Audi P1203: Cylinder 3 Fuel Injection Circuit Electrical Malfunction
Is your scanner showing Audi P1203?
No worries. We'll show you what it means and how to deal with it.
Audi P1203: Cylinder 3 Fuel Injection Circuit Electrical Malfunction
OVERVIEWWhat Does The Audi P1203 Code Mean?
This code is set in this condition:
Key on or engine running, fuses in the instrument panel and the E-box in the engine compartment must be functioning, and the ground connections between the engine ad the chassis must be well connected; and the ECM detected an unexpected voltage condition on the injector circuit.
What Are The Potential Causes Of The Audi P1203 Code?
Below are some potential causes of this DTC:
- Injector control circuit is open
- Injector power circuit (B+) is open
- Injector control circuit is shorted to chassis ground
- Injector is damaged or has failed
- ECM is not connected or has failed
- Fuel pump relay has failed
- Fuel injectors may have malfunctioned
- Faulty engine speed sensor
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> Twippo 372Pcs Waterproof Wire Connectors Kit
>>> EPSIRMP 06H906036G 4pcs Fuel Injectors Compatible with Audi A3 A4 A5 A6 Q3 Q5 TT
>>> URO Parts 191906383C Fuel Pump Relay
>>> Beck/Arnley 090-5145 Vehicle Speed Sensor
>>> Audi Engine Control Module
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Audi P1203, DTCDECODE.
