I have a 95 355 that got a major service done and the suspension warning is staying on even after a few drives. It should have gone off by now. I have checked... Speed sensor. The speedometer is working so there is a speed signal The two rear shock control modules are plugged in, no bent pins The connectors below the engine ECUs are all plugged in, no bent pins, both sides Even the front Shock control modules are all good, no broken teeth. I am stumped and can use a pointer. No SD1 to tell me exactly what the problem is.