The problem is not the actuators, the fault lies in the central locking control unit under the dashboard, behind the glovebox, on the firewall. The CLCU is mounted with the connection terminals to the top resulting in condensation going onto the printed circuit board inside, if the damage started a while ago there is only 3 ways to go.
1. specialist firm to repair the CLCU.
2. Replace.
3. (As I did) buy a cheap remote control receiver with keyfob/s. Cut all wires off the multiplug, there are four pairs, a permanent live and permanent earth. Test each wire to earth on the van to identify the permanent earth FIRST. Then test pairs of wires across 12v/Earth noting which pairs actuate which lock.Isolate in pairs noting which wire has to be live to lock, (Reversed it will unlock) wire each pair into the relay on the remote receiver using the relay to changeover the polarity to each pair You will then be able to Lock/Unlock all the doors, throw the old CLCU away and mount the RCReceiver eslewhere to keep it dry. each door individually. I bought a 2 way RCReceiver and can lock/Unlock front doors seperate the the rear ones which is of far more use! Any decent electrician will tell you how to wire the relays. Job Done..... (100% Sure)
Sounds like dirty lock actuators / linkage. Remove panel, inspect and clean with WD-40. Re-test.
SOURCE: 2004 Civic Drivers door lock
The driver's side door lock button is designed not to lock from the inside unless the handle is pulled, or the power switch is used. This serves as a reminder to not lock your keys inside.
If you are inside, and push down on the button (not the switch) hard enough to lock it, you've probably damaged it.
SOURCE: Kia Spectra problem with door locks
I had the same problem with my kia and they just fixed it. It was a bad switch.
SOURCE: key fob will not lock or unlock doors on 06 Sonata
Hi there
i have the same problem but mine is the sensor that is under the dash that is faulty so i had them disable it untill i can get a part that they need to order so i would have your dealer check the sensor .. if it is under warranty they will replace it for free
SOURCE: Power windows inop
a brake in ur wires in the door,on a 04 grand i had the same problem,in the wire harness were the junction box is rust had broken one of the male prongs
SOURCE: My 2003 Honda CRV ...drivers side door does not
you may need to replace the door locking actuator, they do tend to go bad over times. does the driver side door lock automatic when using the lock button on the driver side. if you can lock and unlock the driver side door with a switch, my guess would not be the locking actuator, it might be in the remote locking module.
Testimonial: "Thanks for the help. everything relates back to the actuator.."
1. Start with the key out of the ignition, drivers door is open all others closed and
drivers door is unlocked.
2. Perform these steps within 5 seconds.
A. Insert the key into the ignition(Do NOT Turn) Pull key out.
B. Insert the key into the ignition(Do NOT Turn) Pull key out.
3. Perform these steps within 40 seconds.
A. Close then open the drivers door.
B. Close then open the drivers door.
C. Insert the key into the ignition(Do NOT Turn) Pull key out.
4. Perform these steps within 40 seconds.
A. Close then open the drivers door.
B. Close then open the drivers door.
C. Close the drivers door
D. Insert the key into ignition and leave it in ignition.
E. Turn the ignition to ON (Do NOT Start) then back to OFF.
F. Remove the key from the ignition.
5. Within 3 seconds, the power door locks should lock then unlock automatically
indicating successful entry into programming mode.
Return to step 1 if the locks do not cycle at this point.
6. Perform these steps within 40 seconds.
A. Press the lock and unlock buttons on the remtoe simutaneously for 1.5 seconds.
B. Immediately after letting go of the lock and unlock buttons,
Press the lock button by itself and hold for 2 seconds. Within 3 seconds, the door
locks should lock and then unlock once indicating successful programming. If
the door locks cycle twice, repeat steps A and B in step 6 as the remote was
not accepted.
C. Repeat steps A and B in step 6 for each new remote.
7. Open drivers door.
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