Mitsubishi Outlander GS45X. Manual — part 1258
TROUBLESHOOTING
TSB Revision
LOCAL INTERCONNECT NETWORK (LIN)
54B-25
STEP 2. Check the ground circuit to the theft-alarm siren.
Measure the resistance at theft-alarm siren connector
A-62.
(1) Disconnect theft-alarm siren connector A-62 and measure
the resistance available at the wiring harness side of the
connector.
(2) Measure the resistance value between theft-alarm siren
connector A-62 terminal 1 and ground.
• The resistance should be 2 or less.
Q: Is the measured resistance 2 or less?
YES : Go to Step 4.
NO : Go to Step 3.
STEP 3. Check the wiring harness between theft-alarm
siren connector A-62 (terminal 1) and the ground.
Check the ground wires for open circuit.
NOTE: Also check intermediate connector A-03 for loose, cor-
roded, or damaged terminals, or terminals pushed back in the
connector. If intermediate connector A-03 is damaged, repair or
replace the connector as described in GROUP 00E, Harness
Connector Inspection
.
Q: Is the wiring harness between theft-alarm siren
connector A-62 (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
theft-alarm siren. Measure the voltage at theft-alarm siren
connector A-62.
(1) Disconnect theft-alarm siren connector A-62 measure the
voltage available at the wiring harness side of the
connector.
(2) Measure the voltage between theft-alarm siren connector
A-62 terminal 1 and ground.
• 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.
AC608255 DG
Connector A-62
(Harness side)
AC608254 FB
Connector A-62
(Harness side)
TROUBLESHOOTING
TSB Revision
LOCAL INTERCONNECT NETWORK (LIN)
54B-26
STEP 5. Check the wiring harness between ETACS-ECU
connector C-304 (terminal 4) and theft-alarm siren
connector A-62 (terminal 2).
• Check the power supply line (battery supply) for open circuit
and short circuit.
NOTE: Also check intermediate connector A-03 for loose, cor-
roded, or damaged terminals, or terminals pushed back in the
connector. If intermediate connector A-03 is damaged, repair or
replace the connector as described in GROUP 00E, Harness
Connector Inspection
.
Q: Is the wiring harness between ETACS-ECU connector
C-304 (terminal 4) and theft-alarm siren connector A-62
(terminal 2) 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 6. Check the LIN cutoff control unit.
Remove the LIN cutoff control unit. Check for continuity
between the following terminals and inspect the relay.
• Continuity check
• Relay check
Q: Is the LIN cutoff control unit in good condition?
YES : Go to Step 7.
NO : Replace the LIN cutoff control unit.
Terminal number
Measurement value
5 to 3
Continuity exists (2
Ω or
less)
System voltage
Terminal
number
Normal
condition
At no energization
5 to 7
No
continuity
With current supply
[terminal 1 (+), terminal 8
(
−)]
Continuity
exists (2
Ω
or less)
TROUBLESHOOTING
TSB Revision
LOCAL INTERCONNECT NETWORK (LIN)
54B-27
STEP 7. Check the battery power supply circuit to the
ETACS-ECU. Measure the voltage at ETACS-ECU
connector C-312.
(1) Disconnect ETACS-ECU connector C-312 measure the
voltage available at the wiring harness side of the
connector.
(2) Measure the voltage between ETACS-ECU connector
C-312 terminal 9 and ground.
• The voltage should measure approximately 12 volts
(battery positive voltage).
Q: Is the check result normal?
YES : Go to Step 10.
NO : Go to Step 8.
STEP 8. Check the wiring harness between ETACS-ECU
connector C-317 (terminal 10) and LIN cutoff control unit
connector C-40 (terminal 1).
• Check the power supply line (battery supply) for open circuit
and short circuit.
Q: Is the wiring harness between ETACS-ECU connector
C-317 (terminal 10) and LIN cutoff control unit
connector C-40 (terminal 1) in good condition?
YES : Go to Step 9.
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 9. Check the wiring harness between ETACS-ECU
connector C-312 (terminal 9) and LIN cutoff control unit
connector C-40 (terminal 8).
• Check the power supply line (battery supply) for open circuit
and short circuit.
NOTE: Also check intermediate connector C-34 for loose, cor-
roded, or damaged terminals, or terminals pushed back in the
connector. If intermediate connector C-34 is damaged, repair or
replace the connector as described in GROUP 00E, Harness
Connector Inspection
.
Q: Is the wiring harness between ETACS-ECU connector
C-312 (terminal 9) and LIN cutoff control unit connector
C-40 (terminal 8) in good condition?
YES : Go to Step 12.
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.
AC608254 FC
Connector C-312
(Harness side)
TROUBLESHOOTING
TSB Revision
LOCAL INTERCONNECT NETWORK (LIN)
54B-28
STEP 10. Check the wiring harness between ETACS-ECU
connector C-301 (terminal 1) and LIN cutoff control unit
connector C-40 (terminal 7).
• Check the communication line for open circuit.
Q: Is the wiring harness between ETACS-ECU connector
C-301 (terminal 1) and LIN cutoff control unit connector
C-40 (terminal 7) in good condition?
YES : Go to Step 11.
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 11. Check the wiring harness between LIN cutoff
control unit connector C-40 (terminal 5) and theft-alarm
siren connector A-62 (terminal 3).
• Check the communication line for open circuit.
NOTE: Also check intermediate connectors A-03 and C-34 for
loose, corroded, or damaged terminals, or terminals pushed
back in the connector. If intermediate connectors A-03 and
C-34 is damaged, repair or replace the connector as described
in GROUP 00E, Harness Connector Inspection
.
Q: Is the wiring harness between LIN cutoff control unit
connector C-40 (terminal 5) and theft-alarm siren
connector A-62 (terminal 3) in good condition?
YES : Go to Step 12.
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.
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