Lancer L4-2.4L SOHC (2005)
receive any signal from all the door switches."
When one of the interior lights is illuminated, scan tool MB991958 does not sound : Refer to Inspection Procedure N-10 "ETACS-ECU does
not receive any interior light loaded signal."
Inspection Procedure L-4
Interior Light: The interior light automatic shut-down function does not work normally.
Interior Light Automatic Shut-down Function Circuit
CIRCUIT OPERATION
The ETACS-ECU operates the interior light automatic shutdown function according to the following switch signals:
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Ignition switch (ACC)
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Ignition switch (IG1)
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Door switch (front: LH)
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All door switches
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Interior light loaded signal.
TECHNICAL DESCRIPTION (COMMENT)
If the function does not work normally, the input circuit system from the switches or the ETACS-ECU may be defective (refer to "CIRCUIT
OPERATION").
TROUBLESHOOTING HINTS
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The door 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)