All OBD2 Diagnostic Codes
Browse our complete database of 16000 diagnostic trouble codes.
B0250: Door Locks Malfunction
The B0250 code indicates a malfunction in the door lock system, which can cause issues with locking and unlocking the doors.
B0251: 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.
B0252: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately tracking the seat's position, which can cause issues with seat adjustments and potentially affect airbag deployment.
B0253: Low Beam Headlight Relay Circuit Malfunction
The B0253 code indicates a problem with the low beam headlight relay circuit, which is responsible for switching between low and high beam headlights. This code is typically set when the vehicle's computer detects an issue with the relay circuit, such as a faulty relay or wiring problem.
B0254: Immobilizer System Malfunction
The immobilizer system has malfunctioned, preventing the vehicle from starting or running. This code is typically set when the immobilizer system detects a problem with the key fob, ignition switch, or other related components.
B0255: Audio System Malfunction
The B0255 code indicates a malfunction in the audio system, which can cause issues with sound quality, volume control, or speaker functionality.
B0256: Airbag System Faulty Deployment Sensor
The airbag system has detected a faulty deployment sensor, which may prevent the airbag from deploying properly in the event of a crash.
B0257: Climate Control Fan Motor Malfunction
The B0257 code indicates a malfunction in the climate control fan motor, which may cause the fan to stop working or operate intermittently.
B0258: Door Lock Actuator Circuit Malfunction
The B0258 code indicates a malfunction in the door lock actuator circuit, which controls the locking and unlocking of the doors. This can cause issues with door locking and unlocking, and may also trigger the airbag warning light.
B0259: Power Window Regulator Circuit Malfunction
The power window regulator circuit is malfunctioning, preventing the window from moving properly. This code is typically set when the window is stuck or not moving correctly.
B0260: Seat Height Sensor Circuit Malfunction
The seat height sensor circuit has malfunctioned, preventing the seat from adjusting properly. This code is typically set when the seat height sensor circuit is open or shorted.
B0261: Body Control Module (BCM) Fault - Turn Signal Light Circuit
The Body Control Module (BCM) has detected an issue with the turn signal light circuit, which may be causing the turn signals to malfunction or not function at all.
B0262: Immobilizer System Malfunction
The immobilizer system has failed to communicate with the engine control module, preventing the vehicle from starting. This code is usually set when the immobilizer key is not recognized or the system is malfunctioning.
B0263: Audio System Fault
The B0263 code indicates a fault in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B0264: Airbag System Fault
The airbag system has detected a fault, which may prevent the airbags from deploying in the event of a crash. This code is usually related to a faulty airbag sensor or wiring issue.
B0265: Climate Control System Malfunction
This code indicates a malfunction in the climate control system, which may cause issues with temperature control, air flow, or fan operation.
B0266: Door Locks Actuator Circuit Malfunction
The B0266 code indicates a malfunction in the door locks actuator circuit, which can cause issues with door locking and unlocking functions.
B0267: Power Window Circuit Malfunction
The B0267 code indicates a problem with the power window circuit, preventing the windows from functioning properly.
B0268: Seat Switch Circuit Malfunction
The B0268 code indicates a problem with the seat switch circuit, which controls the position and function of the vehicle's seats.
B0269: Headlight High Beam Relay Malfunction
The B0269 code indicates a malfunction in the headlight high beam relay, which controls the high beam headlights. This can cause the high beams to malfunction or not function at all.
B0270: Body Control Module (BCM) Security Malfunction
The Body Control Module (BCM) has detected a security malfunction, which may be caused by a faulty BCM, a malfunctioning sensor, or a wiring issue.
B0271: Audio System Fault
The B0271 code indicates a fault in the audio system's amplifier or speaker circuit. This can cause issues with sound quality, volume, or complete loss of audio functionality.
B0272: Airbag System Malfunction
The airbag system has detected a malfunction, which may be caused by a faulty sensor, wiring issue, or software problem.
B0273: Climate Control System Malfunction
This code indicates a malfunction in the climate control system, which may cause issues with temperature regulation, air flow, or fan operation.
B0274: Door Locks Actuator Circuit Malfunction
The B0274 code indicates a malfunction in the door lock actuator circuit, which prevents the door locks from functioning properly.
B0275: Window Regulator Motor Circuit Malfunction
This code indicates a problem with the window regulator motor circuit, which controls the movement of the window up and down.
B0276: 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.
B0277: Headlamp Low Beam Out of Adjustment
The headlamp low beam is out of adjustment, which can cause reduced visibility and affect the vehicle's safety.
B0278: Immobilizer System Malfunction
The immobilizer system has detected a malfunction, preventing the vehicle from starting or running. This code is typically set when the immobilizer system is not functioning correctly, preventing the vehicle from starting.
B0279: Audio System Malfunction
The B0279 code indicates a malfunction in the audio system, typically caused by a faulty amplifier, speaker, or wiring issue.
B0280: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B0281: Climate Control System Malfunction
The B0281 code indicates a malfunction in the climate control system, which may cause issues with air temperature, air flow, or fan operation.
B0282: Door Locks Actuator Malfunction
The body control module has detected a malfunction in the door lock actuator circuit, preventing proper door lock operation.
B0283: Power Window Circuit Malfunction
This code indicates a problem with the power window circuit, which can cause windows to malfunction or not function at all.
B0284: Seat Adjuster System Fault
This code indicates a fault in the seat adjuster system, which may cause issues with seat movement, position, or locking.
B0285: Turn Signal Lamp Malfunction
The B0285 code indicates a malfunction in the turn signal lamp circuit, which can cause the turn signal lights to malfunction or not function at all.
B0286: Immobilizer System Malfunction
The immobilizer system has malfunctioned, preventing the engine from starting. This code is usually caused by a faulty immobilizer module, key fob, or battery.
B0287: Audio System Fault
This code indicates a malfunction in the audio system, such as a faulty amplifier, speaker, or wiring issue.
B0288: Airbag System Malfunction
The airbag system has detected an internal malfunction, preventing it from functioning properly.
B0289: Climate Control Blower Motor Resistor Fault
The climate control system has detected a fault with the blower motor resistor, which regulates the speed of the blower motor.
B0290: Door Locks Malfunction
The Body Control Module (BCM) has detected a malfunction in the door lock system, preventing the doors from locking or unlocking properly.
B0291: Power Window Circuit Malfunction
The B0291 code indicates a problem with the power window circuit, which can cause windows to malfunction or fail to operate properly.
B0292: Seat Position Sensor Circuit Malfunction
This code indicates a problem with the seat position sensor circuit, which monitors the position and movement of the vehicle's seats. The sensor sends signals to the vehicle's computer, which uses this information to adjust various systems, such as the seatbelt warning system and the airbag deployment system.
B0293: Body Control Module (BCM) Lighting Circuit Malfunction
The Body Control Module (BCM) has detected a malfunction in the lighting circuit, which may cause issues with the vehicle's exterior lights, such as the headlights, taillights, or turn signals.
B0294: Immobilizer System Malfunction
The immobilizer system has malfunctioned, preventing the engine from starting. This code is usually triggered by a faulty immobilizer sensor, a problem with the keyless entry system, or a software issue.
B0295: Audio System Malfunction
The B0295 code indicates a malfunction in the audio system, such as a faulty amplifier, speaker, or wiring issue.
B0296: Airbag System Fault
The B0296 code indicates a fault in the airbag system, likely due to a malfunctioning sensor or wiring issue.
B0297: Climate Control Actuator Malfunction
The B0297 code indicates a malfunction in the climate control system, specifically with the actuator that controls the temperature and fan speed.
B0298: Door Locks Actuator Malfunction
The B0298 code indicates a malfunction in the door lock actuator, which may cause the door locks to malfunction or not function at all.
B0299: Power Window Regulator Malfunction
The B0299 code indicates a problem with the power window regulator, which controls the movement of the window up and down. This can cause the window to malfunction or not function at all.