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.

Symptom
Check Items
Also check for
The security system sounds randomly while the doors are locked
Tripped sensor recall
  
The horn does not sound and/or the headlights do not flash when the PANIC button on the keyless transmitter/remote is pressed
Symptom troubleshooting
  
Security alarm system will not arm
Symptom troubleshooting
  
All the doors will not lock or unlock with driver's door key cylinder or door lock switch or keyless transmitter/remote
  
Driver's door will not lock or unlock
Poor ground (G501)
Blown No. B25 fuse
Blown No. B39 fuse
Door switch test (check the door switch ON/OFF information with the HDS)
Body control module input test
Power window master switch input test
Driver's door lock actuator test
  
Left rear door will not lock or unlock
Poor ground (G601)
Blown No. B13 fuse
Blown No. B38 fuse
Body control module input test
Door switch test (check the door switch ON/OFF information with the HDS)
Left rear door lock actuator test
  
Front passenger's and right rear doors will not lock or unlock
Poor ground (G505, G602)
Blown No. B12 fuse
Blown No. B26 fuse
Body control module input test
Door switch test (check the door switch ON/OFF information with the HDS)
Door lock actuator test
  
Passenger 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
Symptom troubleshooting
  
Auto door unlock does not work
Symptom troubleshooting
  

*: L15BY engine