Mitsubishi Outlander GS45X. Manual — part 1297
DIAGNOSIS
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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
(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
−
.
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
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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
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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
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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
CAUTION
The test wiring harness should be used. For details refer to
(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
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