1. DTC P0201 description
The ECM calculates the optimum fuel injection ON time based on the data sent from various sensors. The ECM supplies high voltage to the injector charge voltage circuit, grounds the injector solenoid control circuit, and drives the cylinder injectors. If the ECM detects an abnormal condition in the cylinder No. 1 injector circuit, the DTC is set.
2. Condition for setting DTC P0201
Condition for running the DTC
- The battery voltage is 9 to 16 V.
- The ignition switch is ON.
- The engine is running.
Condition for setting the DTC
- The ECM detects that there is an open circuit in the injector solenoid circuit for 3 seconds.
3. Action taken when DTC P0201 sets
- Euro4: The ECM illuminates the MIL. Refer to Action taken when DTC sets - Type A (Euro4).
- Except Euro4: The ECM illuminates the check engine warning light. Refer to Action taken when DTC sets - Type A (Except Euro4).
Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC type definitions".
- The ECM limits the fuel injection quantity.
- The ECM inhibits the EGR control.
- The ECM inhibits the cruise control.
4. Condition for clearing DTC P0201
- Euro4: Refer to Condition for clearing the MIL/DTC - Type A or Type B (Euro4).
- Except Euro4: Refer to Condition for clearing the check engine warning light/DTC - Type A or Type B (Except Euro4).
Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC type definitions".