Eclipse GS L4-2350cc 2.4L SOHC MFI (2002)
NOTE: This troubleshooting requires use of scan tool MB991502 and SWS monitor kit MB991862. For details of how to use the SWS monitor, refer
to "How to use SWS monitor."
CIRCUIT OPERATION
The ETACS-ECU operates the light reminder tone alarm function according to the following signals:
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Ignition switch (IG1): OFF
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Ignition key reminder switch: ON
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Driver's door switch: ON
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Taillight switch: ON
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Headlight switch: ON
The ETACS-ECU operates the light reminder tone alarm function under the following conditions:
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Ignition switch: "LOCK" (OFF) position
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Ignition key: Removed from the ignition key cylinder
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Driver's door: open
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Taillight or headlight: Illuminating
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 front door switches
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Malfunction of column switch (turn-signal light and lighting 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: Test Harness Set
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MB991502: Scan Tool (MUT-II)
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MB991862: SWS Monitor Kit
STEP 1. Use scan tool to select "ECU CHECK" on the SWS monitor display.
Check the following ECUs:
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ETACS-ECU