Central Locking - ZKE IV: Notes

The locking and unlocking of the lock actuators is controlled from three relays in the GM. The door lock actuator "Pin Contacts" and lock micro-switches provide the inputs to the GM for locking/double locking and unlocking of the doors, trunk, fuel filler flap (and glove box on the E36iC only). The relays in the GM provide both power and ground depending on the direction of actuator movement (lock/unlock).