F5C Temperature Sensor Circuit (T2) Downstream Oxicat - High Error Red
ISM-IDI DPF Intake Temperature Sensor High Voltage Amber
ISM-DI Exhaust Gas Temperature 1 Sensor Signal Too High 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.