Mitsubishi Outlander GS45X. Manual - part 1297

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-133

STEP 2. Check the wiring harness between joint connector 
(CAN1) C-103 and satellite radio tuner connector C-111 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 satellite radio 

tuner connector C-111, and check the wiring harness.

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

C-103 (terminal No.3) and satellite radio tuner connector 
C-111 (terminal No.4)

OK: Continuity exists (2 ohms or less)

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

C-103 (terminal No.14) and satellite radio tuner connector 
C-111 (terminal No.11)

OK: Continuity exists (2 ohms or less)

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

C-103 and satellite radio tuner connector C-111 in good 
condition?
YES : Check the power supply circuit of the satellite radio 

tuner. Refer to GROUP 54A, Satellite Radio Tuner 

− 

Diagnosis 

P.54A-675

.

NO :  Repair the wiring harness between joint connector 

(CAN1) C-103 and satellite radio tuner connector 
C-111.

AC709707 NS

Harness side: C-103

Harness side: C-111

Test 
harness

Test 
harness

AC709707 NT

Harness side: C-103

Harness side: C-111

Test 
harness

Test harness

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-134

DIAGNOSTIC ITEM 24: Short to power supply or ground in both CAN_H and CAN_L lines of the 
CAN-B bus lines.

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 con-
nected 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-135

.

FUNCTION

If a short to power supply or ground is present in both 
CAN_H and CAN_L lines, this diagnosis result will be 
set.

.

TROUBLE JUDGMENT CONDITIONS

If a communication flag is set for the ETACS-ECU, 
no communication is present through the CAN-B 
line, and diagnostic trouble code U0019 is set, the 
ETACS-ECU determines that there is a failure.

.

TROUBLESHOOTING HINTS

• Malfunction of the connector (ETACS-ECU con-

nector improperly connected)

• Malfunction of the wiring harness (CAN_H and 

CAN_L lines are short to power supply or ground 
on the CAN-B line.)

• Malfunction of ECUs

DIAGNOSIS

Required Special Tools:

• MB991223: Harness Set

• MB992006: Extra Fine Probe

AC901075 BA

Connectors: C-03, C-29, C-31, C-102, C-103

C-03

C-29

C-31

C-102

C-103

AC901076 AJ

Connectors: C-13, C-16, C-17, C-28

C-13

C-16, 
C-17

C-28 (Y)

ACA02654

AL

Connectors: C-109, C-111

C-111

C-109 (B)

ACA02655BB

Connector: C-301

AC901079AX

Connectors: D-34, D-34-2

D-34, 
D-34-2

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-136

STEP 1. Check the wiring harness between ETACS-ECU 
connector C-301 and body ground for a short to power 
supply. Measure the voltage at ETACS-ECU connector 
C-301.

CAUTION

A digital multimeter should be used. For details refer to 

P.54C-7

.

CAUTION

The test wiring harness should be used. For details refer to 

P.54C-7

.

(1) Disconnect ETACS-ECU connector C-301, and measure 

the voltage at the wiring harness side of ETACS-ECU 
connector.

(2) Turn the ignition switch to the ON position.
(3) Measure the voltage between ETACS-ECU connector 

terminal 6 and body ground.

OK: 4.7 volts or less

(4) Measure the voltage between ETACS-ECU connector 

terminal 7 and body ground.

OK: 4.7 volts or less

Q: Do all the voltages measure 4.7 volts or less?

YES : Go to Step 2.
NO :  Go to Step 12.

AC702831BO

Harness side: C-301

Test 
harness

AC702831 BP

Harness side: C-301

Test 
harness