Circuit description
The D-4S system has the cylinder direct fuel injection method, which directly injects highly pressurized fuel into the combustion chamber, and the port injection method, which injects fuel into the intake port. The D-4S uses one or the other depending on the engine driving status. The engine control computer monitors the port injector's injection control. If a malfunction occurs in a port injector circuit, the injection control for the related cylinder is stopped, and the engine control computer turns on the MIL.
| DTC No. | DTC detection conditions | Suspected parts |
|---|---|---|
| P0201 | Consecutively receives diagnosis information (open circuit detection / GND short circuit / +B short circuit or overheating) from the fuel injector IC 10 times or more (No. 1 cylinder) (1 trips detection logic) |
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| P0202 | Consecutively receives diagnosis information (open circuit detection / GND short circuit / +B short circuit or overheating) from the fuel injector IC 10 times or more (No. 2 cylinder) (1 trips detection logic) |
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| P0203 | Consecutively receives diagnosis information (open circuit detection / GND short circuit / +B short circuit or overheating) from the fuel injector IC 10 times or more (No. 3 cylinder) (1 trips detection logic) |
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| P0204 | Consecutively receives diagnosis information (open circuit detection / GND short circuit / +B short circuit or overheating) from the fuel injector IC 10 times or more (No. 4 cylinder) (1 trips detection logic) |
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