Mitsubishi Evolution X. Manual - part 1128

 

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Mitsubishi Evolution X. Manual - part 1128

 

 

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-147

STEP 2. Check the wiring harness between joint connector 
(CAN1) C-105 and satellite radio tuner connector C-18 for 
open circuit.

CAUTION

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

P.54C-7

.

(1) Disconnect joint connector (CAN1) C-105 and satellite radio 

tuner connector C-18, and check the wiring harness.

(2) Check the wiring harness between joint connector (CAN1) 

C-105 (terminal 2) and satellite radio tuner connector C-18 
(terminal 4)

OK: Continuity exists (2 

 or less)

(3) Check the wiring harness between joint connector (CAN1) 

C-105 (terminal 13) and satellite radio tuner connector C-18 
(terminal 11)

OK: Continuity exists (2 

 or less)

Q: Is the wiring harness between joint connector (CAN1) 

C-105 and satellite radio tuner connector C-18 in good 
condition?
YES : 
Check the power supply circuit of the satellite radio 

tuner. Refer to GROUP 54A, Diagnosis <Satellite 
radio tuner> 

P.54A-555

.

NO :  Repair the wiring harness between joint connector 

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

AC709707 CJ

Harness side: C-105

Harness side: C-18

TEST 
HARNESS

TEST 
HARNESS

AC709707 CK

Harness side: C-105

Harness side: C-18

TEST 
HARNESS

TEST HARNESS

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-148

DIAGNOSTIC ITEM 23: Diagnose when the scan tool cannot receive the data sent by hands free 

module.

CAUTION

When servicing a CAN bus line, ground yourself by touching a metal object such as an unpainted 

water pipe. If you fail to do so, a component connected to the CAN bus line may be damaged.

CAN-B Communication Circuit

ETACS-ECU

INTERFACE
CIRCUIT

INTERFACE
CIRCUIT

CAN DRIVE
CIRCUIT

HANDS FREE
MODULE

OCCUPANT 
CLASSIFICATION-
ECU

SATELLITE
RADIO 
TUNER

RADIO AND CD
PLAYER

NOTE

VEHICLES WITHOUT MITSUBISHI MULTI-COMMUNICATION SYSTEM (MMCS)
VEHICLES WITH MITSUBISHI MULTI-COMMUNICATION SYSTEM (MMCS)

CAN
TRANSCEIVER
CIRCUIT

CAN BOX UNIT

JOINT CONNECTOR
(CAN1)

FRONT SEAT
ASSEMBLY (LH)

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-149

.

FUNCTION

If the scan tool MB991958 cannot communicate with 
the hands free module, this diagnosis result will be 
set.

.

TROUBLE JUDGEMENT CONDITIONS

If a communication flag is not set for the hands free 
module, the ETACS-ECU determines that there is a 
failure.

.

TROUBLESHOOTING HINTS

• Malfunction of the connector [joint connector 

(CAN1), hands free module connector improperly 
connected]

• Malfunction of the wiring harness [open circuit 

between the hands free module connector and 
the joint connector (CAN1), power supply circuit 
to the hands free module]

• Malfunction of the hands free module

DIAGNOSIS

Required Special Tools:

• MB991223: Harness Set

• MB992006: Extra Fine Probe

STEP 1. Check joint connector (CAN1) C-105 and hands 
free module connector C-11 for loose, corroded or 
damaged terminals, or terminals pushed back in the 
connector.

CAUTION

The strand end of the twisted wire should be within 10 cm 
(4 inches) from the connector. For details refer to 

P.54C-7

.

Q: Are joint connector (CAN1) C-105 and hands free 

module connector C-11 in good condition?
YES : 
Go to Step 2.
NO :  Repair the damaged parts.

AC708951BT

Connector: C-11

AC708950

Connector: C-105

BL

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-150

STEP 2. Check the wiring harness between joint connector 
(CAN1) C-105 and hands free module connector C-11 for 
open circuit.

CAUTION

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

P.54C-7

.

(1) Disconnect joint connector (CAN1) C-105 and hands free 

module connector C-11, and check the wiring harness.

(2) Check the wiring harness between joint connector (CAN1) 

C-105 (terminal 10) and hands free module connector C-11 
(terminal 4)

OK: Continuity exists (2 

 or less)

(3) Check the wiring harness between joint connector (CAN1) 

C-105 (terminal 23) and hands free module connector C-11 
(terminal 16)

OK: Continuity exists (2 

 or less)

Q: Is the wiring harness between joint connector (CAN1) 

C-105 and hands free module connector C-11 in good 
condition?
YES : 
Check the power supply circuit of the hands free 

module. Refer to GROUP 54A, Hands-free cellular 
phone system 

− Diagnosis <Hands-free cellular phone 

system> 

P.54A-488

.

NO :  Repair the wiring harness between joint connector 

(CAN1) C-105 and hands free module connector 
C-11.

AC709707 CL

Harness side: C-105

Harness side: C-11

TEST HARNESS

TEST 
HARNESS

AC709707 CM

Harness side: C-105

Harness side: C-11

TEST HARNESS

TEST 
HARNESS

 

 

 

 

 

 

 

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