Eclipse L4-2.4L SOHC (2004)
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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Front door switch
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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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Malfunction of the door switch
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Malfunction of the ETACS-ECU
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Damaged harness wires or connectors
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: Vehicles communication interface
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MB991827: MUT-III USB cable
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MB991911: MUT-III Main harness B
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MB991813: SWS monitor kit
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MB991806: SWS monitor cartridge
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MB991812: SWS monitor harness (for column-ECU)
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MB991922: Probe harness
STEP 1. Check the front dome light and the rear dome light.
If the front dome light switch and the rear dome light switch are moved to the "door interlock position", the front dome light and the rear dome light
should illuminate when either door is opened.
Q: Do the front dome light and the rear dome light illuminate normally?
The front dome light and the rear dome light do illuminate normally: Go to Step 2.