Door Lock Function of Keyless Start System

NOTE: Before performing trouble diagnosis procedure for door lock function of keyless start system, check that power door lock system operates properly by referring to Power Door Lock System Operation Inspection . If power door lock system does not operate properly, go to Power Door Lock System Symptom Diagnosis .

KEYLESS START SYSTEM SYMPTOM DIAGNOSIS TABLE

Condition	Possible Cause	Action
All doors can not be locked/unlocked by all of door request switches	Circuit fuse(s) blown	Replace fuse(s) and check for short circuit .
	Remote controller battery dead	Replace battery .
	Remote controller faulty	Check remote controller for operation by referring to REMOTE CONTROLLER INSPECTION
	Wiring or grounding faulty	Repair circuit .
	Antennas or keyless start control module faulty	Check input and output signals of keyless start control module by referring to INSPECTION OF KEYLESS START CONTROL MODULE AND ITS CIRCUITS .
	BCM faulty	Check input and output signal of BCM by referring to INSPECTION OF BCM AND ITS CIRCUITS .
All doors can not be locked/unlocked by any one of door request switch	Request switch faulty	Check request switch for operation by referring to FRONT DOOR (DRIVER AND PASSENGER SIDE), REAR END DOOR REQUEST SWITCH INSPECTION .
	Wiring or grounding faulty	Repair circuit .
	Antennas or keyless start control module faulty	Check input and output signals of keyless start control module by referring to INSPECTION OF KEYLESS START CONTROL MODULE AND ITS CIRCUITS .
	BCM faulty	Check input and output signal of BCM by referring to INSPECTION OF BCM AND ITS CIRCUITS .