Archives: DTC Codes

What Does Code P0235 Mean? DTC P0235 indicates a detected electrical anomaly within the circuit of the Turbocharger/Supercharger Boost Sensor “A”. The Engine Control Module (ECM) or Powertrain Control Module (PCM) monitors the voltage signal from this sensor to determine the absolute boost pressure within the intake manifold relative to atmospheric pressure. The “A” designation […]

What Does Code P0236 Mean? DTC P0236 indicates a Turbocharger/Supercharger Boost Sensor “A” Circuit Range/Performance malfunction. The Engine Control Module (ECM) or Powertrain Control Module (PCM) monitors the voltage or frequency signal from the Boost Pressure Sensor (BPS) to determine the amount of boost pressure generated by the forced induction system. This code is triggered […]

What Does Code P0237 Mean? DTC P0237 signifies that the Engine Control Module (ECM), often referred to as the Powertrain Control Module (PCM), has detected a voltage signal from the Turbocharger/Supercharger Boost Sensor “A” circuit that is below its calibrated operational threshold. This typically means the signal voltage is consistently too low, indicating an open […]

What Does Code P0238 Mean? DTC P0238 signifies that the Engine Control Module (ECM) or Powertrain Control Module (PCM) has detected a voltage reading from the Turbocharger/Supercharger Boost Sensor “A” circuit that is consistently higher than the expected normal operating range. This sensor, often referred to as the Boost Pressure Sensor (BPS) or a dedicated […]

What Does Code P0239 Mean? DTC P0239 indicates a malfunction within the circuit of the Turbocharger/Supercharger Boost Sensor “B”. The Engine Control Module (ECM), or Powertrain Control Module (PCM), monitors the electrical signal output from this sensor to determine the actual boost pressure being generated by the forced induction system. “Sensor B” typically refers to […]

What Does Code P0240 Mean? The diagnostic trouble code P0240 indicates “Turbocharger Boost Sensor B Circuit Range/Performance.” This code signifies that the Engine Control Module (ECM), also known as the Powertrain Control Module (PCM), has detected an inconsistency or implausible signal from the turbocharger boost pressure sensor designated as “B.” The “B” typically refers to […]

What Does Code P0241 Mean? DTC P0241 indicates that the Engine Control Module (ECM) or Powertrain Control Module (PCM) has detected an abnormally low voltage signal from the Turbocharger/Supercharger Boost Sensor “B” circuit. In modern forced-induction systems, multiple pressure sensors are employed to accurately monitor charge air pressure at various points within the intake tract. […]

What Does Code P0242 Mean? The diagnostic trouble code P0242 indicates a condition where the Engine Control Module (ECM) or Powertrain Control Module (PCM) has detected an excessively high voltage signal from the Turbocharger/Supercharger Boost Sensor “B” circuit. In modern forced-induction systems, the boost pressure sensor (often a Manifold Absolute Pressure, or MAP sensor, configured […]

What Does Code P0243 Mean? The OBD-II diagnostic trouble code P0243 signifies a “Turbocharger/Supercharger Wastegate Solenoid ‘A’ Malfunction.” This code is set when the Engine Control Module (ECM), also known as the Powertrain Control Module (PCM), detects an electrical circuit fault within the wastegate solenoid ‘A’ control circuit. The wastegate solenoid is a critical component […]

What Does Code P0244 Mean? DTC P0244 indicates a performance or range issue within the turbocharger/supercharger wastegate control system, specifically referencing solenoid “A”. The Engine Control Module (ECM), or Powertrain Control Module (PCM), monitors the actual boost pressure developed by the turbocharger via the Manifold Absolute Pressure (MAP) sensor. It then compares this value to […]