Archives: DTC Codes

What Does Code P1406 Mean? The OBD-II diagnostic trouble code P1406 indicates an issue with the Exhaust Gas Recirculation (EGR) Position Sensor Performance. This code is specifically set when the Engine Control Module (ECM) or Powertrain Control Module (PCM) detects that the actual position of the EGR valve, as reported by its integrated position sensor, […]

What Does Code P1407 Mean? DTC P1407 signifies “EGR No Flow Detected,” indicating that the Engine Control Module (ECM) or Powertrain Control Module (PCM) has determined that the Exhaust Gas Recirculation (EGR) system is not flowing exhaust gases into the intake manifold when commanded to do so. The ECM typically monitors EGR flow by evaluating […]

What Does Code P1408 Mean? The diagnostic trouble code (DTC) P1408 signifies “EGR Flow Out Of Self Test Range.” This indicates that the Engine Control Module (ECM), also commonly referred to as the Powertrain Control Module (PCM), has detected an anomaly in the exhaust gas recirculation (EGR) system’s flow rate during a specific diagnostic monitor […]

What Does Code P1409 Mean? DTC P1409 indicates an electrical malfunction within the control circuit of the Exhaust Gas Recirculation (EGR) Vacuum Regulator (EVR) solenoid valve. The Engine Control Module (ECM), also commonly referred to as the Powertrain Control Module (PCM), is responsible for monitoring the electrical integrity of various engine control circuits. In the […]

What Does Code P1411 Mean? DTC P1411, “Secondary Air Injection (SAI) System Incorrect Downstream Flow Detected,” indicates that the Engine Control Module (ECM) or Powertrain Control Module (PCM) has detected an issue with the operation of the SAI system, specifically concerning its ability to deliver the expected amount of fresh air into the exhaust stream […]

What Does Code P1413 Mean? DTC P1413 signifies a detected malfunction within the Secondary Air Injection (SAI) system’s monitoring circuit, specifically indicating a “Low Input.” The Secondary Air Injection system is an emission control system designed to inject fresh air into the exhaust stream during cold engine starts. This additional oxygen helps to rapidly warm […]

What Does Code P1414 Mean? DTC P1414 signifies a detected fault within the Secondary Air Injection (SAI) system’s monitoring circuit, specifically indicating a “High Input” condition. The Secondary Air Injection system is an emissions control component designed to reduce exhaust emissions, particularly during cold engine starts. Its primary function is to inject fresh, oxygen-rich air […]

What Does Code P1415 Mean? The diagnostic trouble code P1415 indicates an electrical malfunction within the secondary air injection (AIR) system circuit specifically for Bank 1. The AIR system is a crucial component of the vehicle’s emission control strategy, primarily active during cold engine starts. Its function is to inject fresh, ambient air into the […]

What Does Code P1416 Mean? The P1416 diagnostic trouble code signifies that the Engine Control Module (ECM), often referred to as the Powertrain Control Module (PCM), has detected a malfunction within the Secondary Air Injection (AIR) system’s circuit specifically designated for Bank 2. This code indicates that the PCM has identified an issue preventing the […]

What Does Code P1417 Mean? DTC P1417 signifies a detected malfunction within the Secondary Air Injection (SAI) system’s Port Air Relief Circuit. This circuit typically refers to the mechanism responsible for controlling the flow of fresh air from the SAI pump into the exhaust stream, or diverting it away when not needed, often to prevent […]