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Home >> Honda >> 2012 >> Fit Base, Automatic Trans >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Keyless/Power Door Locks/Security System >> Symptom Troubleshooting Index >> Power Door Locks/Keyless
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Power Door Locks/Keyless

  1. Check for B-CAN DTCs. If any B-CAN DTCs are indicated, refer to the B-CAN system diagnosis troubleshooting (see GENERAL TROUBLESHOOTING INFORMATION ).
  2. If the door lock system and the keyless operation do not work, troubleshoot the door locks first.
NOTE: The system does not function when the ignition switch is ON (II).
SYMPTOM TROUBLESHOOTING TABLE

Symptom Check Items
The security system sounds randomly while the doors are locked. Tripped sensor history (see Tripped Sensor History  )
All the doors will not lock or unlock (1)
  • Poor ground (G501, G502, G602)
  • Driver's door key cylinder switch test (see DOOR KEY CYLINDER SWITCH TEST  )
  • Door switch test (check the door switch ON/OFF information with the HDS)
  • Door lock switch test (check the door switch ON/OFF information with the HDS)
Driver's and left rear doors will not lock or unlock.
  • Poor ground (G501, G502)
  • Blown No. 27 (30 A) fuse in the under-dash fuse/relay box
  • Blown No. 36 (15 A) and/or No. 50 (15A) fuse in the under-dash fuse/relay box
  • MICU input test (see MICU INPUT TEST  )
Front passenger's and right rear doors, and tailgate will not lock or unlock.
  • Poor ground (G501, G502)
  • Blown No. 27 (30 A) fuse in the under-dash fuse/relay box
  • Blown No. 35 (15 A) and/or No. 49 (15 A) fuse in the under-dash fuse/relay box
  • MICU input test (see MICU INPUT TEST  )
Keyless operation does not work (LOCK, UNLOCK, PANIC). Symptom troubleshooting (see DOORS AUTOMATICALLY RELOCK 30 SECONDS AFTER BEING UNLOCKED WITH THE TRANSMITTER EVEN THOUGH A DOOR HAS BEEN OPENED )
Doors automatically relock 30 seconds after being unlocked with the transmitter even though a door has been opened. Symptom troubleshooting (see DOORS AUTOMATICALLY RELOCK 30 SECONDS AFTER BEING UNLOCKED WITH THE TRANSMITTER EVEN THOUGH A DOOR HAS BEEN OPENED )
Only driver's door will unlock or door locks relock immediately after unlocking with the remote. Driver's door lock knob switch test (see DOOR LOCK KNOB SWITCH TEST )
Keyless operation will work even though the ignition key is in the ignition switch. Ignition key switch test (see IGNITION KEY SWITCH TEST )
Doors will not unlock (or lock) with the transmitter, but will unlock (or lock) with the door lock switch and the door key cylinder switch Symptom troubleshooting (see DOORS WILL NOT UNLOCK (OR LOCK) WITH THE TRANSMITTER, BUT WILL UNLOCK (OR LOCK) WITH THE DOOR LOCK SWITCH AND THE DOOR KEY CYLINDER SWITCH )
The horn does not sound when PANIC button on the transmitter pressed. Symptom troubleshooting (see THE HORN DOES NOT SOUND AND/OR THE HEADLIGHTS DO NOT FLASH WHEN THE PANIC BUTTON ON THE TRANSMITTER IS PRESSED  )
Security alarm system will not arm Symptom troubleshooting (see SECURITY ALARM SYSTEM WILL NOT ARM )
(1) If only one door is not working properly, check that door's lock actuator first, then check the other items listed in this table.
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