Details On DTCs
WARNING: This page is about a different variant/trim than selected.
DTC P0401:00 (PCM, VIN Y) DETECTION CONDITION AND POSSIBLE CAUSE
| DESCRIPTION |
EGR flow insufficient detected |
| DETECTION CONDITION |
Determination conditions |
- When the following condition is met, the EGR volume is lower than the specification for the target value for a continuous specified time.
|
| Preconditions |
- 2 s has passed since the following conditions are met:
- Intake air temperature: -3.0 °C {37 °F} or more*1
- Engine coolant temperature: 65.0 °C {149 °F} or more*1
- Engine speed: 1, 400-2, 600 rpm*1
- Fuel injection control: during fuel cut
- The following DTCs are not detected:
- Intake valve timing control system: P0010:00, P0011:00, and P0012:00
- CKP sensor and intake CMP sensor: P0016:00
- TP sensor: P0122:00, P0123:00, and P2135:00
- ECT sensor No. 1: P0116:00, P0117:00, and P0118:00
- MAP sensor: P0069:00, P0107:00 and P0108:00
- EGR valve control system: P0403:00
- MAF sensor: P0101:00, P0102:00, and P0103:00
- Exhaust gas pressure sensor: P0472:00 and P0473:00
- Boost pressure sensor: P0237:00 and P0238:00
- HO2S: P013A:00
- Intake manifold is normal
- Difference between target valve timing and actual valve timing of electric variable valve timing: 3° or less
- Purge control: not active
- Charging efficiency: above 0.26
*1
: Standard can be verified by displaying PIDs using MMDS |
| |
Drive cycle |
|
| Self test type |
|
| Sensor used |
- EGR valve
- MAF sensor
- MAP sensor
- Exhaust gas pressure sensor
|
| FAIL-SAFE FUNCTION |
Not applicable |
| VEHICLE STATUS WHEN DTCs ARE OUTPUT |
- The following vehicle conditions differ depending on the type of malfunction
- Illuminates the check engine light
|
| POSSIBLE CAUSE |
- Erratic signal to PCM
- MAF sensor signal malfunction
- MAP sensor signal malfunction
- Input signal part connector or terminals malfunction
- Input signal part related circuit malfunction
- EGR valve malfunction (stuck close)
- Air suction in intake air system between dynamic pressure turbo (DPT) and intake manifold
- EGR system passage malfunction (restriction)
- Exhaust gas pressure sensor malfunction
- PCM malfunction
|