This has been going on for months, started just occasionaly, now it is like every 2 minutes at all speeds and idle. The green cruise control light and air bag light flash on and quickly off. Battery/ voltmeter gauge does not drop when this happens which would indicate alternator problems. Soo what could be causing this?? I am completely at a loss for the cause of this. Please help me out. Thanks. Oh yeah, sometimes going over bumps triggers the lights to flash on and off... and this is on 91 NA with alarm and fog lights installed aftermarketly into electrical system if that makes a difference.