Lancer L4-2.4L SOHC (2005)
The ETACS-ECU operates the central door locking system according to signal from the driver's door lock key cylinder switch.
TECHNICAL DESCRIPTION (COMMENT)
If the signal is not normal, the systems, which are described in "CIRCUIT OPERATION", do not work normally.
TROUBLESHOOTING HINTS
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The driver's door lock key cylinder switch 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 Tools:
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MB991223: Harness Set
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MB991958: Scan Tool (MUT-III Sub Assembly)
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MB991824: Vehicle Communication Interface (V.C.I.)
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MB991827: MUT-III USB Cable
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MB991911: MUT-III Main Harness B
STEP 1. Check driver's door lock key cylinder switch connector E-01 for loose, corroded or damaged terminals, or terminals pushed back in
the connector.
Q: Is driver's door lock key cylinder switch connector E-01 in good condition?
YES: Go to Step 2.
NO: Repair or replace the damaged component(s). Refer to Harness Connector Inspection. If the systems, which are described in "CIRCUIT
OPERATION", work normally, the input signal from the driver's door lock key cylinder switch should be normal.
