PowertrainP3003
CautionSeverity: Caution - get it checked when you can
Relay for low-output preheating of coolant (J359): short to plus; Short to plus
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?
Watch the temperature gauge. Stop safely and let the engine cool if the gauge climbs, steam appears, or a red warning light comes on.
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 16
| Brand | Code | Description | System |
|---|---|---|---|
| Chery | P3003 | Relay for Low-Output Preheating of Coolant (J359): Short to Plus Brand | Powertrain |
| Daewoo | P3003 | Engine coolant heater relay 1, low output Brand | Powertrain |
| DFXK | P3003 | Relay for Low-Output Preheating of Coolant (J359): Short to Plus Brand | Powertrain |
| EOBD | P3003 | A/C-afsluitklep Brand | Powertrain |
| Geely | P3003 | Relay for Low-Output Preheating of Coolant (J359): Short to Plus Brand | Powertrain |
| GM | P3003 | Engine coolant heater relay 1, low output Brand | Powertrain |
| Holden | P3003 | Hybrid/EV Battery DC Charging Positive Voltage Sensor Circuit High Voltage Brand | Powertrain |
| Hyundai | P3003 | No description available | Powertrain |
| Land Rover | P3003 | Driveline Disconnect Actuator Motion/Position Sensor Signal Circuit Brand | Powertrain |
| Mitsubishi | P3003 | Rail pressure too low Brand | Powertrain |
| Opel | P3003 | Engine coolant heater relay 1, low output Brand | Powertrain |
| Peugeot | P3003 | No description available | Powertrain |
| Proton | P3003 | Rail pressure too low Brand | Powertrain |
| Saab | P3003 | Engine coolant heater relay 1, low output Brand | Powertrain |
| Tata | P3003 | No description available | Powertrain |
| Volkswagen | P3003 | Relay for low-output preheating of coolant (J359): short to plus; Short to plus 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 P3003 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | P300300 | No description available | Powertrain |
| SsangYong | P300300 | System voltage out of range Brand | Powertrain |
| Mercedes-Benz | P300308 | Lost Communication With Instrument Panel Cluster (IPC) Control Module. Missing Message Brand | Powertrain |
| Mercedes-Benz | P30036D | No description available | Powertrain |
| Sprinter | P30036D | No description available | Powertrain |
6Related codes
Browse Pxxx codes or P300xx codes.