All OBD2 Diagnostic Codes
Browse our complete database of 16000 diagnostic trouble codes.
P0000: Fuel and Air Metering Malfunction
This code indicates a malfunction in the fuel delivery and air intake system, which can cause poor engine performance, rough idling, and decreased fuel efficiency.
P0001: Fuel Pressure Regulator Circuit Malfunction
The fuel pressure regulator circuit is malfunctioning, causing the engine to run rich or lean, resulting in poor engine performance and decreased fuel efficiency.
P0002: Fuel Pressure Regulator Circuit Malfunction
The fuel pressure regulator circuit is malfunctioning, causing the engine to run rich or lean, resulting in poor engine performance and decreased fuel efficiency.
P0003: Fuel Pressure Regulator Circuit Malfunction
The fuel pressure regulator circuit is malfunctioning, causing the engine to run rich or lean, resulting in poor engine performance and decreased fuel efficiency.
P0004: Fuel Pressure Regulator Circuit Malfunction
The fuel pressure regulator circuit is malfunctioning, causing the fuel pressure to be outside the normal operating range.
P0005: Fuel Pressure Regulator Circuit Malfunction
The fuel pressure regulator circuit is malfunctioning, causing the fuel pressure to be outside the normal operating range.
P0006: Fuel Injector Circuit Malfunction
The fuel injector circuit is malfunctioning, which can cause poor engine performance, rough idling, and decreased fuel efficiency.
P0007: Fuel Pressure Regulator Circuit Malfunction
The fuel pressure regulator circuit is malfunctioning, causing the fuel pressure to be outside the normal operating range.
P0008: Fuel System Pressure Too High
The fuel system pressure is too high, which can cause issues with fuel delivery and engine performance.
P0009: Fuel System Pressure Too High
The fuel system pressure is too high, which can cause fuel leaks, poor engine performance, and decreased fuel efficiency.
P0010: Fuel Injector Circuit Malfunction
The engine control module (ECM) has detected a malfunction in the fuel injector circuit, which can cause poor engine performance, rough idling, and decreased fuel efficiency.
P0011: Fuel Injector Circuit Malfunction
The engine control module (ECM) has detected a malfunction in the fuel injector circuit, which can cause poor engine performance, rough idling, and decreased fuel efficiency.
P0012: Fuel Injector Circuit Malfunction
The fuel injector circuit is malfunctioning, which can cause poor engine performance, rough idling, and decreased fuel efficiency.
P0013: Fuel Injector Circuit Low Bank 1
The fuel injector circuit for bank 1 is malfunctioning, causing the engine to run rich or lean.
P0014: Fuel Injector Circuit Low Bank 1
The engine control module (ECM) has detected a low voltage signal from the fuel injector circuit on bank 1, indicating a potential issue with fuel delivery or injector performance.
P0015: Fuel Injector Circuit Low Bank 1
The fuel injector circuit for bank 1 is malfunctioning, causing the engine to run rich or lean.
P0016: Fuel Injector Circuit Low Bank 1
The engine control module (ECM) has detected a low voltage signal from the fuel injector circuit on bank 1, indicating a potential issue with fuel delivery or injector performance.
P0017: Fuel Injector Circuit Low Bank 1
The engine control module (ECM) has detected a low voltage signal from the fuel injector circuit on bank 1, indicating a potential issue with fuel delivery or injector performance.
P0018: Fuel Injector Circuit Low Bank 1
The engine control module (ECM) has detected a low voltage signal from the fuel injector circuit on bank 1, indicating a potential issue with fuel delivery or injector performance.
P0019: Fuel Injector Circuit Low Bank 1
The fuel injector circuit for bank 1 is malfunctioning, causing the engine to run rich or lean.
P0020: Fuel Injector Circuit Malfunction
The fuel injector circuit is malfunctioning, which can cause poor engine performance, rough idling, and decreased fuel efficiency.
P0021: Fuel Injector Circuit Low Bank 1
The engine control module (ECM) has detected a low voltage signal from the fuel injector circuit on bank 1, indicating a potential issue with fuel delivery or injector performance.
P0022: Fuel Injector Circuit Low Bank 1
The fuel injector circuit for bank 1 is malfunctioning, causing the engine to run rich or lean.
P0023: Intake Air Temperature Sensor Circuit High Input
The intake air temperature sensor circuit is reporting a high input voltage, indicating a malfunction in the sensor or wiring.
P0024: Fuel Injector Circuit Malfunction
The fuel injector circuit is malfunctioning, which can cause poor engine performance, rough idling, and decreased fuel efficiency.
P0025: Fuel Injector Circuit Low Bank 1
The fuel injector circuit for bank 1 is malfunctioning, causing the engine to run rich or lean.
P0026: Fuel Injector Circuit Low Voltage (Bank 1)
The fuel injector circuit voltage is too low, which can cause poor engine performance, rough idle, and decreased fuel efficiency.
P0027: Fuel Injector Circuit Low Voltage (Bank 1, Cylinder 2)
The fuel injector circuit for cylinder 2 on bank 1 is experiencing low voltage, which can cause poor engine performance, decreased fuel efficiency, and rough idling.
P0028: Fuel Injector Circuit Low Voltage Bank 1
The fuel injector circuit voltage is low for Bank 1, indicating a problem with the fuel injector or its circuit.
P0029: Fuel Trim Malfunction (Bank 1 Sensor 1)
The fuel trim system has detected a malfunction in the fuel delivery and air intake system, specifically on Bank 1 Sensor 1. This can cause the engine to run rich or lean, leading to decreased performance and potentially causing damage to the engine.
P0030: Fuel Heated Oxygen Sensor (H2S) Heater Circuit Malfunction
The fuel heated oxygen sensor (H2S) heater circuit is malfunctioning, which can cause the engine to run rich or lean, leading to decreased fuel efficiency and potentially causing damage to the catalytic converter.
P0031: Fuel Pressure Regulator Circuit Low Input
The fuel pressure regulator circuit is not receiving the correct input signal, which can cause issues with fuel delivery and engine performance.
P0032: Fuel Pressure Regulator Low Voltage
The fuel pressure regulator is not receiving the correct voltage signal from the powertrain control module, which can cause issues with fuel delivery and engine performance.
P0033: Fuel Pressure Regulator Control Circuit Low Input
The fuel pressure regulator control circuit is malfunctioning, causing the fuel pressure to be lower than expected. This can lead to poor engine performance, rough idling, and decreased fuel efficiency.
P0034: Fuel Pressure Regulator Circuit Low Input
The fuel pressure regulator circuit is receiving a low input signal, which can cause issues with fuel delivery and engine performance.
P0035: Fuel Pressure Regulator Control Circuit Low Input
The fuel pressure regulator control circuit is malfunctioning, causing the fuel pressure to be lower than expected. This can lead to poor engine performance, decreased fuel efficiency, and potentially cause the engine to stall.
P0036: Fuel Pressure Regulator Control Circuit Low Input
The fuel pressure regulator control circuit is malfunctioning, causing the fuel pressure to be too low. This can lead to poor engine performance, decreased fuel efficiency, and potentially cause the engine to stall.
P0037: Fuel Pressure Regulator Control Circuit Low Input
The fuel pressure regulator control circuit is malfunctioning, causing the fuel pressure to be too low. This can lead to poor engine performance, decreased fuel efficiency, and potentially cause the engine to stall.
P0038: Fuel Pressure Regulator Circuit Low Input
The fuel pressure regulator circuit is reporting a low input voltage, indicating a problem with the fuel pressure regulator or its circuit.
P0039: Fuel Pressure Regulator Low Voltage
The fuel pressure regulator is not receiving the correct voltage signal from the powertrain control module, which can cause fuel pressure to be too low.
P0040: Fuel Pressure Regulator Circuit Malfunction
The fuel pressure regulator circuit has malfunctioned, causing the fuel pressure to be outside the normal operating range.
P0041: Fuel Pressure Regulator Circuit Malfunction
The fuel pressure regulator circuit is malfunctioning, causing the fuel pressure to be out of range, which can lead to poor engine performance, rough idling, and decreased fuel efficiency.
P0042: Fuel Pressure Regulator Circuit Low Input
The fuel pressure regulator circuit is receiving a low input signal, which can cause issues with fuel delivery and engine performance.
P0043: Fuel Pressure Regulator Control Circuit Low
The fuel pressure regulator control circuit is malfunctioning, causing the fuel pressure to be too low. This can lead to poor engine performance, decreased fuel efficiency, and potentially cause the engine to stall.
P0044: Fuel Pressure Regulator Circuit Low Input
The fuel pressure regulator circuit is receiving a low input signal, indicating a problem with the fuel pressure regulator or its associated components.
P0045: Fuel Pressure Regulator Control Circuit Low Input
The fuel pressure regulator control circuit is malfunctioning, causing the fuel pressure to be lower than expected. This can lead to poor engine performance, decreased fuel efficiency, and potentially cause the engine to stall.
P0046: Fuel Pressure Regulator Control Circuit Low Input
The fuel pressure regulator control circuit is malfunctioning, causing the fuel pressure to be too low. This can lead to poor engine performance, decreased fuel efficiency, and potentially cause the engine to stall.
P0047: Fuel Pressure Regulator Control Circuit Low Input
The fuel pressure regulator control circuit is malfunctioning, causing the fuel pressure to be too low. This can cause poor engine performance, rough idling, and decreased fuel efficiency.
P0048: Fuel Pressure Regulator Circuit Low Input
The fuel pressure regulator circuit is receiving a low input signal, which can cause issues with fuel delivery and engine performance.
P0049: Fuel Pressure Regulator Control Circuit Low
The fuel pressure regulator control circuit is malfunctioning, causing the fuel pressure to be lower than expected. This can lead to poor engine performance, decreased fuel efficiency, and potentially cause the engine to stall.