L-SB-0009-24 Rev1

Some 2021 – 2024 model year ES 250 and 2022 – 2024 model year NX 250 vehicles with A25A-FKS engines may have a MIL ON condition with one or more of the following Diagnostic Trouble Codes (DTCs) upon cold soak start up with engine coolant temperatures between 14°F – 41°F:
•P030027 – Random/Multiple Cylinder Misfire Detected (Emission) Signal Rate of Change Above Threshold
•P030000 – Random/Multiple Cylinder Misfire Detected
•P030100 – Cylinder 1 Misfire Detected
•P030200 – Cylinder 2 Misfire Detected
•P030300 – Cylinder 3 Misfire Detected
•P030400 – Cylinder 4 Misfire Detected