PowertrainP1543
CautionSeverity: Caution - get it checked when you can
Air conditioning relay circuit
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 25
| Brand | Code | Description | System |
|---|---|---|---|
| BAIC Motor | P1543 | Generator electrical status abnormal Brand | Powertrain |
| Chery | P1543 | Generator electrical fault Brand | Powertrain |
| Daewoo | P1543 | Pedal position sensor Brand | Powertrain |
| Daihatsu | P1543 | Engine hood switch fault Brand | Powertrain |
| DFFS | P1543 | Generator electronic fault Brand | Powertrain |
| DFXK | P1543 | Angle Sensor 1 for Throttle Actuator (G187): Signal too Small Brand | Powertrain |
| EOBD | P1543 | Akuvooluandur B Brand | Powertrain |
| Geely | P1543 | Angle Sensor 1 for Throttle Actuator (G187): Signal too Small Brand | Powertrain |
| GM | P1543 | A/C refrigerant low Brand | Powertrain |
| Holden | P1543 | Generator Electrical Malfunction Brand | Powertrain |
| Hyundai | P1543 | No description available | Powertrain |
| Land Rover | P1543 | No description available | Powertrain |
| Maserati | P1543 | No description available | Powertrain |
| Mitsubishi | P1543 | DOR tampering monitor Brand | Powertrain |
| Opel | P1543 | A/C refrigerant low Brand | Powertrain |
| Perodua | P1543 | Engine hood switch fault Brand | Powertrain |
| Peugeot | P1543 | No description available | Powertrain |
| Porsche | P1543 | No description available | Powertrain |
| Proton | P1543 | DOR tampering monitor Brand | Powertrain |
| Saab | P1543 | A/C Refrigerant Low Brand | Powertrain |
| MG (SAIC) | P1543 | Generator Electrical Error Brand | Powertrain |
| Suzuki | P1543 | Engine Oil pressure Sensor / Switch '1' / '2' Voltage Correlation Brand | Powertrain |
| Tata | P1543 | No description available | Powertrain |
| Toyota | P1543 | Air conditioning relay circuit Brand | Powertrain |
| Volkswagen | P1543 | Angle Sensor 1 for Throttle Actuator (G187): Signal too Small 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 P1543 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | P154300 | Turbolader-Kühlerpumpe, Endstufe Übertemperaturfehler Brand | Powertrain |
| Sprinter | P154300 | Turbolader-Kühlerpumpe, Endstufe Übertemperaturfehler Brand | Powertrain |
6Related codes
Browse Pxxx codes or P154xx codes.