Archives: DTC Codes

What Does Code P1199 Mean? DTC P1199 indicates that the Engine Control Module (ECM) or Powertrain Control Module (PCM) has detected an abnormally low voltage signal from the fuel level sender input circuit. The fuel level sender unit, typically integrated into the fuel pump assembly inside the fuel tank, uses a float mechanism connected to […]

What Does Code P1200 Mean? The OBD-II diagnostic trouble code P1200 signifies a general malfunction within the Injector Control Circuit. This code is typically set by the Engine Control Module (ECM) or Powertrain Control Module (PCM) when it detects an electrical anomaly within the circuit responsible for firing the fuel injectors. Unlike specific injector codes […]

What Does Code P1201 Mean? The OBD-II diagnostic trouble code P1201 indicates that the Engine Control Module (ECM), also commonly referred to as the Powertrain Control Module (PCM), has detected an electrical fault within the control circuit for the #1 fuel injector. This code specifically points to an “Injector Circuit Open or Shorted” condition for […]

What Does Code P1202 Mean? Diagnostic Trouble Code (DTC) P1202 indicates an electrical malfunction within the fuel injector circuit for Cylinder #2. The Engine Control Module (ECM) or Powertrain Control Module (PCM) continuously monitors the electrical characteristics of each fuel injector circuit, including current flow, voltage drop, and resistance. When the ECM/PCM detects a condition […]

What Does Code P1203 Mean? DTC P1203 indicates a detected malfunction within the electrical control circuit of the fuel injector for Cylinder #3. The Engine Control Module (ECM), also known as the Powertrain Control Module (PCM), monitors the electrical characteristics of each fuel injector circuit. When the ECM detects an electrical resistance or voltage signature […]

What Does Code P1204 Mean? The diagnostic trouble code P1204 indicates an electrical malfunction within the fuel injector circuit for cylinder number 4. Specifically, the Engine Control Module (ECM), also known as the Powertrain Control Module (PCM), has detected either an “open circuit” or a “short circuit” condition. An open circuit implies a break in […]

What Does Code P1205 Mean? DTC P1205 indicates that the Engine Control Module (ECM), also known as the Powertrain Control Module (PCM), has detected an electrical anomaly within the circuit responsible for operating the fuel injector on cylinder #5. Specifically, the code signifies either an “Open” circuit or a “Shorted” circuit. The ECM monitors the […]

What Does Code P1206 Mean? The diagnostic trouble code P1206 signifies a detected electrical malfunction within the control circuit of the fuel injector for Cylinder #6. This code is classified under manufacturer-controlled fuel and air metering systems. The Engine Control Module (ECM), also known as the Powertrain Control Module (PCM), continuously monitors the electrical characteristics […]

What Does Code P1209 Mean? DTC P1209 signifies a general fault within the Injector Control Pressure (ICP) system. This code is typically set by the Engine Control Module (ECM) or Powertrain Control Module (PCM) when it detects that the actual ICP, as measured by the ICP sensor, deviates significantly from the desired ICP value for […]

What Does Code P1210 Mean? The OBD-II diagnostic trouble code P1210 signifies that the Engine Control Module (ECM), also known as the Powertrain Control Module (PCM), has detected an Injector Control Pressure (ICP) level that is consistently above the expected or desired value. This code is most commonly associated with diesel engines utilizing a high-pressure […]