All OBD2 Diagnostic Codes
Browse our complete database of 16000 diagnostic trouble codes.
B1900: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B1901: Body System Code - Lighting Malfunction
The B1901 code indicates a malfunction in the vehicle's lighting system, such as a faulty headlight, taillight, or brake light.
B1902: Immobilizer System Malfunction
The immobilizer system has detected a malfunction, preventing the engine from starting. This code is typically set when the immobilizer system is not functioning correctly, preventing the vehicle from starting.
B1903: Audio System Malfunction
The B1903 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B1904: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B1905: Climate Control Fan Motor Malfunction
The B1905 code indicates a malfunction in the climate control fan motor, which may cause the fan to stop working or operate erratically.
B1906: Door Locks Actuator Malfunction
The B1906 code indicates a malfunction in the door lock actuator, which may cause the door locks to malfunction or not function at all.
B1907: Power Window Regulator Circuit Malfunction
The power window regulator circuit has malfunctioned, preventing the window from moving properly.
B1908: Seat Position Sensor Malfunction
The seat position sensor has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position, which can cause issues with seat adjustments and potentially affect airbag deployment.
B1909: Exterior Lighting Malfunction
The B1909 code indicates a malfunction in the exterior lighting system, such as the headlights, taillights, or turn signals.
B1910: Immobilizer System Malfunction
The immobilizer system has detected a malfunction, preventing the engine from starting. This code is typically set when the immobilizer system is not functioning correctly, preventing the engine from starting.
B1911: Audio System Malfunction
The B1911 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B1912: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B1913: Climate Control Fan Motor Malfunction
The B1913 code indicates a malfunction in the climate control fan motor, which may cause the fan to stop working or operate intermittently.
B1914: Door Locks Actuator Malfunction
The B1914 code indicates a malfunction in the door lock actuator, which prevents the door locks from functioning properly.
B1915: Power Window Relay Circuit Malfunction
The power window relay circuit has malfunctioned, preventing the windows from functioning properly. This code is typically set when the window switch is pressed but the window does not move.
B1916: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B1917: Body System Code - Malfunctioning Headlight or Taillight
This code indicates a problem with the headlight or taillight circuit, such as a faulty bulb, wiring issue, or faulty headlight or taillight module.
B1918: Immobilizer System Malfunction
The immobilizer system has detected a malfunction, preventing the vehicle from starting. This code is typically set when the immobilizer system is not functioning correctly, preventing the vehicle from starting.
B1919: Audio System Malfunction
The B1919 code indicates a malfunction in the audio system, which may cause issues with sound quality, volume, or functionality.
B1920: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B1921: Climate Control Fan Motor Malfunction
The B1921 code indicates a malfunction in the climate control fan motor, which may cause the fan to malfunction or not turn on.
B1922: Door Locks Actuator Circuit Malfunction
The B1922 code indicates a malfunction in the door locks actuator circuit, which may cause issues with door locking or unlocking.
B1923: Power Window Regulator Malfunction
The power window regulator is malfunctioning, preventing the window from moving up or down properly.
B1924: Seat Switch Circuit Malfunction
The seat switch circuit has malfunctioned, preventing the seat from functioning properly. This code is typically set when the seat switch circuit is open or shorted.
B1925: Exterior Lighting Malfunction
This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.
B1926: Immobilizer System Malfunction
The immobilizer system has detected a malfunction, preventing the engine from starting. This code is usually caused by a faulty immobilizer module, key fob, or wiring issue.
B1927: Audio System Malfunction
The B1927 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B1928: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B1929: Climate Control Actuator Malfunction
The climate control system has detected a malfunction in the actuator, which controls the temperature and airflow in the vehicle.
B1930: Door Locks Malfunction
The B1930 code indicates a malfunction in the door lock system, which can cause issues with locking and unlocking the doors.
B1931: Power Window Circuit Malfunction
The B1931 code indicates a problem with the power window circuit, which can cause windows to malfunction or not function at all.
B1932: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B1933: Exterior Lighting Malfunction
This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.
B1934: Immobilizer System Malfunction
The immobilizer system has detected a malfunction, preventing the engine from starting. This code is usually caused by a faulty immobilizer module, key fob, or wiring issue.
B1935: Audio System Fault
The B1935 code indicates a fault in the audio system, likely due to a malfunctioning amplifier, speaker, or wiring issue.
B1936: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B1937: Climate Control System Malfunction
The B1937 code indicates a malfunction in the climate control system, which may cause issues with temperature control, air flow, or fan operation.
B1938: Door Locks Malfunction
The B1938 code indicates a malfunction in the door lock system, which can cause issues with locking and unlocking doors.
B1939: Power Window Circuit Malfunction
The B1939 code indicates a problem with the power window circuit, which may cause windows to malfunction or not function at all.
B1940: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately monitoring the seat's position and movement.
B1941: Turn Signal/Hazard Lamp Malfunction
The B1941 code indicates a malfunction in the turn signal or hazard lamp circuit, which can cause the lights to malfunction or not function at all.
B1942: Immobilizer System Malfunction
The immobilizer system has detected a malfunction, preventing the engine from starting. This code is typically set when the immobilizer system is not functioning correctly.
B1943: Audio System Malfunction
The B1943 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B1944: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B1945: Climate Control Fan Motor Malfunction
The B1945 code indicates a malfunction in the climate control fan motor, which may cause the fan to stop working or operate intermittently.
B1946: Door Locks Actuator Circuit Malfunction
The B1946 code indicates a malfunction in the door locks actuator circuit, which may cause the door locks to malfunction or not function at all.
B1947: Power Window Circuit Malfunction
The B1947 code indicates a malfunction in the power window circuit, which can cause windows to malfunction or not function at all.
B1948: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately monitoring the seat's position and movement.
B1949: Turn Signal Lamp Malfunction
The B1949 code indicates a malfunction in the turn signal lamp circuit, which can cause the turn signals to malfunction or not function at all.