Mitsubishi Outlander GS45X. Manual — part 1296

DIAGNOSIS

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CONTROLLER AREA NETWORK (CAN)

54C-129

.

FUNCTION

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

.

TROUBLE JUDGMENT CONDITIONS

If a communication flag is not set for the CAN box
unit, the ETACS-ECU determines that there is a fail-
ure.

.

TROUBLESHOOTING HINTS

• Malfunction of the connector [joint connector

(CAN1), CAN box unit connector improperly con-
nected]

• 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.

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, CAN box unit

connector C-13 and intermediate connector C-17 in
good condition?
YES : Go to Step 2.
NO : Repair the damaged parts.

AC901076 AN

Connectors: C-13, C-17

C-13

C-17

AC901075AX

Connector: C-103

DIAGNOSIS

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CONTROLLER AREA NETWORK (CAN)

54C-130

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

connector C-13, 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)

OK: Continuity exists (2 ohms or less)

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

C-103 (terminal No.23) and CAN box unit connector C-13
(terminal No.9)

OK: Continuity exists (2 ohms or less)

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 54A, MMCS

− Diagnosis

P.54A-486

.

NO : Repair the wiring harness between joint connector

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

AC709707

AC709707 MM

Harness side: C-103

Harness side: C-13

Test
harness

Test
harness

AC709707 MN

Harness side: C-103

Harness side: C-13

Test
harness

Test
harness

DIAGNOSIS

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CONTROLLER AREA NETWORK (CAN)

54C-131

DIAGNOSTIC ITEM 23: Diagnose when the scan tool cannot receive the data sent by satellite radio
tuner <vehicles with satellite radio>.

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-132

.

FUNCTION

If the scan tool MB991958 cannot communicate with
the satellite radio tuner, this diagnosis result will be
set.

.

TROUBLE JUDGMENT CONDITIONS

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

.

TROUBLESHOOTING HINTS

• Malfunction of the connector [joint connector

(CAN1), satellite radio tuner connector improp-
erly connected]

• Malfunction of the wiring harness [open circuit

between the satellite radio tuner connector and
the joint connector (CAN1), power supply circuit
to the satellite radio tuner]

• Malfunction of the satellite radio tuner

DIAGNOSIS

Required Special Tools:

• MB991223: Harness Set

• MB992006: Extra Fine Probe

STEP 1. Check joint connector (CAN1) C-103 and satellite
radio tuner connector C-111 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 satellite radio

tuner connector C-111 in good condition?
YES : Go to Step 2.
NO : Repair the damaged parts.

AC901075AX

Connector: C-103

AC901076AO

Connector: C-111