Archives: DTC Codes

What Does Code P0185 Mean? DTC P0185 signifies a “Fuel Temperature Sensor B Circuit Malfunction.” This code is set by the Powertrain Control Module (PCM) or Engine Control Module (ECM) when it detects an electrical fault within the circuit of Fuel Temperature Sensor B. Fuel Temperature Sensor B is typically a Negative Temperature Coefficient (NTC) […]

What Does Code P0186 Mean? DTC P0186 indicates a malfunction within the Fuel Temperature Sensor “B” Circuit Range/Performance. The Engine Control Module (ECM), also known as the Powertrain Control Module (PCM), continuously monitors the electrical signal output from the Fuel Temperature Sensor (FTS) “B”. This sensor, typically a thermistor, measures the temperature of the fuel […]

What Does Code P0187 Mean? The diagnostic trouble code P0187, “Fuel Temperature Sensor B Circuit Low Input,” signifies that the Engine Control Module (ECM) or Powertrain Control Module (PCM) has detected a voltage signal from the Fuel Temperature Sensor B that is below its calibrated minimum threshold. Fuel Temperature Sensor B is typically a Negative […]

What Does Code P0188 Mean? Diagnostic Trouble Code (DTC) P0188 signifies that the Engine Control Module (ECM), often referred to as the Powertrain Control Module (PCM), has detected an excessively high voltage signal from the Fuel Temperature Sensor “B” circuit. This “high input” condition indicates that the voltage returned to the ECM from the sensor […]

What Does Code P0189 Mean? The diagnostic trouble code P0189, “Fuel Temperature Sensor B Circuit Intermittent,” indicates that the Powertrain Control Module (PCM) or Engine Control Module (ECM) has detected an inconsistent or erratic electrical signal from the Fuel Temperature Sensor (FTS) designated as “B.” This sensor is typically a thermistor, which changes its electrical […]

What Does Code P0190 Mean? DTC P0190 signifies a detected malfunction within the Fuel Rail Pressure (FRP) sensor circuit. This code indicates that the Engine Control Module (ECM), also commonly referred to as the Powertrain Control Module (PCM), has identified an electrical anomaly in the circuit responsible for monitoring fuel pressure within the common fuel […]

What Does Code P0191 Mean? The OBD-II Diagnostic Trouble Code P0191 indicates that the Engine Control Module (ECM) or Powertrain Control Module (PCM) has detected a range or performance issue within the Fuel Rail Pressure (FRP) sensor circuit. Specifically, this means the ECM/PCM is receiving a signal from the FRP sensor that is either erratic, […]

What Does Code P0192 Mean? DTC P0192, which stands for “Fuel Rail Pressure Sensor Circuit Low Input,” indicates that the Engine Control Module (ECM) or Powertrain Control Module (PCM) has detected a voltage signal from the Fuel Rail Pressure (FRP) sensor that is consistently below the manufacturer’s specified minimum threshold. The FRP sensor is a […]

What Does Code P0193 Mean? DTC P0193, defined as “Fuel Rail Pressure Sensor Circuit High Input,” indicates that the Engine Control Module (ECM) or Powertrain Control Module (PCM) has detected an abnormally high voltage signal from the Fuel Rail Pressure (FRP) sensor. This sensor, often a three-wire transducer, is critical in both Gasoline Direct Injection […]

What Does Code P0194 Mean? The OBD-II diagnostic trouble code P0194 signifies an intermittent fault within the Fuel Rail Pressure (FRP) Sensor circuit. This code is detected by the Engine Control Module (ECM), often referred to as the Powertrain Control Module (PCM), when it observes inconsistent, erratic, or intermittent signal voltage from the FRP sensor […]