PowertrainP146D
CautionSeverity: Caution - get it checked when you can
Feedback from reductant tank heater 1: short to plus; No signal/communication
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 13
| Brand | Code | Description | System |
|---|---|---|---|
| BYD | P146D | NO. 366 battery voltage sampling wire loop fault Brand | Powertrain |
| Chery | P146D | Particulate oxidation catalysts (POC) differential pressure sensor signal failure from CAN bus Brand | Powertrain |
| Daewoo | P146D | No description available | Powertrain |
| DFXK | P146D | Diesel particulate filter POC CAN signal error Brand | Powertrain |
| EOBD | P146D | Kyllästys 1:n lämmityksen vahvistus Brand | Powertrain |
| GM | P146D | No description available | Powertrain |
| Great Wall | P146D | CAN information error Brand | Powertrain |
| Holden | P146D | EVAP Purge System Pressure Sensor Circuit Low Voltage Brand | Powertrain |
| Isuzu | P146D | No description available | Powertrain |
| Opel | P146D | No description available | Powertrain |
| Peugeot | P146D | No description available | Powertrain |
| Saab | P146D | No description available | Powertrain |
| Volkswagen | P146D | Feedback from reductant tank heater 1: short to plus; No signal/communication 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.
5Related codes
Browse Pxxx codes or P146xx codes.