LEXUS
L-SB-0009-24 Rev1
Manufacturer communications
- Publication date
- 2025-06-25
- Received by NHTSA
- 2025-07-10
- NHTSA record numbers
- 11020669
Manufacturer summary
Original wording in English
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
•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
Reported code forms
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
Lexus
P030000Random/Multiple Cylinder Misfire DetectedLexus
P030027Random/Multiple Cylinder Misfire Detected (Emission) Signal Rate of Change Above ThresholdLexus
P030100Cylinder 1 Misfire DetectedLexus
P030200Cylinder 2 Misfire DetectedLexus
P030300Cylinder 3 Misfire DetectedLexus
P030400Cylinder 4 Misfire DetectedCheck vehicle applicability
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.