1. DTC P1404 description
The ECM controls the opening position of the EGR valve based on the driving condition of the engine by controlling the EGR motor. The EGR valve lift amount is detected by the position sensor and is sent to the ECM. If the ECM detects a difference between the actual 0-position and the calculated 0-position during EGR valve leaning, the DTC is set.
2. Condition for setting DTC P1404
Condition for running the DTC
- The ignition switch is OFF.
Condition for setting the DTC
- The ECM detects that the actual 0-position is not within the range of the calculated 0-position during EGR valve learning.
3. Action taken when DTC P1404 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(RZ4E-TC) DTC type definitions".
- The ECM limits the fuel injection quantity.
- The ECM inhibits the cruise control.
4. Condition for clearing DTC P1404
- 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(RZ4E-TC) DTC type definitions".