PowertrainP1401
CautionSeverity: Caution - get it checked when you can
Differential Pressure Feedback Electronic (DPFE) Circuit High Input
Key terms: Control module: a small computer that runs one part of the car · SAE J2012: the standard generic code list · Powertrain: engine, transmission and emissions
1What it means in plain English
The engine or powertrain control system has stored a fault that does not have specific guidance in this database yet.
2Common causes
- Sensor or actuator fault
- Wiring or connector fault
- Vacuum or intake leak
- Fuel or ignition problem
- Control module fault
3Can I drive?
Have it diagnosed promptly. If the car runs and drives normally, drive gently to a workshop. If it runs badly, stalls, overheats, loses oil pressure, or a warning light is flashing or red, stop safely and get professional help. If the code concerns the brakes, brake vacuum or brake assist, do not drive until it is checked: a hard pedal or longer stopping distance means stop.
This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.
4Brand data 39
| Brand | Code | Description | System |
|---|---|---|---|
| Ashok Leyland CV | P1401 | Differential Pressure Feedback Electronic (DPFE) Circuit High Input SAE | Powertrain |
| BAIC Motor | P1401 | Exhaust Gas Recirculation (EGR) differential pressure sensor pressure difference too large Brand | Powertrain |
| Mercedes-Benz | P1401 | Differential Pressure Feedback Electronic (DPFE) Circuit High Input SAE | Powertrain |
| BYD | P1401 | NO. 258 battery voltage sampling wire loop fault Brand | Powertrain |
| Chery | P1401 | AGS1 stuck fault Brand | Powertrain |
| Chrysler | P1401 | Implausible Engine Speed Signal Received Brand | Powertrain |
| Daewoo | P1401 | EGR Temp Sensor Brand | Powertrain |
| Daihatsu | P1401 | Ion system Brand | Powertrain |
| DFFS | P1401 | Exhaust gas recirculation (EGR) temperature sensor Brand | Powertrain |
| DFXK | P1401 | EGR Valve (N18): Short to Ground Brand | Powertrain |
| EOBD | P1401 | Pulsasi pam Brand | Powertrain |
| Fiat | P1401 | Implausible engine speed signal received Brand | Powertrain |
| Ford | P1401 | Differential Pressure Feedback Electronic (DPFE) Circuit High Input SAE | Powertrain |
| Geely | P1401 | EGR Valve (N18): Short to Ground Brand | Powertrain |
| GM | P1401 | EGR Temp Sensor Brand | Powertrain |
| Great Wall | P1401 | Fan modulation pulse width overtemperature Brand | Powertrain |
| Holden | P1401 | Control Module Monitoring Processor Input Performance Brand | Powertrain |
| Honda | P1401 | Program update for EGR valve Brand | Powertrain |
| Hyundai | P1401 | Differential Pressure Feedback Electronic (DPFE) Circuit High Input SAE | Powertrain |
| Isuzu | P1401 | Differential Pressure Feedback Electronic (DPFE) Circuit High Input SAE | Powertrain |
| Land Rover | P1401 | Differential Pressure Feedback Electronic (DPFE) Circuit High Input SAE | Powertrain |
| Mahindra | P1401 | Differential Pressure Feedback Electronic (DPFE) Circuit High Input SAE | Powertrain |
| Maserati | P1401 | received engine speed signal implausible Brand | Powertrain |
| Mazda | P1401 | Differential Pressure Feedback Electronic (DPFE) Circuit High Input SAE | Powertrain |
| Mitsubishi | P1401 | Pump pulsation Brand | Powertrain |
| Nissan | P1401 | Differential Pressure Feedback Electronic (DPFE) Circuit High Input SAE | Powertrain |
| Opel | P1401 | EGR Temp Sensor Brand | Powertrain |
| Perodua | P1401 | Ion system Brand | Powertrain |
| Peugeot | P1401 | Differential Pressure Feedback Electronic (DPFE) Circuit High Input SAE | Powertrain |
| Porsche | P1401 | Differential Pressure Feedback Electronic (DPFE) Circuit High Input SAE | Powertrain |
| Proton | P1401 | Pump pulsation Brand | Powertrain |
| Saab | P1401 | EGR Temp Sensor Brand | Powertrain |
| Smart | P1401 | Differential Pressure Feedback Electronic (DPFE) Circuit High Input SAE | Powertrain |
| Sprinter | P1401 | ENV_ _Datum2 Brand | Powertrain |
| Subaru | P1401 | Differential Pressure Feedback Electronic (DPFE) Circuit High Input SAE | Powertrain |
| Suzuki | P1401 | EGR TEMP SEN/CIRC Brand | Powertrain |
| Tata | P1401 | Differential Pressure Feedback Electronic (DPFE) Circuit High Input SAE | Powertrain |
| Toyota | P1401 | Exhaust gas recirculation (EGR) temperature sensor Brand | Powertrain |
| Volkswagen | P1401 | EGR valve (N18): short to ground; Short to plus Brand | Powertrain |
Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.
5Extended variant codes 29
These 7-character codes are manufacturer-specific variants of P1401 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | P140100 | The output for relay 'Circuit 87C (drivetrain control unit)' has an electrical fault or open circuit Brand | Powertrain |
| SsangYong | P140100 | Motor Control Unit (MCU): Insulated Gate Bipolar Transistor (IGBT) upper bridge error Brand | Powertrain |
| SsangYong | P140101 | Battery sensor cable error (BS_invalid) Brand | Powertrain |
| SsangYong | P140102 | Battery sensor cable error (state of charge) Brand | Powertrain |
| SsangYong | P140103 | Battery sensor cable error (state of health) Brand | Powertrain |
| SsangYong | P140104 | Battery sensor cable error (battery current) Brand | Powertrain |
| SsangYong | P140105 | Battery sensor cable error (battery voltage) Brand | Powertrain |
| SsangYong | P140106 | Battery sensor cable error (battery temperature) Brand | Powertrain |
| SsangYong | P140107 | Battery sensor cable error (nominal capacity) Brand | Powertrain |
| SsangYong | P140108 | Battery sensor cable error (open circuit voltage) Brand | Powertrain |
| SsangYong | P140109 | 12 V low voltage battery State Of Charge (SOC) below 80% Brand | Powertrain |
| Peugeot | P140112 | No description available | Powertrain |
| Peugeot | P140113 | No description available | Powertrain |
| Peugeot | P140114 | No description available | Powertrain |
| Peugeot | P140115 | No description available | Powertrain |
| Peugeot | P140117 | No description available | Powertrain |
| Peugeot | P140120 | No description available | Powertrain |
| Peugeot | P140121 | No description available | Powertrain |
| Peugeot | P140137 | No description available | Powertrain |
| Peugeot | P140141 | No description available | Powertrain |
| Peugeot | P140142 | No description available | Powertrain |
| Peugeot | P140143 | No description available | Powertrain |
| Peugeot | P140144 | No description available | Powertrain |
| Peugeot | P140146 | No description available | Powertrain |
| Peugeot | P140147 | No description available | Powertrain |
| Peugeot | P140148 | No description available | Powertrain |
| Peugeot | P140150 | No description available | Powertrain |
| Peugeot | P140151 | No description available | Powertrain |
| Peugeot | P140194 | No description available | Powertrain |
6Related codes
Browse Pxxx codes or P140xx codes.