Lancer L4-2.4L SOHC (2005)
NO: Refer to Symptom Chart See: Symptom Charts before resolving this trouble.
Inspection Procedure E-1
Keyless Entry System: Keyless entry system does not operate.
Transmitter ("LOCK"/"UNLOCK") Input Signal
CIRCUIT OPERATION
A receiver is incorporated in the ETACS-ECU. This receiver receives a lock or unlock signal from the transmitter.
TROUBLESHOOTING HINTS
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The transmitter may be defective
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The ETACS-ECU may be defective
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. Verify the central door locking system.
Q: Does the central door locking system work normally?
YES: Go to Step 2.
NO: Refer to Inspection Procedure C-1 "The central door locking system does not work at all."
STEP 2. Check the input signal (by using the pulse check mode of the monitor).
Check input signals from the transmitter.
CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or
disconnecting scan tool MB991958.
