PowertrainP1203
CautionSeverity: Caution - get it checked when you can
Cylinder 3 injector
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 30
| Brand | Code | Description | System |
|---|---|---|---|
| Ashok Leyland CV | P1203 | No description available | Powertrain |
| BAIC Motor | P1203 | Different HSD circuit short Brand | Powertrain |
| BYD | P1203 | Injector charge problem Brand | Powertrain |
| Chery | P1203 | A phase overcurrent Brand | Powertrain |
| Daewoo | P1203 | Cylinder #3 Injector Circ Open/Shorted Brand | Powertrain |
| DFFS | P1203 | No description available | Powertrain |
| DFFX | P1203 | Different HSD short circuit Brand | Powertrain |
| DFXK | P1203 | Cylinder 3 injection signal fault Brand | Powertrain |
| EOBD | P1203 | Injektor valja 3 Brand | Powertrain |
| Geely | P1203 | CNG Nozzle 3 Fault Brand | Powertrain |
| GM | P1203 | Cylinder #3 Injector Circ Open/Shorted Brand | Powertrain |
| Great Wall | P1203 | Injector charge problem Brand | Powertrain |
| Hafei | P1203 | Injector charge problem Brand | Powertrain |
| Holden | P1203 | Cylinder 3 Alternative Fuel Injector Control Circuit Brand | Powertrain |
| Honda | P1203 | No description available | Powertrain |
| Hyundai | P1203 | No description available | Powertrain |
| Isuzu | P1203 | No description available | Powertrain |
| Land Rover | P1203 | Injection circuit open/shorted - cylinder 3 Brand | Powertrain |
| Mahindra | P1203 | No description available | Powertrain |
| Mitsubishi | P1203 | Injector charge problem Brand | Powertrain |
| Opel | P1203 | Cylinder #3 Injector Circ Open/Shorted Brand | Powertrain |
| Peugeot | P1203 | No description available | Powertrain |
| Porsche | P1203 | No description available | Powertrain |
| Proton | P1203 | Injector charge problem Brand | Powertrain |
| Saab | P1203 | Cylinder #3 Injector Circ Open/Shorted Brand | Powertrain |
| MG (SAIC) | P1203 | Rotary Position Sensor Error Brand | Powertrain |
| Subaru | P1203 | No description available | Powertrain |
| Suzuki | P1203 | Injector Circuit / Open - Cylinder3 (Injector No.3-2) Brand | Powertrain |
| Tata | P1203 | CNG Injector 1 Circuit Low Brand | Powertrain |
| Toyota | P1203 | Cylinder 3 injector 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 4
These 7-character codes are manufacturer-specific variants of P1203 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| SsangYong | P120300 | Motor Control Unit (MCU): 3-phase current overcurrent hardware detection Brand | Powertrain |
| SsangYong | P120301 | Coolant temperature sensor error Brand | Powertrain |
| SsangYong | P120311 | Proximity sensing circuit short to ground Brand | Powertrain |
| SsangYong | P120312 | Proximity sensing circuit short to battery (+) Brand | Powertrain |
6Related codes
Browse Pxxx codes or P120xx codes.