Mitsubishi Outlander GS45X. Manual — part 137
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CHASSIS ELECTRICAL
54A-545
STEP 4. Check the wiring harness between multivision
display connector C-07 (terminal 47, 48, 64) and audio and
video adaptor connector C-117 (terminal 1, 6, 4).
• Check the communication lines for open circuit and short
circuit.
NOTE: Also check intermediate connectors D-123 and C-15 for
loose, corroded, or damaged terminals, or terminals pushed
back in the connector. If intermediate connector D-123 or C-15
is damaged, repair or replace the connector as described in
GROUP 00E, Harness Connector Inspection
Q: Is the wiring harness between multivision display
connector C-07 (terminal 47, 48, 64) and audio and video
adaptor connector C-117 (terminal 1, 6, 4) in good
condition?
YES : Go to Step 5.
NO : The wiring harness may be damaged or the
connector(s) may have loose, corroded or damaged
terminals, or terminals pushed back in the connector.
Repair the wiring harness as necessary.
STEP 5. Retest the system
Check that the external input is normal.
Q: Is the check result normal?
YES : The trouble can be an intermittent malfunction (Refer
to GROUP 00, How to use
Troubleshooting/inspection Service Points, How to
Cope with Intermittent Malfunction
NO : Replace the audio and video adaptor.
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CHASSIS ELECTRICAL
54A-546
Inspection Procedure 12: Check the CAN box unit power supply circuit.
CAUTION
Whenever the CAN box unit is replaced, ensure
that the power supply circuit and the grounding
circuit are normal. (Check that the voltage is 10 V
or more.)
AC307771
CAN Box Unit Power Supply Circuit
ACC
RELAY 2
ETACS-
ECU
FUSIBLE
LINK
36
FUSIBLE
LINK
37
CAN BOX UNIT
RELAY BOX
ENGINE
COMPARTMENT
AB
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CHASSIS ELECTRICAL
54A-547
.
TECHNICAL DESCRIPTION (COMMENT)
If the CAN box unit functions do not work at all, the
CAN box unit power supply system, ground system,
or CAN box unit may have a problem.
.
TROUBLESHOOTING HINTS
• The wiring harness or connectors may have
loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector
• The CAN box unit may be defective
DIAGNOSIS
Required Special Tools:
• MB991223: Harness Set
• MB992006: Extra Fine Probe
STEP 1. Check CAN box unit connectors C-13 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q: Is CAN box unit connectors C-13 in good condition?
YES : Go to Step 2.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
STEP 2. Check the ground circuit to the CAN box unit.
Measure the resistance at CAN box unit connectors C-13.
(1) Disconnect CAN box unit connector C-13 and measure the
resistance available at the wiring harness side of the
connector.
(2) Measure the resistance value between CAN box unit
connector C-13 terminal 1 and ground.
• The resistance should be 2 ohms or less.
Q: Is the measured resistance 2 ohms or less?
YES : Go to Step 4.
NO : Go to Step 3.
AC703148AO
Connectors: C-13, C-17
C-13
C-17
ACA02655AE
Connectors: C-307, C-309, C-315, C-317
C-307 (B)
C-309 (B)
C-315
C-317
AC702818 BF
Connector C-13
(Harness side)
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CHASSIS ELECTRICAL
54A-548
STEP 3. Check the wiring harness between CAN box unit
connector C-13 (terminal 1) and the ground.
• Check the ground wires for open circuit.
Q: Is the wiring harness between CAN box unit connector
C-13 (terminal 1) and the ground in good condition?
YES : No action is necessary and testing is complete.
NO : The wiring harness may be damaged or the
connector(s) may have loose, corroded or damaged
terminals, or terminals pushed back in the connector.
Repair the wiring harness as necessary.
STEP 4. Check the battery power supply circuit to the CAN
box unit. Measure the voltage at CAN box unit connectors
C-13.
(1) Disconnect CAN box unit connectors C-13 measure the
voltage available at the wiring harness side of the
connector.
(2) Measure the voltage between CAN box unit connector C-13
terminal 2 and ground.
• OK: The voltage should measure approximately
12 volts (battery positive voltage).
Q: Is the measured voltage approximately 12 volts (battery
positive voltage)?
YES : Go to Step 6.
NO : Go to Step 5.
STEP 5. Check the wiring harness between CAN box unit
connector C-13 (terminal 2) and fusible link (36).
• Check the power supply line for open circuit and short cir-
cuit.
NOTE: Also check intermediate connector C-17 and
ETACS-ECU connectors C-307 and C-317 for loose, corroded,
or damaged terminals, or terminals pushed back in the connec-
tor. If intermediate connector C-17 and ETACS-ECU connector
C-307 or C-317 is damaged, repair or replace the connector as
described in GROUP 00E, Harness Connector Inspection
Q: Is the wiring harness between CAN box unit connector
C-13 (terminal 2) and fusible link (36) in good condition?
YES : No action is necessary and testing is complete.
NO : The wiring harness may be damaged or the
connector(s) may have loose, corroded or damaged
terminals, or terminals pushed back in the connector.
Repair the wiring harness as necessary. The system
should communicate with the CAN box unit normally.
AC702831AW
Connector C-13
(Harness side)
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