Air bag light just randomly blinked 4 times on my way home tonight (several minutes after starting the car), and the hazards came on. Got home and did a scan using vag-com, and came up with the following: 17931/P1523/005411 - Crash Signal from Airbag Controller: Implausible Signal The fault won't clear. Strangely (to me!) I picked up the fault on the Engine ecu and NOT on the Airbag ecu. Has anyone had this fault code before and knows how to fix it??