PowertrainP1D54
CautionSeverity: Caution - get it checked when you can
Power network AC voltage too high
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 5
| Brand | Code | Description | System |
|---|---|---|---|
| BYD | P1D54 | Power network AC voltage too high Brand | Powertrain |
| EOBD | P1D54 | Lader funksjonsfeil Brand | Powertrain |
| Mitsubishi | P1D54 | Charger functional fail Brand | Powertrain |
| Proton | P1D54 | Charger functional fail Brand | Powertrain |
| MG (SAIC) | P1D54 | DCDC Not In Active Mode Error 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 5
These 7-character codes are manufacturer-specific variants of P1D54 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | P1D54FB | Current sensor A of the power factor correction module of the on-board charger has an electrical fault. R1 B Brand | Powertrain |
| Mercedes-Benz | P1D54FC | Current sensor A of the power factor correction module of the on-board charger has an electrical fault. R2 A Brand | Powertrain |
| Mercedes-Benz | P1D54FD | Current sensor A of the power factor correction module of the on-board charger has an electrical fault. R2 B Brand | Powertrain |
| Mercedes-Benz | P1D54FE | Current sensor A of the power factor correction module of the on-board charger has an electrical fault. R3 A Brand | Powertrain |
| Mercedes-Benz | P1D54FF | Current sensor A of the power factor correction module of the on-board charger has an electrical fault. R3 B Brand | Powertrain |
6Related codes
Browse Pxxx codes or P1D5xx codes.