I have an evo7 gsr Japanese import.. the central locking fob was working intermittently but now has stopped, fuses look to be OK, any advice? Car doesn't have any key holes externally to do it manually

 

Battery of actual FOB itself maybe? They use watch batteries....well, USDM do so I'd assume same for all.

 

Have changed the batteries and now it doesn't work at all, really baffled by it.. cant lock or unlock the car as there is no key hole on any of the doors.. it did work intermittently after about 10 presses with the key withing a foot of the car but now won't at all :/