Aftermarket central locking
 

Hi, I just bought a 2001 crewcab R9 Tf LX rodeo - I know its strictly not a Rodeo question but just in case someone has come across this problem I thought I`d ask.
It has aftermarket central locking which works fine on the drivers side doors but not the pass side, I removed the door trims and was able to activate the actuators by using a jumper lead, so I know the pass side locks are ok.
I dropped the dash cover and can see and hear the module clicking ok but not opening the pass side doors, It makes me think it could be the module, Any thoughts anyone?
Thanks Matman.