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The P20BD diagnostic trouble code (DTC) is a generic powertrain code that signifies an issue with the “Reductant Heater ‘B’ Control Circuit/Open.” This code is primarily associated with diesel engines that utilize Selective Catalytic Reduction (SCR) systems to reduce nitrogen oxide (NOx) emissions. The SCR system injects Diesel Exhaust Fluid (DEF) into the exhaust stream, …
The P0019 trouble code is a diagnostic trouble code (DTC) that indicates a correlation issue between the crankshaft position and the camshaft position on bank 2 of an engine. This code is set when the Engine Control Module (ECM) detects that the timing of these two components is out of sync, which can lead to …
The P1136 trouble code is a diagnostic trouble code (DTC) that indicates an issue with the fuel trim system, specifically that the engine is running too lean on bank 1. This condition typically arises when the engine control module (ECM) detects that the air-fuel mixture is not optimal, which can lead to poor engine performance, …
The P0590 trouble code is a diagnostic trouble code (DTC) that indicates a problem with the cruise control system, specifically relating to the “Multi-Function Input ‘B’” circuit. This code is typically triggered when the Powertrain Control Module (PCM) detects that the cruise control multi-function input circuit is either stuck or not functioning correctly. The cruise …
The P1B00 diagnostic trouble code (DTC) is a manufacturer-specific code that indicates a fault within the vehicle’s powertrain, particularly related to the battery or charging system in electric and hybrid vehicles. This code can manifest due to various issues, including wiring problems, faulty components, or incorrect configurations. Understanding the implications of this code is crucial …
The P0057 trouble code is a diagnostic trouble code (DTC) that indicates a problem with the heated oxygen sensor (HO2S) heater control circuit, specifically for Bank 2, Sensor 2. This code is triggered when the powertrain control module (PCM) detects that the voltage from the heater circuit of the downstream oxygen sensor is lower than …
The P0174 trouble code indicates a “System Too Lean (Bank 2)” condition in your vehicle’s engine. This means that the engine control module (ECM) has detected an imbalance in the air-fuel mixture on bank 2 of the engine, which is typically the side that does not contain cylinder 1. A lean condition occurs when there …
The P2413 trouble code is a diagnostic trouble code (DTC) that indicates a malfunction in the exhaust gas recirculation (EGR) system performance. This code is triggered when the powertrain control module (PCM) detects that the EGR system is not functioning as expected. The EGR system plays a crucial role in reducing nitrogen oxide (NOx) emissions …
The P2237 trouble code is a diagnostic trouble code (DTC) that indicates an issue with the oxygen sensor’s positive current control circuit, specifically for Bank 1, Sensor 1. This code is triggered when the Powertrain Control Module (PCM) detects an open circuit or a problem in the heater control circuit of the oxygen sensor. Oxygen …
The P0449 code is a diagnostic trouble code (DTC) related to the evaporative emission control (EVAP) system in vehicles. Specifically, it indicates a malfunction in the vent valve or solenoid circuit of the EVAP system. This code is crucial for maintaining proper emissions control and fuel system operation. P0449 Code Meaning P0449 Code Common Causes …
