Mitsubishi Evolution X. Manual - part 1264

 

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Mitsubishi Evolution X. Manual - part 1264

 

 

AUTO A/C DIAGNOSIS

TSB Revision

HEATER, AIR CONDITIONING AND VENTILATION

55-7

DIAGNOSTIC FUNCTION

M1552019800176

HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)

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

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. Ensure that the ignition switch is at the "LOCK" (OFF) 

position.

2. Start up the personal computer.
3. Connect special tool MB991827 to special tool MB991824 

and the personal computer.

4. Connect special tool MB991910 to special tool MB991824
5. Connect special tool MB991910 to the data link connector.
6. Turn the power switch of special tool MB991824 to the "ON" 

position.
NOTE: When the special tool MB991824 is energized, the 
special tool MB991824 indicator light will be illuminated in a 
green color.

7. Start the M.U.T.-III system on the personal computer.
NOTE: Disconnecting the scan tool special tool MB991824 is 
the reverse of the connecting sequence, making sure that the 
ignition switch is at the "LOCK" (OFF) position.

HOW TO READ AND ERASE DIAGNOSTIC 
TROUBLE CODES

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

AC608435

Data link connector

MB991827

MB991824

MB991910

AB

AUTO A/C DIAGNOSIS

TSB Revision

HEATER, AIR CONDITIONING AND VENTILATION

55-8

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.
NOTE: If the battery voltage is low, diagnostic trouble codes will 
not be output. Check the battery if scan tool MB991958 does 
not display.
1. Connect the scan tool MB991958 to the data link connector.
2. Turn the ignition switch to the "ON" position.
3. Select "System select" from the start-up screen.
4. Select "From 2006 MY" of "Model Year." When the "Vehicle 

Information" is displayed, check the contents.

5. Select "AUTO A/C" from "System List," and press the "OK" 

button.
NOTE: When the "Loading Option Setup" list is displayed, 
check the applicable item.

6. Select "Diagnostic Trouble Code."
7. If a DTC is set, it is shown.
8. Choose "Erase DTCs" to erase the DTC.

HOW TO DIAGNOSE THE CAN BUS LINE

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

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.
2. Turn the ignition switch to the "ON" position.
3. Select "CAN bus diagnosis" from the start-up screen.
4. When the vehicle information is displayed, confirm that it 

matches the vehicle whose CAN bus lines will be 
diagnosed.

• If they match, go to step 8.

• If not, go to step 5.

5. Select "view vehicle information" button.
6. When the vehicle information is displayed, confirm again 

that it matches the vehicle which is diagnosed CAN bus line.

• If they match, go to step 8.

• If not, go to step 5.

7. Press the "OK" button.
8. When the options are displayed, choose the options (mark 

the check) and then select "OK".

AC608435

Data link connector

MB991827

MB991824

MB991910

AB

AC608435

Data link connector

MB991827

MB991824

MB991910

AB

AUTO A/C DIAGNOSIS

TSB Revision

HEATER, AIR CONDITIONING AND VENTILATION

55-9

DIAGNOSTIC TROUBLE CODE CHART

M1554004901110

CAUTION

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

NOTE: The diagnostic trouble codes marked by * are 
set from the ETACS-ECU.

Diagnostic 
trouble code No.

Diagnostic item

Reference 
page

B10C0

Interior temperature sensor system (short circuit)

P.55-10

B10C1

Interior temperature sensor system (open circuit)

P.55-10

B1000

Control panel communication error

P.55-13

B1003

Mode dial SW error

P.55-17

B1018

Temperature control dial SW error

P.55-21

B1021

Fan dial SW error

P.55-24

B1031

Fin thermo sensor system (short circuit)

P.55-24

B1032

Fin thermo sensor system (open circuit)

P.55-24

B1034*

Ambient air temperature sensor system (short circuit)

P.55-30

B1035*

Ambient air temperature sensor system (open circuit)

P.55-30

B1079

Refrigerant leaks

P.55-33

B2214

Control panel failure

P.55-37

B223B

Control panel improperly assembled

P.55-41

U1415

Coding not completed

P.55-41

U0019

Bus off (CAN1)

P.55-46

U0141

ETACS-ECU time-out

P.55-47

U0151

SRS-ECU time-out

P.55-50

U0154

Occupant classification-ECU time-out

P.55-52

U0155

Combination meter time-out

P.55-55

U0168

WCM time-out

P.55-58

U0184

Audio time-out

P.55-60

U0195

Satellite radio tuner time-out

P.55-63

U0197

Hands free module time-out

P.55-65

U0245

Audio visual navigation unit CAN timeout

P.55-68

AUTO A/C DIAGNOSIS

TSB Revision

HEATER, AIR CONDITIONING AND VENTILATION

55-10

DIAGNOSTIC TROUBLE CODE PROCEDURES

DTC B10C0, B10C1: Interior Temperature Sensor System

.

DTC SET CONDITION

• DTC B10C0 is set if there is a short circuit in the interior 

temperature sensor input circuit.

• DTC B10C1 is set if there is a defective connector connec-

tion, or if there is an open circuit in the harness.

.

TECHNICAL DESCRIPTION (COMMENT)

Current trouble

• The A/C-ECU, the interior temperature sensor, or connec-

tor(s) or wiring between the two may be defective.

Interior Temperature Sensor Circuit

A/C-ECU

JOINT
CONNECTOR (2)

INTERIOR
TEMPERATURE
SENSOR

AC708626

AC708950AP

C-06

Connectors: C-06, C-102

C-102 (B)

AC708951AI

C-22 (B)

Connector: C-22

 

 

 

 

 

 

 

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