DTC P0472-00: Exhaust Gas Pressure Sensor Circuit Low Input
WARNING: This page is about a different variant/trim than selected.
P0472-00: (PCM - VIN Y) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
Exhaust gas pressure sensor circuit low input |
| Detection condition |
- If the input voltage at the PCM terminal 1BA is standard or less, the PCM determines that the exhaust gas pressure sensor circuit has a malfunction.
Precondition
- Battery voltage: 8 V or more
- 0.5 s have elapsed after the ignition was switched ON (engine off or on)
|
| Fail-safe |
- Inhibits the EGR control.
|
| Possible cause |
- Malfunction in wiring harness (including connector/terminal) between PCM and exhaust gas pressure sensor (see CIRCUIT INSPECTION
.) (see CONNECTOR INSPECTION
.)
- Exhaust gas pressure sensor malfunction (Refer to EXHAUST GAS PRESSURE SENSOR INSPECTION (VIN Y)
in the service information.)
- PCM malfunction (Refer to applicable PCM REMOVAL/INSTALLATION (VIN Y)
in the service information.)
|
| Repeatability verification procedure |
- Clear the DTC recorded in the memory. (see CLEARING DTC
.)
- Perform the KOEO or KOER self test. (See DTC INSPECTION
.)
|
 Courtesy of MAZDA MOTORS CORP.
|
| 1 |
PCM |
| 2 |
Exhaust gas pressure sensor |