Eclipse L4-2.4L SOHC (2004)
Sunroof Timer Function
CIRCUIT OPERATION
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The sunroof timer function works according to the signals from the following switches:
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Ignition switch (IG1): OFF
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Driver's and passenger's door switch: OFF
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Vehicle condition
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Ignition switch: LOCK position
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Driver's and passenger's door: Closed
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When a front door is opened and closed while the sunroof timer function is on, the sunroof operative duration will be changed.
TECHNICAL DESCRIPTION (COMMENT)
Is the sunroof timer function does not work normally, the input circuits from the switches described in "CIRCUIT OPERATION", the sunroof motor
assembly, the ETACS-ECU or the SWS communication line may be defective.
TROUBLESHOOTING HINTS
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Malfunction of the driver's or passenger's door switch
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Malfunction of the sunroof motor assembly
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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. Use scan tool MB991958 to select "ECU COMM Check" on the SWS monitor display.
Check the following ECUs:
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ETACS-ECU
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Sunroof motor assembly (sunroof-ECU)
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. Connect special tool MB991911 before connecting special tool MB991812. Be sure to connect special tool
MB991806 after turning on special tool MB991824.
