Mitsubishi Outlander GS45X. Manual — part 1295

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-125

DIAGNOSTIC ITEM 21: Diagnose when the scan tool cannot receive the data sent by radio and CD
player <vehicles with radio and CD player> or radio and CD changer <vehicles with radio and CD
changer>.

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 Communication Circuit

ETACS-ECU

INTERFACE
CIRCUIT

INTERFACE
CIRCUIT

CAN DRIVE
CIRCUIT

FRONT SEAT
ASSEMBLY (LH)

OCCUPANT
CLASSIFICATION-
ECU

SATELLITE
RADIO
TUNER

RADIO AND CD
PLAYER OR CD
CHANGER

CAN
TRANSCEIVER
CIRCUIT

CAN BOX UNIT

JOINT CONNECTOR
(CAN1)

NOTE

:VEHICLES WITH RADIO AND
CD PLAYER OR CD CHANGER
:VEHICLES WITH MMCS

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-126

.

FUNCTION

If the scan tool MB991958 cannot communicate with
the radio and CD player or radio and CD changer,
this diagnosis result will be set.

.

TROUBLE JUDGMENT CONDITIONS

If a communication flag is not set for the radio and
CD player or radio and CD changer, the ETACS-ECU
determines that there is a failure.

.

TROUBLESHOOTING HINTS

• Malfunction of the connector [joint connector

(CAN1), radio and CD player or radio and CD
changer connector improperly connected]

• Malfunction of the wiring harness [open circuit

between the radio and CD player or radio and CD
changer connector and the joint connector
(CAN1), power supply circuit to the radio and CD
player or radio and CD changer]

• Malfunction of the radio and CD player or radio

and CD changer

DIAGNOSIS

Required Special Tools:

• MB991223: Harness Set

• MB992006: Extra Fine Probe

STEP 1. Check joint connector (CAN1) C-103 and radio and
CD player or radio and CD changer connector C-16 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-103 and radio and CD

player or radio and CD changer connector C-16 in good
condition?
YES : Go to Step 2.
NO : Repair the damaged parts.

AC901076AM

Connector: C-16

C-16

AC901075AX

Connector: C-103

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-127

STEP 2. Check the wiring harness between joint connector
(CAN1) C-103 and radio and CD player or radio and CD
changer connector C-16 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-103 and radio and CD

player or radio and CD changer connector C-16, and check
the wiring harness.

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

C-103 (terminal No.10) and radio and CD player or radio
and CD changer connector C-16 (terminal No.23)

OK: Continuity exists (2 ohms or less)

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

C-103 (terminal No.23) and radio and CD player or radio
and CD changer connector C-16 (terminal No.33)

OK: Continuity exists (2 ohms or less)

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

C-103 and radio and CD player or radio and CD changer
connector C-16 in good condition?
YES : Check the power supply circuit of the radio and CD

player or radio and CD changer. Refer to GROUP
54A, Radio and CD player

− Troubleshooting

P.54A-363

.

NO : Repair the wiring harness between joint connector

(CAN1) C-103 and radio and CD player or radio and
CD changer connector C-16.

AC709707

AC709707 MK

Harness side: C-103

Test
harness

Harness side: C-16

Test harness

AC709707 ML

Harness side: C-103

Harness side: C-16

Test
harness

Test harness

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-128

DIAGNOSTIC ITEM 22: Diagnose when the scan tool cannot receive the data sent by CAN box unit
<vehicles with MMCS>.

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 Communication Circuit

ETACS-ECU

INTERFACE
CIRCUIT

INTERFACE
CIRCUIT

CAN DRIVE
CIRCUIT

FRONT SEAT
ASSEMBLY (LH)

OCCUPANT
CLASSIFICATION-
ECU

SATELLITE
RADIO
TUNER

RADIO AND CD
PLAYER OR CD
CHANGER

CAN
TRANSCEIVER
CIRCUIT

CAN BOX UNIT

JOINT CONNECTOR
(CAN1)

NOTE

:VEHICLES WITH RADIO AND
CD PLAYER OR CD CHANGER
:VEHICLES WITH MMCS