Firstlyestablish if your c/locking is factory fitted or after market. If factory fitted check the fuse box for any blown fuses. If after market then their is a fused +12v line running to a normally black unit which controls the C/Locking, check that. If no luck with that take it to a fitment center who can diagnose that within 5 minutes. Thecentral locking system is an important line of defence for the occupants of the vehicle. Each car key includes a unique code that interacts with the vehicle's alarm system. The engine immobiliser is activated when the automobile is locked with the key. The system will be restored only when the same code is received from the automobile key. RobHerbert. Expert. 75 Answers. 1, press and hold the lock button the the key fog. key into ignition, still hold the key fog. turn key to the start position, hold for ten seconds. 3, remove key without letting go of the lock button. wait 3 seconds ,then try pressing the key or ring me. 07709993070 and i will talk you throught it. NoModel: Seeing warning lights on your Toyota's dashboard? Explore its warning lights and indicators and find out the next steps to keep you and your vehicle safe. If the model can be programmatically inserted into the description, that would be ideal. If not, use the description above. Model selected: Seeing warning lights on your Toyota [MODEL_HERE]'s dashboard? Explore its warning lights Inthis video we look at the central locking problems on our Land Rover Discovery 4 / we look at the fuse / removing the door card / trying to fix etc. Blownfuse: A blown fuse could be the cause of door locks not working. This is fairly easy and inexpensive to fix by a mechanic. If you're not sure what may be wrong or need help with a repair for your car's central locking system, ClickMechanic can help. G ghost9 · #3 · Jul 4, 2011. Also check the switches in all doors, because many central lock systems include checking if every door is closed. Check the trunk lid also. I also had this problem, and the cause was the small rod which leads to the locking mechanism - it was hooked out of the hole it was in before, so the driver's door didn't Locatethe door panel in the door handle or behind the speakers. Unscrew the bolts holding the door panel. Gently pull out the panel with a remover. Disconnect the wire connecting the power door locks to the interior of your door. Peel back the plastic shroud around the door. 14nbAF.