1992 Lexus LS 400 V8 Two Wheel Drive Automatic 250, 00 miles
my car cranks over but wont start. My alarm system is not working. When I lock the door the red light wont flash or when I shake or open door the alarm wont sound. I wiggled the main engine relay and my car started. But I really dont no if its the relay or the security system. Can you please tell me also what does the main engine relay control and can a security malfunction cause my car to not start?