Mitsubishi Outlander (2013+). Manual — part 707
ETACS
CHASSIS ELECTRICAL
54A-313
PROBABLE CAUSES
• Malfunction of the ETACS-ECU
• Malfunction of the ignition switch <Vehicles with-
out KOS>
• Malfunction of the OSS-ECU <Vehicles with one
touch start system>
• Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
STEP 1. Voltage measurement at ETACS-ECU
connector (ACC terminal).
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Turn the ignition switch to the "ACC" position.
(3) Check the voltage between the ETACS-ECU
connector (ACC terminal) and body earth.
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 5.
NO <vehicles with one touch start system> :
Go to
Step 2.
NO <vehicles without one touch start system> :
Go to Step 3.
STEP 2. Check the M.U.T.-III Diagnosis code for
other systems
Check that the OSS-ECU set a diagnosis code.
Q: Is the diagnosis code set?
YES :
Diagnose the OSS-ECU. Refer to GROUP
42B, Troubleshooting
NO :
Go to Step 4.
STEP 3. Ignition switch check
Check the ignition switch. Refer to
.
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Troubleshoot the ignition switch. Refer to
Inspection Procedure 2 "Malfunction of the
ignition switch power supply system"
.
STEP 4. Check of short to power supply, short to
earth, and open circuit in ACC line between
ignition switch (ACC) <Vehicles without KOS> or
OSS-ECU (ACC) <Vehicles with one touch start
system> and ETACS-ECU connector.
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Repair the connector(s) or wiring harness.
STEP 5. M.U.T.-III data list
Check the input signals from the ignition switch
(ACC).
•
Item No.
Item name
Normal
condition
Item 288
ACC switch
ON
Turn the ignition switch to the ACC position.
OK: Normal condition is displayed.
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 ETACS-ECU.
Inspection Procedure 2: The ignition switch (IG1) signal is not received.
CAUTION
• Before replacing the ECU, ensure that the
power supply circuit, the earth circuit and the
communication circuit are normal.
• When the ETACS-ECU of vehicles without
KOS is replaced, the encrypted code of the
ignition key needs to be registered to the
ETACS-ECU. (If the encrypted code is not reg-
istered, the engine cannot be started. Regis-
ter the encrypted code as described in
Immobilizer System
− How to Register Key ID
COMMENTS ON TROUBLE SYMPTOM
If there is an error to the input signal (IG1) from the
ignition switch <Vehicles without KOS> or OSS-ECU
<Vehicles with one touch start system>, or if the IG
relay in ETACS-ECU does not function normally, the
ignition switch (IG1) signal is no longer output to the
communication line.
PROBABLE CAUSES
• Malfunction of the ETACS-ECU
• Malfunction of the ignition switch <Vehicles with-
out KOS>
• Malfunction of the OSS-ECU <Vehicles with one
touch start system>
ETACS
CHASSIS ELECTRICAL
54A-314
• Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
STEP 1. Voltage measurement at ETACS-ECU
connector (IG1 terminal)
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Turn the ignition switch to the "ON" position.
(3) Check the voltage between the ETACS-ECU
connector (IG1 terminal) and body earth.
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 5.
NO <vehicles with one touch start system> :
Go to
Step 2.
NO <vehicles without one touch start system> :
Go to Step 3.
STEP 2. Check the M.U.T.-III Diagnosis code for
other systems
Check that the OSS-ECU set a diagnosis code.
Q: Is the diagnosis code set?
YES :
Diagnose the OSS-ECU. Refer to GROUP
42B, Troubleshooting
NO :
Go to Step 4.
STEP 3. Ignition switch check
Check the ignition switch. Refer to
.
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Troubleshoot the ignition switch. Refer to
Inspection Procedure 2 "Malfunction of the
ignition switch power supply system"
.
STEP 4. Check of short to power supply, short to
earth, and open circuit in IG1 line between
ignition switch (IG1) <Vehicles without KOS> or
OSS-ECU (IG1) <Vehicles with one touch start
system> and ETACS-ECU connector.
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Repair the connector(s) or wiring harness.
STEP 5. M.U.T.-III data list
Check the input signal from the ignition switch (IG1).
•
Item No.
Item name
Normal
condition
Item 254
IG voltage
System voltage
Turn the ignition switch to the "ON" position.
OK: Normal condition is displayed.
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 ETACS-ECU.
Inspection Procedure 3: The key reminder switch signal is not received. <Vehicles without KOS>
CAUTION
• Before replacing the ECU, ensure that the
power supply circuit, the earth circuit and the
communication circuit are normal.
• When the ETACS-ECU of vehicles without
KOS is replaced, the encrypted code of the
ignition key needs to be registered to the
ETACS-ECU. (If the encrypted code is not reg-
istered, the engine cannot be started. Regis-
ter the encrypted code as described in
Immobilizer System
− How to Register Key ID
COMMENTS ON TROUBLE SYMPTOM
The key reminder switch input signal is used for the
operation judgement of the functions below. If the
signal is abnormal, these functions will not work.
• Ignition key reminder function
• Central door locking
• Keyless entry system
• Ignition key cylinder illumination lamp
• Room lamp
PROBABLE CAUSES
• Malfunction of the key reminder switch
• Malfunction of the ETACS-ECU
• Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
STEP 1. Check the key reminder switch.
Refer to
Q: Is the check result normal?
ETACS
CHASSIS ELECTRICAL
54A-315
YES :
Go to Step 2.
NO :
Replace the key reminder switch.
STEP 2. Resistance measurement at key
reminder switch connector (earth terminal)
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Measure the resistance between the key
reminder switch connector (earth terminal) and
body earth.
OK: Continuity exists (2
Ω or less)
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Go to Step 3.
STEP 3. Check of open circuit in earth line
between key reminder switch connector and the
body earth
Q: Is the check result normal?
YES :
Intermittent malfunction is suspected (Refer
to GROUP 00
− How to Use
Troubleshooting/Inspection Service Points
−
How to Cope with Intermittent Malfunction ).
NO :
Repair the connector(s) or wiring harness.
STEP 4. Check of short to power supply, short to
earth, and open circuit in HL1+ line between
ETACS-ECU connector and key reminder switch
connector
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Repair the connector(s) or wiring harness.
STEP 5. M.U.T.-III data list
Check the input signals from the key reminder
switch.
•
Item No.
Item name
Normal
condition
Item 264
Handle lock switch
Key in
Ignition switch: "LOCK" (OFF) (key inserted)
OK: Normal condition is displayed.
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 ETACS-ECU.
Inspection Procedure 4: The front door lock actuator (driver’s side) signal is not received.
CAUTION
• Before replacing the ECU, ensure that the
power supply circuit, the earth circuit and the
communication circuit are normal.
• When the ETACS-ECU of vehicles without
KOS is replaced, the encrypted code of the
ignition key needs to be registered to the
ETACS-ECU. (If the encrypted code is not reg-
istered, the engine cannot be started. Regis-
ter the encrypted code as described in
Immobilizer System
− How to Register Key ID
COMMENTS ON TROUBLE SYMPTOM
The front door lock actuator (driver’s side) input sig-
nal is used for the operation judgement of the func-
tions below. If the signal is abnormal, these functions
will not work normally.
• Key reminder function
• Central door locking
• KOS
• Keyless entry system
• Room lamp
PROBABLE CAUSES
• Malfunction of the front door lock actuator
(driver’s side)
• Malfunction of the ETACS-ECU
• Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
STEP 1. Front door lock actuator (driver’s side)
check
Refer to GROUP 42A
− Door .
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Replace the front door lock actuator
(driver’s side).
STEP 2. Resistance measurement at front door
lock actuator (LH) connector (earth terminal)
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Measure the resistance between the door lock
actuator (LH) connector (earth terminal) and body
ETACS
CHASSIS ELECTRICAL
54A-316
earth.
OK: Continuity exists (2
Ω or less)
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Go to Step 3.
STEP 3. Check of open circuit in earth line
between front door lock actuator (LH) connector
and body earth
Q: Is the check result normal?
YES :
Intermittent malfunction is suspected (Refer
to GROUP 00
− How to Use
Troubleshooting/Inspection Service Points
−
How to Cope with Intermittent Malfunction ).
NO :
Repair the connector(s) or wiring harness.
STEP 4. Check of short to power supply, short to
earth, and open circuit in DDUK line between
ETACS-ECU connector and front door lock
actuator (LH) connector
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Repair the connector(s) or wiring harness.
STEP 5. M.U.T.-III data list
Change the status of driver's door from unlocked to
locked.
Item No.
Item name
Normal
condition
Item 271
Dr door unlock
switch
Unlock
→
Lock
OK: Normal condition is displayed.
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 ETACS-ECU.
Inspection Procedure 5: The front door switch (driver’s side) signal is not received.
CAUTION
• Before replacing the ECU, ensure that the
power supply circuit, the earth circuit and the
communication circuit are normal.
• When the ETACS-ECU of vehicles without
KOS is replaced, the encrypted code of the
ignition key needs to be registered to the
ETACS-ECU. (If the encrypted code is not reg-
istered, the engine cannot be started. Regis-
ter the encrypted code as described in
Immobilizer System
− How to Register Key ID
COMMENTS ON TROUBLE SYMPTOM
If there is an error to the front door switch (driver’s
side) input signal, the door switch (driver’s side) sig-
nal is no longer output to the communication line.
PROBABLE CAUSES
• Malfunction of front door switch (LH)
• Malfunction of the ETACS-ECU
• Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
STEP 1. Check the installation condition.
Check that the front door switch (driver’s side) is
installed to the body correctly.
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Correct the installation condition.
STEP 2. Front door switch (driver’s side) check
Refer to GROUP 42A
− Door .
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Replace the front door switch (driver’s side).
STEP 3. Check of short to power supply, short to
earth, and open circuit in DDR line between
ETACS-ECU connector and front door switch
(LH) connector
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Repair the connector(s) or wiring harness.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст