F5C Engine Regulated 5 Volt Sensor Supply # 1 - Too High. (A = 60pin Connector - Engine A07 A08 A09 A10 A11 A12 A13) Amber
If Inadequate air flow is problematic, so clogged air filters, evaporator core air flow restricted, faulty blower fan motors, defective blower switch or faulty wiring or loose connections.