PowertrainP1793
CautionSeverity: Caution - get it checked when you can
Wheel speed signal malfunction
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 26
| Brand | Code | Description | System |
|---|---|---|---|
| BAIC Motor | P1793 | Drive motor power generation mode failure Brand | Powertrain |
| BMW | P1793 | No description available | Powertrain |
| BYD | P1793 | Rear wheel speed sensor Brand | Powertrain |
| Chery | P1793 | Rear wheel speed sensor Brand | Powertrain |
| Chrysler | P1793 | Engine torque reduction Brand | Powertrain |
| Daewoo | P1793 | Gear 2 Incorrect Ratio Brand | Powertrain |
| DFFX | P1793 | Rear wheel speed sensor Brand | Powertrain |
| DFXK | P1793 | Transmission Output Speed Sensor 2 (G196): No Signal Brand | Powertrain |
| EOBD | P1793 | 2-6 remdruk Brand | Powertrain |
| Fiat | P1793 | Loss of torque management signal Brand | Powertrain |
| Geely | P1793 | Rear wheel speed sensor Brand | Powertrain |
| GM | P1793 | Intake Air Volume Circuit Brand | Powertrain |
| Great Wall | P1793 | Rear wheel speed sensor Brand | Powertrain |
| Hafei | P1793 | Rear wheel speed sensor Brand | Powertrain |
| Holden | P1793 | Vehicle Speed Sensor Performance Brand | Powertrain |
| Honda | P1793 | No description available | Powertrain |
| Isuzu | P1793 | No description available | Powertrain |
| Land Rover | P1793 | Battery voltage too low - Below 7 volts - Automatic transmission only Brand | Powertrain |
| Mitsubishi | P1793 | Rear wheel speed sensor Brand | Powertrain |
| Opel | P1793 | Intake Air Volume Circuit Brand | Powertrain |
| Peugeot | P1793 | No description available | Powertrain |
| Porsche | P1793 | Magnetventil C Kurzschluss nach Masse oder Unterbrechung Brand | Powertrain |
| Proton | P1793 | Rear wheel speed sensor Brand | Powertrain |
| Saab | P1793 | Intake Air Volume Circuit Brand | Powertrain |
| Suzuki | P1793 | No description available | Powertrain |
| Toyota | P1793 | Wheel speed signal malfunction 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 P1793 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | P179300 | SCRI RC USAdBlueWarn1 Brand | Powertrain |
| Sprinter | P179300 | SCRI RC USAdBlueWarn1 Brand | Powertrain |
6Related codes
Browse Pxxx codes or P179xx codes.