100 series driver side central locking

[102 Land Cruiser]

I have 98 TLC driver side central locking would not lock but unlock, I can lock and unlock from the passenger side and with the remote, but can't lock from the driver side just unlock only. I took the whole thing a part try and to swap the switch still no go. Was wondering is therea relay or could it be the whole unit.

 

[TXLX100]

I have 98 TLC driver side central locking would not lock but unlock, I can lock and unlock from the passenger side and with the remote, but can't lock from the driver side just unlock only. I took the whole thing a part try and to swap the switch still no go. Was wondering is therea relay or could it be the whole unit.

It sounds like you need a new master switch, unless you can rebuild/replace the lock switch only.