Mitsubishi Outlander XL. Manual - part 1157

CAN Communication Circuit

ETACS-ECU

INTERFACE
CIRCUIT

INTERFACE
CIRCUIT

CAN DRIVE
CIRCUIT

HANDS FREE
MODULE

OCCUPANT 
CLASSIFICATION-
ECU

SATELLITE
RADIO 
TUNER

RADIO AND CD
PLAYER OR CD
CHANGER

NOTE

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

CAN
TRANSCEIVER
CIRCUIT

CAN BOX UNIT

JOINT CONNECTOR
(CAN1)

CONTROLLER AREA NETWORK (CAN)

54D-111

DIAGNOSIS

ZC6008760003

Connectors: C-13, C-17

C-13

C-17

ZC6008750010

Connector: C-103

 

FUNCTION
If the scan tool MB991958 cannot communicate with
the CAN box unit, this diagnosis result will be set.

TROUBLE JUDGEMENT CONDITIONS
If a communication flag is not set for the CAN box unit,
the ETACS-ECU determines that there is a failure.

TROUBLESHOOTING HINTS

｠

Malfunction  of  the  connector  [joint  connector
(CAN1),  CAN  box  unit  connector  improperly
connected]

｠

Malfunction  of  the  wiring  harness  [open  circuit
between the CAN box unit connector and the joint
connector (CAN1), power supply circuit to the CAN
box unit]

｠

Malfunction of the CAN box unit

DIAGNOSIS

Required Special Tools:

｠

MB991223: Harness Set

｠

MB992006: Extra Fine Probe

STEP 1. Check joint connector (CAN1) C-103, CAN box unit
connector C-13 and intermediate connector C-17 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.

The strand end of the twisted wire should be within 10 cm
(4 inches) from the connector. For details refer to P.54D-8.

Q:Are  joint  connector  (CAN1)  C-103,  CAN  box  unit

connector C-13 and intermediate connector C-17 in good

condition?

YES:

 Go to Step 2.

NO:

 Repair the damaged parts.

STEP 2. Check the wiring harness between joint connector
(CAN1) C-103 and CAN box unit connector C-13.

Strictly  observe  the  specified  wiring  harness  repair
procedure. For details refer to P.54D-8.

54D-112

CONTROLLER AREA NETWORK (CAN)

DIAGNOSIS

(1)

Disconnect joint connector (CAN1) C-103 and CAN box unit
connector C-301, and check the wiring harness.

(2)

Check the wiring harness between joint connector (CAN1)
C-103  (terminal  No.10)  and  CAN  box  unit  connector  C-13
(terminal No.8)

(3)

Check the wiring harness between joint connector (CAN1)
C-103  (terminal  No.23)  and  CAN  box  unit  connector  C-13
(terminal No.9)

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

C-103  and  CAN  box  unit  connector  C-13  in  good

condition?

YES:

 Check the power supply circuit of the CAN box unit.

Refer to Group 54B, Diagnosis <MMCS> P.54B-119.

NO:

 Repair the wiring harness between joint connector

(CAN1) C-103 and CAN box unit connector C-13.

DIAGNOSTIC ITEM 22: Diagnose when the scan tool cannot receive the data sent by
satellite radio tuner.

M15408300032USA0000010000

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.

CONTROLLER AREA NETWORK (CAN)

54D-113

DIAGNOSIS

CAN Communication Circuit

ETACS-ECU

INTERFACE
CIRCUIT

INTERFACE
CIRCUIT

CAN DRIVE
CIRCUIT

HANDS FREE
MODULE

OCCUPANT 
CLASSIFICATION-
ECU

SATELLITE
RADIO 
TUNER

RADIO AND CD
PLAYER OR CD
CHANGER

NOTE

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

CAN
TRANSCEIVER
CIRCUIT

CAN BOX UNIT

JOINT CONNECTOR
(CAN1)

54D-114

CONTROLLER AREA NETWORK (CAN)

DIAGNOSIS