42C-67

U0155

Combination meter CAN timeout

P.42C-68

U0164

A/C-ECU CAN timeout

P.42C-70

U0184

Audio CAN timeout

P.42C-71

U0195

Satellite radio tuner CAN timeout

P.42C-73

U0197

Hands free module CAN timeout

P.42C-74

U0245

Audio visual navigation unit CAN timeout

P.42C-76

U1412

Implausible vehicle speed signal received

P.42B-163

U1415

Coding not completed/Data fail

P.42C-79

U1417

Implausible coding data

P.42C-80

Diagnostic trouble code 
number

Diagnostic item

Reference 
page

DIAGNOSIS

TSB Revision

WIRELESS CONTROL MODULE (WCM)

42C-16

DIAGNOSTIC TROUBLE CODE PROCEDURES

DTC B1731: Engine control module communication timeout

CAUTION

• When DTC B1731 is set, be sure to diagnose 

the CAN bus line.

• When replacing the ECU, always check that 

the communication circuit is normal.

.

DTC SET CONDITION

WCM checks that the engine control module data 
has been received via the CAN bus lines, and if not, 
sets DTC No. B1731.

.

TECHNICAL DESCRIPTION (COMMENT)

If no data [ETACS transmits engine random number 
data to WCM via the CAN bus lines] is received from 
the engine control module via the CAN bus lines 
when the ignition switch is turned to ON position, it is 
judged as abnormal.

.

TROUBLESHOOTING HINTS

• Malfunction of CAN bus line

• Malfunction of WCM

• Malfunction of engine control module

DIAGNOSIS

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. 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 
connecting or disconnecting scan tool (MB991958).
(1) Connect scan tool MB991958 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Diagnose the CAN bus line.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the CAN bus line found to be normal?

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

Diagnosis 

P.54C-14

).

AC608435

Data link connector

MB991827

MB991824

MB991910

AB

 

 

 

 

 

 

 

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