no1saiyan

Hello guys.

I have an Audi A4 B5 year 2000 with remote central locking issue. Problems consist of:

1. Key fob no longer locks/unlocks the car

2. Drivers door only unlocks manually using key in door and does not unlock other doors.

3. Hazard lights go off because car does not recognises it is being unlocked.

I have bought a replacement central locking pump and I have narrowed down the problem to the unlocking. the car does not know it is being unlocked. sometimes when I unplug the pump and plug back in the central locking works as it should but the key does not.

Please help!