Mitsubishi Lancer Evolution X. Manual - part 18

 

  Index      Mitsubishi     Mitsubishi Lancer Evolution X GS41EVO - service repair manual 2008 year

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  16  17  18  19   ..

 

 

Mitsubishi Lancer Evolution X. Manual - part 18

 

 

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-97

DIAGNOSTIC ITEM 6: Diagnose when the scan tool cannot receive the data sent by AWC-ECU.

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-C Communication Circuit <M/T>

ETACS-ECU

INTERFACE 
CIRCUIT

CAN DRIVE 
CIRCUIT

JOINT CONNECTOR 
(CAN2)

JOINT CONNECTOR 
(CAN3)

ASC-ECU

STEERING 
WHEEL SENSOR

AWC-ECU

ENGINE CONTROL 
MODULE

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-98

TRANSAXLE 
ASSEMBLY

ENGINE CONTROL MODULE

CAN-C Communication Circuit <TC-SST>

ETACS-ECU

INTERFACE 
CIRCUIT

CAN DRIVE 
CIRCUIT

JOINT CONNECTOR 
(CAN2)

JOINT CONNECTOR 
(CAN3)

JOINT CONNECTOR 
(CAN4)

SHIFT LEVER

ASC-ECU

STEERING 
WHEEL SENSOR

AWC-ECU

NOTE

: THE TERMINAL NUMBERS DESCRIBED 

IN THE CIRCUIT DIAGRAM AGREE WITH 
THE NUMBERS MARKED ON THE 
TRANSAXLE ASSEMBLY CONNECTOR AND 
HARNESS SIDE CONNECTOR.

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-99

.

FUNCTION

If the scan tool MB991958 cannot communicate with 
the AWC-ECU, this diagnosis result will be set.

.

TROUBLE JUDGMENT CONDITIONS

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

.

TROUBLESHOOTING HINTS

• Malfunction of the connector [joint connector 

(CAN2), AWC-ECU connector or intermediate 
connector failed improperly connected]

• Malfunction of the wiring harness [open circuit 

between the AWC-ECU and the joint connector 
(CAN2), power supply circuit to the AWC-ECU]

• Malfunction of the AWC-ECU

DIAGNOSIS

Required Special Tools:

• MB991223: Harness Set
• MB992006: Extra Fine Probe

STEP 1. Check joint connector (CAN2) C-104 and 
AWC-ECU connector C-46 and intermediate connector 
C-41 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 (CAN2) C-104 and AWC-ECU 

connector C-46 and intermediate connector C-41 in 
good condition?
YES : 
Go to Step 2.
NO :  Repair the damaged parts.

AC708950BW

C-41

C-46

C-104

Connectors: C-41, C-46, C-104

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-100

STEP 2. Check the wiring harness between joint connector 
(CAN2) C-104 and AWC-ECU connector C-46 for open 
circuit.

CAUTION

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

P.54C-7

.

(1) Disconnect joint connector (CAN2) C-104 and AWC-ECU 

connector C-46, and check the wiring harness.

(2) Check the wiring harness between joint connector (CAN2) 

C-104 (terminal 5) and AWC-ECU connector C-46 (terminal 
4)

OK: Continuity exists (2 Ω or less)

(3) Check the wiring harness between joint connector (CAN2) 

C-104 (terminal 16) and AWC-ECU connector C-46 
(terminal 5)

OK: Continuity exists (2 Ω or less)

Q: Is the wiring harness between joint connector (CAN2) 

C-104 and AWC-ECU connector C-46 in good condition?
YES : 
Check the power supply circuit of the AWC-ECU. 

Refer to GROUP 22A, Troubleshooting 

P.22A-12

 

<S-AWC>.

NO :  Repair the wiring harness between joint connector 

(CAN2) C-104 and AWC-ECU connector C-46.

AC709707

AC709707

Harness side: C-104

BH

TEST HARNESS

Harness side: C-46

TEST HARNESS

AC709707

Harness side: C-104

BI

Harness side: C-46

TEST HARNESS

TEST HARNESS

 

 

 

 

 

 

 

Content   ..  16  17  18  19   ..