So I have a 1.8 auto Astra that starts first time every time but the car will not move when put into drive. The display cycles through the gears from D1 to D4 when you press the accelerator but vehicle won’t move. When the display reaches D4 the spanner light illuminates but no codes come up on a reader, the car stays stuck in D4 until I reset the ignition and the display reads normal again with no spanner light. There are no other lights on the gearbox selector other than what has been selected. All transmission fuses check out and I don’t know what else to try. The engine was replaced and since being put back together the car no longer moves but the engine starts fine.