Mitsubishi Lancer (4A9 engine). Manual — part 223
ETACS
CHASSIS ELECTRICAL
54A-554
Inspection Procedure 3: The key reminder switch signal is not received.
CAUTION
Before replacing the ECU, ensure that the power supply circuit, the earth circuit and the communica-
tion circuit are normal.
COMMENTS ON TROUBLE SYMPTOM
The key reminder switch input signal is used for the
operation judgment of the functions below. If the sig-
nal is abnormal, these functions will not work.
• Central door locking
• Keyless entry system
ETACS-
ECU
KEY
REMINDER
SWITCH
WHEN REMOVING
KEY: ON
Key Reminder Switch Input Circuit
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Grey R : Red P : Pink V : Violet PU : Purple SI : Silver
AC612708
Connector: C-213 <LHD>
AU
AC612716 AL
Connector: C-213 <RHD>
AC701240
AK
Connector: C-315 <LHD>
ETACS-ECU
AC701241
AK
Connector: C-315 <RHD>
ETACS-ECU
ETACS
CHASSIS ELECTRICAL
54A-555
• KOS
• 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. Connector check: C-213 key reminder
switch connector
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Repair the defective connector.
STEP 2. Check the key reminder switch.
Check the key reminder switch. Refer to .
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Replace the key reminder switch.
STEP 3. Resistance measurement at the C-213
key reminder switch connector
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Measure the resistance between the C-213 key
reminder switch connector terminal No. 2 and the
body earth.
OK: Continuity exists (2
Ω or less)
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Go to Step 4.
STEP 4. Wiring harness check from C-213 key
reminder switch connector terminal No. 2 to
body earth
Check the earth wire for open circuit.
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 :
Repair the wiring harness.
STEP 5. Connector check: C-315 ETACS-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 6.
NO :
Repair the defective connector.
STEP 6. Wiring harness check between the C-213
key reminder switch connector terminal No. 3
and the C-315 ETACS-ECU connector terminal
No. 13
Check the output line for open circuit.
Q: Is the check result normal?
YES :
Go to Step 7.
NO :
Repair the wiring harness.
STEP 7. M.U.T.-III data list
Turn the ignition switch to the OFF (key inserted)
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.
Item No.
Item name
Normal
condition
Item 264
Handle lock switch
Key in
ETACS
CHASSIS ELECTRICAL
54A-556
Inspection Procedure 4: The front door lock actuator signal is not received. <LH drive vehicles>
CAUTION
Before replacing the ECU, ensure that the power supply circuit, the earth circuit and the communica-
tion circuit are normal.
COMMENTS ON TROUBLE SYMPTOM
The front door lock actuator (LH) input signal is used
for the operation judgment of the functions below. If
the signal is abnormal, these functions will not work
normally.
• Central door locking
• KOS
• Keyless entry system
• Room lamp
Door Look Actuator Signal Input Circuit
ETACS-ECU
<VEHICLES FOR RUSSIA>
FRONT DOOR
LOCK ACTUATOR
(LH)
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Grey R : Red P : Pink V : Violet PU : Purple SI : Silver
VEHICLES WITH KEYLESS ENTRY SYSTEM
:
VEHICLES WITHOUT KEYLESS ENTRY SYSTEM
:
NOTE
AC701240
AV
ETACS-ECU
Connector: C-301 <LHD>
AC612730
Connector: E-15 <LHD>
AF
E-15 (B)
ETACS
CHASSIS ELECTRICAL
54A-557
PROBABLE CAUSES
• Malfunction of the front door lock actuator (LH)
• Malfunction of the ETACS-ECU
• Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
STEP 1.Connector check: E-15 front door lock
actuator (LH) connector
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Repair the defective connector.
STEP 2. Front door lock actuator (LH) check
Refer to GROUP 42A
− Door .
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Replace the front door lock actuator (LH).
STEP 3. Resistance measurement at the E-15
front door lock actuator (LH) connector
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Measure the resistance between the E-15 front
door lock actuator (LH) connector terminal No. 1
and the body earth.
OK: Continuity exists (2
Ω or less)
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Go to Step 4.
STEP 4. Wiring harness check between the E-15
front door lock actuator (LH) connector terminal
No. 1 and the body earth
Check the earth wires for open circuit.
NOTE: Prior to the wiring harness inspection, check
intermediate connector C-125, and repair if neces-
sary.
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 :
Repair the wiring harness.
STEP 5. Connector check C-301 ETACS-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 6.
NO :
Repair the defective connector.
STEP 6. Wiring harness check between the E-15
front door lock actuator (LH) connector terminal
No. 2, 3 and the C-301 ETACS-ECU connector
terminal No. 11, 22.
Check the input line for open circuit.
NOTE: Prior to the wiring harness inspection, check
intermediate connector C-126, and repair if neces-
sary.
Q: Is the check result normal?
YES :
Go to Step 7.
NO :
Repair the wiring harness.
STEP 7. M.U.T.-III data list
Change the status of driver's door from unlocked to
locked.
NOTE: *: Vehicles for RUSSIA
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.
Item No.
Item name
Normal
condition
Item 270
*
Dr door lock switch Not lock
→
Lock
Item 271
Dr door unlock
switch
Unlock
→ Not
Unlock
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст