Archives: DTC Codes

What Does Code P1472 Mean? DTC P1472 signifies an “Electrodrive Fan 2 Operational Failure,” commonly referring to a malfunction within the secondary electric cooling fan circuit, often located on the passenger side of the engine compartment. The Engine Control Module (ECM) or Powertrain Control Module (PCM) is designed to monitor the operational status and electrical […]

What Does Code P1473 Mean? DTC P1473 signifies “Fan Secondary High With Fan(s) Off.” This powertrain diagnostic trouble code is set by the Engine Control Module (ECM), also known as the Powertrain Control Module (PCM), when it detects an anomalous condition within the electric cooling fan circuit. Specifically, the ECM monitors the voltage or current […]

What Does Code P1474 Mean? The diagnostic trouble code P1474 signifies an electrical malfunction within the primary control circuit responsible for activating the engine cooling fan at its low-speed setting. The Engine Control Module (ECM), also known as the Powertrain Control Module (PCM), continuously monitors the electrical integrity and operational status of critical engine cooling […]

What Does Code P1475 Mean? DTC P1475 indicates a detected malfunction within the low-speed cooling fan relay control circuit. The Engine Control Module (ECM), or Powertrain Control Module (PCM), monitors the electrical characteristics of the circuit that activates the engine’s primary cooling fan at its lower speed setting. When the ECM commands the low-speed fan […]

What Does Code P1476 Mean? DTC P1476 indicates an electrical circuit malfunction within the high-speed control circuit for the engine cooling fan relay. The Engine Control Module (ECM), also known as the Powertrain Control Module (PCM), is designed to actively monitor the electrical integrity and operational status of critical components, including the engine cooling fan […]

What Does Code P1477 Mean? DTC P1477 signifies a malfunction within the control circuit of the secondary or additional cooling fan relay. This code is typically manufacturer-specific, but generally indicates that the Engine Control Module (ECM) or Powertrain Control Module (PCM) has detected an unexpected electrical state in the circuit responsible for activating the cooling […]

What Does Code P1478 Mean? DTC P1478 signifies a Cooling Fan Driver Fault. This code is specifically set by the Engine Control Module (ECM) or Powertrain Control Module (PCM) when it detects an electrical anomaly within the control circuit responsible for activating the electric cooling fan(s). The ECM/PCM utilizes a dedicated driver circuit, often involving […]

What Does Code P1479 Mean? DTC P1479 indicates a detected malfunction within the High Fan Control Primary Circuit. The Engine Control Module (ECM), also known as the Powertrain Control Module (PCM), is responsible for monitoring the electrical integrity and operational status of the engine cooling fan system. Specifically, P1479 points to an issue with the […]

What Does Code P1480 Mean? The diagnostic trouble code P1480, “Fan Secondary Low with Low Fan On,” indicates a specific malfunction detected by the Engine Control Module (ECM) or Powertrain Control Module (PCM) within the vehicle’s engine cooling fan system. This code is triggered when the ECM commands the secondary cooling fan to operate at […]

What Does Code P1481 Mean? DTC P1481, which translates to “Fan Secondary Low With High Fan On,” indicates a specific malfunction within the engine’s cooling fan control circuit. The Powertrain Control Module (PCM) or Engine Control Module (ECM) monitors the operational status of the cooling fan system. In response to elevated engine temperatures, air conditioning […]