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 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 CHART

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 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 referring to INSPECTION OF KEYLESS START CONTROL MODULE AND ITS CIRCUITS .
	BCM faulty	Check input and output signal of BCM 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 referring to FRONT DOOR (DRIVER AND PASSENGER SIDE), REAR END DOOR/TRUNK LID 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 referring to INSPECTION OF KEYLESS START CONTROL MODULE AND ITS CIRCUITS .
	BCM faulty	Check input and output signal of BCM referring to INSPECTION OF BCM AND ITS CIRCUITS .