What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P050B00Cold Start Ignition Timing PerformanceManufacturer communications
2Original wording in English
LEXUS
Reported code forms P050B
Dealer Packet: The engine ECU (electronic control unit) in the subject vehicles has improper programming which, under certain operating conditions, may result in improper emissions control for a short period following a…
LEXUS
Reported code forms P050B00
TSB: Some 2018 model year LS 500 vehicles equipped with a V35A-FTS engine may exhibit a MIL ?ON? condition with Diagnostic Trouble Code (DTC) P050B00 (Cold Start Ignition Timing Performance). The Engine Control…
Check vehicle applicability
1A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Lexus | LS500 | 2018 |
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.