Lexus gs300 will not crank and start after being fine when parked up the night before.

[ljsto]

Hi, my Lexus gs300 will not crank and start after being fine when parked up the night before. The radiator fan will kick in when ignition is on but engine will not start. Check VSC has come up. When diagnostic laptop attached it is unable to connect to the ecu for fault code. All very strange as all fine when left last night. Checked fuses, security light flashing and battery ok. Have you any ideas please. Thank you lee

[gbhrps]

ljsto,

There are too many variables to consider suggesting a place to start. From what you describe ...... you need to take the car to a good mechanic to diagnose.

I've been there myself ..... turned out to be 14 mouse chewed wires under the fuse box.  Good Luck!