Reference meaning
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.
Narrow by vehicle
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
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.
Scan worksheet →Manufacturer communications
4Original wording in English
TOYOTA
TT: Some Model Year 2018-2022 vehicles equipped with A25A-FKS or A25A-FXS engines may experience a MIL ON condition with the following DTCs: P043F00, P043E00, P24007E, P24007F, P24187E
VOLKSWAGEN
MIL ON with DTCs P2400, P2404
VOLKSWAGEN
MIL ON with DTCs P2400, P2404.
VOLKSWAGEN
Tech Tips (3.6L ? MIL ON with DTCs P2400, P2404): This document informs for concerns of MIL ON and P2400/P2404. This can be caused by the change over valve on the water pump. The water pump has a vacuum controlled servo to control the flow of coolant. If the diaphragm fails, coolant can get into the vacuum supply line for the LD…
Check vehicle applicability
22A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
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.