PowertrainP1756
CautionSeverity: Caution - get it checked when you can
SMG: Gear cannot be engaged
Key terms: Control module: a small computer that runs one part of the car · 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 19
| Brand | Code | Description | System |
|---|---|---|---|
| BMW | P1756 | SMG: Gear cannot be engaged Brand | Powertrain |
| BYD | P1756 | Gear R gear hardware failure Brand | Powertrain |
| Chery | P1756 | Odd gear engagement solenoid valve Brand | Powertrain |
| Daewoo | P1756 | Shift Solenoid B Perf Brand | Powertrain |
| DFFS | P1756 | No description available | Powertrain |
| DFXK | P1756 | Tiptronic Recognition Switch (F189): Open or Short to Plus Brand | Powertrain |
| EOBD | P1756 | EMC belső hiba Brand | Powertrain |
| Geely | P1756 | Tiptronic Recognition Switch (F189): Open or Short to Plus Brand | Powertrain |
| GM | P1756 | Shift Solenoid B Perf Brand | Powertrain |
| Holden | P1756 | Odd Gear Clutch Solenoid Valve Brand | Powertrain |
| Hyundai | P1756 | No description available | Powertrain |
| Land Rover | P1756 | Shift Solenoid B Performance Brand | Powertrain |
| Maserati | P1756 | No description available | Powertrain |
| Opel | P1756 | Shift Solenoid B Perf Brand | Powertrain |
| Peugeot | P1756 | No description available | Powertrain |
| Saab | P1756 | Shift Solenoid B Perf Brand | Powertrain |
| MG (SAIC) | P1756 | EV1 Circuit Open Brand | Powertrain |
| Subaru | P1756 | Secondary Pressure Control Performance Brand | Powertrain |
| Suzuki | P1756 | L/PRESS CONT/FNCTN 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 2
These 7-character codes are manufacturer-specific variants of P1756 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | P175600 | Ladeluftdrucksensor Symptom elektrischer Fehler Lowpegel Brand | Powertrain |
| Sprinter | P175600 | Ladeluftdrucksensor Symptom elektrischer Fehler Lowpegel Brand | Powertrain |
6Related codes
Browse Pxxx codes or P175xx codes.