System Diagnostics - Scytek electronic Vectra X55 series Product Manual

Starter Diagnostics
Starter doesn't start and parking lights flash:
3 Times - Engine RPM not detected (check tach wire and/or perform tach learn procedure)
Hood Trigger is active (hood is open, wire is shorted to ground or pin switch is
defective)
4 Times - Brake Trigger is active ( Brake switch input is shorted to ground or incorrect)
5 Times - Unit is in Valet (service) mode, and start is disabled.
6 Times - Emergency Brake Disengaged ( Manual Transmission )
7 Times - Start Canceled ( Manual Transmission )
VECTRA X55 - Page 31