PowertrainP1178
CautionSeverity: Caution - get it checked when you can
DME: Switch time, ox.sensor, bank 1
Key terms: Control module: a small computer that runs one part of the car · Bank 1: the side of the engine containing cylinder 1 · 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 21
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | P1178 | No description available | Powertrain |
| BMW | P1178 | DME: Switch time, ox.sensor, bank 1 Brand | Powertrain |
| BYD | P1178 | NO. 377 battery voltage sampling wire loop fault Brand | Powertrain |
| Chery | P1178 | Linear oxygen sensor: Pump Current: Open Circuit Brand | Powertrain |
| Daewoo | P1178 | Boltup Limits Brand | Powertrain |
| DFXK | P1178 | Linear O2 Sensor: Pump Current: Open Circuit Brand | Powertrain |
| EOBD | P1178 | Atidaryta Brand | Powertrain |
| Geely | P1178 | Linear O2 Sensor: Pump Current: Open Circuit Brand | Powertrain |
| GM | P1178 | No description available | Powertrain |
| Holden | P1178 | Fuel Pump Driver Control Module Fuel Level Sensor 1 Internal Supply Circuit Brand | Powertrain |
| Hyundai | P1178 | No description available | Powertrain |
| Isuzu | P1178 | No description available | Powertrain |
| Land Rover | P1178 | Banks 1 and 2 Long Term Fuel Trim Too Lean Brand | Powertrain |
| Maserati | P1178 | No description available | Powertrain |
| Mitsubishi | P1178 | Reactor over current Brand | Powertrain |
| Opel | P1178 | Boltup Limits Brand | Powertrain |
| Peugeot | P1178 | No description available | Powertrain |
| Porsche | P1178 | Bankdifferenz Abgastemperatur-Regelung - plaus Brand | Powertrain |
| Proton | P1178 | Reactor over current Brand | Powertrain |
| Saab | P1178 | Boltup Limits Brand | Powertrain |
| Sprinter | P1178 | No description available | 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 17
These 7-character codes are manufacturer-specific variants of P1178 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Great Wall | P117800 | BSG(Belt-driven starter generator) has no other fault except Brand | Powertrain |
| SsangYong | P117812 | Cruise control signal circuit short to battery (+) or stuck on Brand | Powertrain |
| Peugeot | P117829 | No description available | Powertrain |
| Peugeot | P117830 | No description available | Powertrain |
| Peugeot | P117831 | No description available | Powertrain |
| Peugeot | P117832 | No description available | Powertrain |
| Peugeot | P117833 | No description available | Powertrain |
| Peugeot | P117834 | No description available | Powertrain |
| Peugeot | P117835 | No description available | Powertrain |
| Peugeot | P117836 | No description available | Powertrain |
| Peugeot | P117837 | No description available | Powertrain |
| Peugeot | P117838 | No description available | Powertrain |
| Peugeot | P117839 | No description available | Powertrain |
| Peugeot | P117842 | No description available | Powertrain |
| Peugeot | P117851 | No description available | Powertrain |
| Peugeot | P117852 | No description available | Powertrain |
| Peugeot | P117853 | No description available | Powertrain |
6Related codes
Browse Pxxx codes or P117xx codes.