Lancer LS L4-2.0L SOHC (2002)
Q: Does scan tool MB991502 sound when the driver's inside lock knob is locked or unlocked?
YES: Replace the ETACS-ECU. Check that all the doors can be locked or unlocked by operating the driver's inside lock knob.
NO: Refer to Inspection Procedure M-6 "ETACS-ECU does not receive a signal from the driver's door lock actuator switch."
Inspection Procedure D-1
Power Window: Power windows do not work at all
Power Window Relay Circuit
