P0204 - Injector Circuit Open – Cylinder 4

System Information

Injectors are used to deliver a controlled amount of fuel to the engine cylinder. Injectors can use either a Solenoid or a Piezo element as the method of operation. Injector control circuits will operate at different Voltages depending on the system and type of injector fitted.

The Control Unit has detected a fault with the Injector Control Circuit. The control signal may be outside of normal parameters, corrupt, non existent, or at a constant value.

Recommended Tests

It is recommended to check the following systems and components.