P0205 Toyota
The P0205 code for a Toyota refers to an Injector Circuit Malfunction in Cylinder 5. This fault occurs when the Engine Control Module (ECM) detects an issue with the electrical circuit or operation of the fuel injector for cylinder 5.
Causes:
- Faulty fuel injector – The injector may be clogged or damaged.
- Wiring issues – Open, shorted, or corroded injector circuit wiring or connectors.
- Faulty ECM – Rare, but the engine computer may malfunction.
- Poor fuel quality – Contaminants can clog injectors over time.
Symptoms:
- Check Engine Light (CEL) is illuminated.
- Rough idle or misfires.
- Reduced engine performance.
- Poor fuel economy.
- Difficulty starting the engine.
Fixes:
- Inspect and repair wiring – Check for loose connections, frayed wires, or corrosion.
- Test cylinder 5 injector – Use a multimeter or a noid light to test voltage and pulse width.
- Replace the fuel injector if it is clogged or malfunctioning.
- Test the ECM if no injector faults are found.
- Perform a fuel system cleaning to remove deposits.
Diagnosis:
- Use an OBD-II scanner to confirm the P0205 code and monitor live data.
- Check injector resistance and voltage to ensure it is within specification.
- Perform a visual inspection of the fuel injector circuit.
If you are not comfortable performing these steps, it is advisable to have a professional mechanic diagnose and repair the issue, as it can affect drivability and engine safety.
P0205 Injector Circuit Malfunction in Cylinders 1 2 3 4 5..8
P0201 – P0202 – P0203 – P0204 – P0204 – P0205 – P0206 – P0207 and P0208