Archives: DTC Codes

What Does Code P0070 Mean? DTC P0070 signifies a general malfunction within the Ambient Air Temperature (AAT) Sensor Circuit. The Engine Control Module (ECM), also known as the Powertrain Control Module (PCM), monitors the AAT sensor as a critical input for various systems. The AAT sensor is typically a Negative Temperature Coefficient (NTC) thermistor, meaning […]

What Does Code P0071 Mean? The diagnostic trouble code P0071 indicates an “Ambient Air Temperature Sensor Range/Performance” issue. This signifies that the Powertrain Control Module (PCM), often referred to as the Engine Control Module (ECM), has detected a rationality fault with the signal from the Ambient Air Temperature (AAT) sensor. The AAT sensor is typically […]

What Does Code P0072 Mean? DTC P0072 indicates a low voltage condition detected by the Engine Control Module (ECM) or Powertrain Control Module (PCM) within the circuit of Ambient Air Temperature (AAT) Sensor “C”. The AAT sensor is a thermistor-type sensor, meaning its electrical resistance changes inversely with temperature (Negative Temperature Coefficient – NTC). It […]

What Does Code P0073 Mean? DTC P0073 signifies a detected malfunction within the Ambient Air Temperature (AAT) sensor circuit, specifically indicating a “circuit high” condition. The AAT sensor is a thermistor, a temperature-sensitive resistor, which provides the Engine Control Module (ECM) or Powertrain Control Module (PCM) with data regarding the external air temperature. The ECM/PCM […]

What Does Code P0074 Mean? DTC P0074 signifies an intermittent fault within the Ambient Air Temperature (AAT) Sensor Circuit. The Powertrain Control Module (PCM), often referred to as the Engine Control Module (ECM) on some platforms, utilizes the AAT sensor to monitor the temperature of the air outside the vehicle. This data is crucial for […]

What Does Code P0075 Mean? DTC P0075 signifies a detected electrical circuit malfunction within the Intake Valve Control Solenoid circuit for Bank 1. Bank 1 refers to the engine cylinder bank that contains cylinder number one. This solenoid is a critical component of the engine’s Variable Valve Timing (VVT) or Variable Valve Lift (VVL) system, […]

What Does Code P0076 Mean? DTC P0076 signifies an detected electrical circuit malfunction within the intake valve control solenoid circuit for Bank 1, specifically indicating a “low” condition. This code points to an issue with the Variable Valve Timing (VVT) or Variable Valve Lift (VVL) system, a crucial component for optimizing engine performance and emissions […]

What Does Code P0077 Mean? The diagnostic trouble code P0077 indicates that the Powertrain Control Module (PCM), often referred to as the Engine Control Module (ECM), has detected an electrical fault within the control circuit of the Intake Valve Control Solenoid for Bank 1. Specifically, “Circuit High” signifies that the voltage reading within this dedicated […]

What Does Code P0078 Mean? DTC P0078 signifies a detected electrical circuit malfunction within the exhaust valve control solenoid for Bank 1 of the engine. The Engine Control Module (ECM), also commonly referred to as the Powertrain Control Module (PCM), continuously monitors the electrical characteristics of the Variable Valve Timing (VVT) or Variable Valve Lift […]

What Does Code P0079 Mean? DTC P0079 signifies “Exhaust Valve Control Solenoid Circuit Low (Bank 1)”. This code is set by the Engine Control Module (ECM), often referred to as the Powertrain Control Module (PCM), when it detects a voltage condition in the electrical circuit of the exhaust camshaft position actuator/control solenoid on Bank 1 […]