Keyless/Power Door Locks/Security System Symptom Troubleshooting Index

NOTE:

	If the door lock system and the keyless operation do not work, troubleshoot the door locks first. The system does not function when turn the vehicle to the ON mode.
	Before troubleshooting, make sure the fuses associated with the system is OK.

Symptom

Check Items

Also Check for

All the doors will not lock or unlock with driver's door key cylinder or door lock switch or keyless transmitter/remote

	Poor ground (G351, G401)
	Blown the fuses associated with the system
	Body control module input test
	Power window master switch input test
	Keyless transmitter test
	Remote test

Driver's door will not lock or unlock

	Poor ground (G401)
	Blown the fuses associated with the system
	Door switch test (check the door switch ON/OFF information with the HDS)
	Body control module input test
	Power window master switch input test
	Door lock actuator test

Front passenger's door will not lock or unlock

	Poor ground (G401)
	Blown the fuses associated with the system
	Body control module input test
	Door switch test (check the door switch ON/OFF information with the HDS)
	Door lock actuator test

Left rear door will not lock or unlock

	Poor ground (G501)
	Blown the fuses associated with the system
	Body control module input test
	Door switch test (check the door switch ON/OFF information with the HDS)
	Door lock actuator test

Right rear doors will not lock or unlock

	Poor ground (G502)
	Blown the fuses associated with the system
	Body control module input test
	Door switch test (check the door switch ON/OFF information with the HDS)
	Door lock actuator test

Front passenger's doors will not unlock with the remote or key cylinder switch, but will unlock with the inside door unlock switch

Driver's door lock knob switch test (check for door lock knob switch ON/OFF information with the HDS)

Doors automatically relock 30 seconds after being unlocked with the remote even though a door has been opened

Auto door unlock does not work

Security alarm system will not arm

The security system sounds randomly while the doors are locked