Archives: DTC Codes

What Does Code P1482 Mean? Diagnostic Trouble Code (DTC) P1482 signifies a detected malfunction in the Electric Cooling Fan Control Circuit, specifically indicating a condition where the circuit is experiencing a Short to Power (SCP). This is a manufacturer-specific code (P1xxx series) often associated with Ford, Toyota, and Subaru vehicles, among others, and typically points […]

What Does Code P1483 Mean? DTC P1483 signifies an “Overcurrent Condition in the Cooling Fan Power Circuit.” This code indicates that the Engine Control Module (ECM), also commonly referred to as the Powertrain Control Module (PCM), has detected an electrical current draw by the engine cooling fan circuit that exceeds its predefined maximum operational threshold. […]

What Does Code P1484 Mean? DTC P1484 indicates an “Open Power To Ground VCRM” condition, signifying a detected fault within the Variable Cooling Fan Control Module (VCRM) power or ground circuit. The Engine Control Module (ECM), also commonly referred to as the Powertrain Control Module (PCM), monitors the operational integrity of the VCRM, which is […]

What Does Code P1485 Mean? DTC P1485 indicates an electrical circuit malfunction within the Exhaust Gas Recirculation (EGR) system, specifically referencing the EGR Valve (EGRV) circuit. This code is triggered when the Engine Control Module (ECM) or Powertrain Control Module (PCM) detects an electrical anomaly within the control circuit that operates the EGR valve. The […]

What Does Code P1486 Mean? DTC P1486 signifies an “Exhaust Gas Recirculation A Circuit Malfunction.” This code is set by the Engine Control Module (ECM) or Powertrain Control Module (PCM) when it detects an electrical fault within the control circuit for the EGR system. The EGR system is critical for reducing nitrogen oxide (NOx) emissions […]

What Does Code P1487 Mean? The OBD-II diagnostic trouble code P1487 signifies an detected electrical malfunction within the circuit of the EGRCHK Solenoid. The term “EGRCHK” refers to a component, typically a solenoid-operated valve, that the Engine Control Module (ECM) or Powertrain Control Module (PCM) utilizes to control the flow of exhaust gases into the […]

What Does Code P1490 Mean? The diagnostic trouble code P1490 signifies a “Secondary Air Relief Solenoid Circuit Malfunction”. This code indicates that the Engine Control Module (ECM), also known as the Powertrain Control Module (PCM), has detected an electrical fault within the circuit controlling the secondary air injection (SAI) relief solenoid. The Secondary Air Injection […]

What Does Code P1491 Mean? DTC P1491 signifies a malfunction within the electrical circuit of the Secondary Switch Solenoid. This code is typically associated with the Secondary Air Injection (AIR) system, which is a critical component of the vehicle’s emission control system, particularly during cold start operation. The AIR system is designed to pump fresh […]

What Does Code P1492 Mean? The P1492 diagnostic trouble code (DTC) indicates that the Engine Control Module (ECM), also known as the Powertrain Control Module (PCM), has detected an electrical malfunction within the circuit of the Automatic Pressure Limiting Solenoid (APLSOL). In many vehicle applications, particularly certain Chrysler, Dodge, and Jeep models, this solenoid is […]

What Does Code P1493 Mean? DTC P1493, often designated as “Recirculation Control Solenoid Circuit Malfunction,” is a manufacturer-specific code predominantly found in Honda and Acura vehicles. In this context, “RCNT” most commonly refers to the EVAP (Evaporative Emission Control System) Bypass Solenoid Valve. This solenoid is an integral component of the EVAP system’s leak detection […]