All OBD2 Diagnostic Codes
Browse our complete database of 16000 diagnostic trouble codes.
B1950: Body System Security Malfunction
The B1950 code indicates a malfunction in the vehicle's security system, which can prevent the vehicle from starting or cause other issues.
B1951: Audio System Malfunction
The B1951 code indicates a malfunction in the audio system, which may cause issues with sound quality, volume, or functionality.
B1952: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B1953: Climate Control System Malfunction
The B1953 code indicates a malfunction in the climate control system, which may cause issues with temperature control, air flow, or fan operation.
B1954: Door Locks Actuator Malfunction
The B1954 code indicates a malfunction in the door lock actuator, which may cause the doors to malfunction or not lock/unlock properly.
B1955: Power Window Circuit Malfunction
The B1955 code indicates a problem with the power window circuit, which may cause one or more windows to malfunction or not function at all.
B1956: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B1957: Exterior Lighting Malfunction
This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.
B1958: Immobilizer System Malfunction
The immobilizer system has detected a malfunction, preventing the engine from starting. This code is often caused by a faulty immobilizer sensor, wiring issue, or incorrect key fob battery.
B1959: Audio System Malfunction
This code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B1960: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B1961: Climate Control Temperature Sensor Circuit Malfunction
The B1961 code indicates a malfunction in the temperature sensor circuit of the climate control system, which can cause issues with the air conditioning and heating functions.
B1962: Door Locks Actuator Circuit Malfunction
The B1962 code indicates a malfunction in the door locks actuator circuit, which may cause issues with door locking and unlocking functions.
B1963: Power Window Circuit Malfunction
The B1963 code indicates a problem with the power window circuit, which may cause one or more windows to malfunction or not function at all.
B1964: 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.
B1965: Turn Signal Lamp Malfunction
The B1965 code indicates a malfunction in the turn signal lamp circuit, which can cause the turn signals to malfunction or not function at all.
B1966: 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.
B1967: Audio System Fault
The B1967 code indicates a fault in the audio system, possibly due to a malfunctioning amplifier, speaker, or wiring issue.
B1968: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B1969: Climate Control Temperature Sensor Malfunction
The B1969 code indicates a malfunction in the climate control temperature sensor, which can cause issues with the air conditioning and heating systems.
B1970: Door Locks Actuator Circuit Malfunction
The B1970 code indicates a malfunction in the door locks actuator circuit, which may cause issues with door locking and unlocking functions.
B1971: Power Window Circuit Malfunction
The B1971 code indicates a malfunction in the power window circuit, which can cause windows to malfunction or not function at all.
B1972: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B1973: Body Control Module (BCM) Malfunction - Exterior Lighting
The Body Control Module (BCM) has detected a malfunction in the exterior lighting system, which may cause issues with turn signals, brake lights, or other exterior lights.
B1974: 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.
B1975: Audio System Fault
The B1975 code indicates a fault in the audio system, which may cause issues with sound quality, volume, or functionality.
B1976: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B1977: Climate Control Temperature Sensor Malfunction
The B1977 code indicates a malfunction in the climate control temperature sensor, which regulates the air temperature in the vehicle.
B1978: Door Locks Malfunction
This code indicates a malfunction in the door lock system, which may cause doors to lock or unlock unexpectedly, or fail to lock/unlock at all.
B1979: Power Window Relay Circuit Malfunction
The power window relay circuit has malfunctioned, preventing the windows from functioning properly.
B1980: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B1981: Turn Signal/Hazard Light Malfunction
The B1981 code indicates a problem with the turn signal or hazard light circuit, which can cause the lights to malfunction or not function at all.
B1982: 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.
B1983: Audio System Fault
The B1983 code indicates a fault in the audio system, likely due to a malfunctioning amplifier, speaker, or wiring issue.
B1984: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B1985: Climate Control Temperature Sensor Malfunction
The B1985 code indicates a malfunction in the climate control temperature sensor, which regulates the air temperature in the vehicle.
B1986: Door Locks Actuator Circuit Malfunction
The B1986 code indicates a malfunction in the door locks actuator circuit, which may cause issues with door locking or unlocking.
B1987: Power Window Regulator Malfunction
The power window regulator is malfunctioning, preventing the window from moving up or down properly.
B1988: 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.
B1989: Turn Signal/Hazard Light Malfunction
The B1989 code indicates a problem with the turn signal or hazard light system, which may cause the lights to malfunction or not function at all.
B1990: Body Control Module (BCM) Security System Malfunction
The Body Control Module (BCM) has detected a security system malfunction, which can prevent the vehicle from starting or running.
B1991: Audio System Malfunction
The B1991 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B1992: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B1993: Climate Control Temperature Sensor Malfunction
The B1993 code indicates a malfunction in the climate control temperature sensor, which is responsible for monitoring the temperature of the air entering the vehicle's heating and air conditioning system.
B1994: Door Locks Malfunction
The B1994 code indicates a malfunction in the door lock system, which may cause issues with locking or unlocking doors.
B1995: Power Window Relay Circuit Malfunction
The power window relay circuit has malfunctioned, preventing the windows from functioning properly.
B1996: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B1997: Exterior Lighting Malfunction
This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.
B1998: 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.
B1999: Audio System Malfunction
The B1999 code indicates a malfunction in the audio system, likely due to a faulty amplifier, speaker, or wiring issue.