Eclipse L4-2.4L SOHC (2004)
Interior Light Automatic Shut-down Function Circuit
CIRCUIT OPERATION
The ETACS-ECU illuminates the dome light, the luggage compartment light <ECLIPSE> and the trunk light <ECLIPSE SPYDER> according to the
following signals:
-
Ignition switch (IG1): ON or OFF
-
Key reminder switch: ON or OFF
-
Front door switch: ON or OFF
-
Driver's door lock actuator switch: ON or OFF
-
Liftgate latch switch (vehicles with theft-alarm system) or liftgate light switch (vehicles without theft-alarm system): ON or OFF <ECLIPSE>
-
Trunk lid latch switch (vehicles with theft-alarm system) or trunk light switch (vehicles without theft-alarm system): ON or OFF <ECLIPSE
SPYDER>
-
Interior light loaded signal: ON
TECHNICAL DESCRIPTION (COMMENT)
If the dome light, the luggage compartment light <ECLIPSE> and trunk light <ECLIPSE SPYDER> do not illuminate normally, the dome light bulb(s)
may be burned out or the input circuit system from the switches, the power supply lines to the switches or the ETACS-ECU may be defective (refer to
"CIRCUIT OPERATION").
TROUBLESHOOTING HINTS
-
Malfunction of the key reminder switch
-
Malfunction of the door switch
-
Malfunction of the driver's door lock actuator switch
-
Malfunction of the dome light
-
Malfunction of the liftgate latch switch or liftgate light switch <ECLIPSE>
-
Malfunction of trunk lid latch switch or trunk light switch <ECLIPSE SPYDER>
-
Malfunction of the ETACS-ECU
-
Damaged harness wires or connectors
DIAGNOSIS
Required Special Tools:
-
MB991223: Harness Set
-
MB991958: Scan Tool (MUT-III Sub Assembly)
-
MB991824: Vehicles communication interface
-
MB991827: MUT-III USB cable
-
MB991911: MUT-III Main harness B
-
MB991813: SWS monitor kit
-
MB991806: SWS monitor cartridge
-
MB991812: SWS monitor harness (for column-ECU)
-
MB991922: Probe harness
STEP 1. Use scan tool MB991958 to select "ECU COMM Check" on the SWS monitor display.
Check the ETACS-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.
