Archives: DTC Codes

What Does Code P0740 Mean? The diagnostic trouble code P0740 signifies a detected malfunction within the Torque Converter Clutch (TCC) circuit. This code is set by the Powertrain Control Module (PCM), or in some architectures, the Transmission Control Module (TCM), when it identifies an electrical or performance anomaly in the circuit responsible for controlling the […]

What Does Code P0741 Mean? DTC P0741 signifies a detected malfunction within the Torque Converter Clutch (TCC) circuit, specifically indicating “Performance or Stuck Off.” The Engine Control Module (ECM) or Powertrain Control Module (PCM), which typically integrates Transmission Control Module (TCM) functionality, commands the TCC to engage under specific driving conditions, primarily at cruising speeds, […]

What Does Code P0742 Mean? The diagnostic trouble code P0742 signifies a condition where the Powertrain Control Module (PCM) or Engine Control Module (ECM) detects that the Torque Converter Clutch (TCC) circuit is “stuck on.” This implies that the TCC remains engaged or locked when it should be disengaged, particularly at low vehicle speeds or […]

What Does Code P0743 Mean? DTC P0743 signifies that the Powertrain Control Module (PCM) or Engine Control Module (ECM) has detected an electrical fault within the control circuit for the Torque Converter Clutch (TCC) solenoid. This is an electrical circuit malfunction, not necessarily a mechanical failure of the torque converter itself. The TCC solenoid is […]

What Does Code P0744 Mean? The OBD-II diagnostic trouble code P0744 signifies an intermittent electrical or hydraulic fault within the Torque Converter Clutch (TCC) circuit. The Engine Control Module (ECM), often referred to as the Powertrain Control Module (PCM), continuously monitors the operational status and slip rate of the TCC. The TCC is designed to […]

What Does Code P0745 Mean? DTC P0745 signifies an electrical malfunction within the circuit of the Pressure Control Solenoid “A” (PCS A) in an automatic transmission. This code indicates that the Powertrain Control Module (PCM) or Transmission Control Module (TCM) has detected an abnormality in the electrical signal or resistance of the designated solenoid circuit. […]

What Does Code P0746 Mean? DTC P0746 indicates a detected performance issue or a “Stuck Off” condition for the Pressure Control Solenoid “A” circuit within the automatic transmission. This diagnostic trouble code is set by the Transmission Control Module (TCM), which is often integrated into the Powertrain Control Module (PCM/ECM). The TCM’s primary function regarding […]

What Does Code P0747 Mean? The OBD-II diagnostic trouble code P0747 indicates “Pressure Control Solenoid ‘A’ Stuck On”. This code signifies that the Powertrain Control Module (PCM), or Engine Control Module (ECM), has detected a malfunction within the automatic transmission’s hydraulic control system, specifically related to the Line Pressure Control Solenoid ‘A’ (often referred to […]

What Does Code P0748 Mean? DTC P0748 indicates an electrical fault within the circuit of the Transmission Pressure Control Solenoid (PCS), often referred to as Solenoid “A” in generic contexts. The Engine Control Module (ECM) or Powertrain Control Module (PCM), which typically integrates the Transmission Control Module (TCM) functions, monitors the electrical characteristics of the […]

What Does Code P0749 Mean? DTC P0749 signifies an detected intermittent electrical or mechanical malfunction within the circuit or operation of the Pressure Control Solenoid (PCS) of an automatic transmission. The Powertrain Control Module (PCM) or Transmission Control Module (TCM) continuously monitors the hydraulic pressure within the transmission system, regulating it via one or more […]