Lancer L4-2.4L SOHC (2005)
![background image](/mitsubishi/lancer/l4-2.4l_sohc/Page-616068.png)
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The ETACS-ECU operates the central door lock system according to the following signals:
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Driver's door lock key cylinder switch
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Door lock switch, which is incorporated in the power window main switch or power window sub switch (front: RH)
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The ETACS-ECU locks or unlocks all the doors by operating the central door lock relay (incorporated in the ECU) in response to input signals.
TECHNICAL DESCRIPTION (COMMENT)
The wiring harness between the door lock actuator or the ETACS-ECU and the door lock actuator may defective.
TROUBLESHOOTING HINTS
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The door lock actuator (front: LH), door lock actuator (front: RH) or rear door lock actuator may be defective
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The ETACS-ECU may be defective
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The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector
DIAGNOSIS
Required Special Tool:
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MB991223: Harness Set
STEP 1. Verify which door lock is defective.
Q: Which of the door locks is defective?
Driver's door : Go to Step 2.
Front passenger's door : Go to Step 6.
Rear door (LH) : Go to Step 10.
Rear door (RH) : Go to Step 14.
STEP 2. Check door lock actuator (front: LH) connector E-04 for loose, corroded or damaged terminals, or terminals pushed back in the
connector.
Q: Is door lock actuator (front: LH) connector E-04 in good condition?
YES: Go to Step 3.
NO: Repair or replace the damaged component(s). Refer to Harness Connector Inspection. Verify that all the doors can be locked and unlocked
normally.
STEP 3. Check the door lock actuator (front: LH).
1. Remove the door lock actuator (front: LH), and check it. Refer to Door Handle and Latch.