All OBD2 Diagnostic Codes
Browse our complete database of 16000 diagnostic trouble codes.
B3400: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B3401: Climate Control Temperature Sensor Malfunction
The B3401 code indicates a malfunction in the climate control temperature sensor, which is responsible for monitoring the temperature of the air entering the vehicle's cabin.
B3402: Door Locks Actuator Malfunction
The B3402 code indicates a malfunction in the door lock actuator, which may cause the door locks to malfunction or not function at all.
B3403: Power Window Regulator Malfunction
The power window regulator is malfunctioning, preventing the window from moving up or down properly.
B3404: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B3405: Exterior Lighting Malfunction
This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.
B3406: 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.
B3407: Audio System Malfunction
The B3407 code indicates a malfunction in the audio system, which may cause issues with sound quality, volume, or functionality.
B3408: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B3409: Climate Control Fan Motor Malfunction
The B3409 code indicates a malfunction in the climate control fan motor, which may cause the fan to stop working or operate erratically.
B3410: Door Locks Actuator Malfunction
The B3410 code indicates a malfunction in the door lock actuator, which prevents the door locks from functioning properly.
B3411: Power Window Regulator Malfunction
The power window regulator is malfunctioning, preventing the window from moving up or down properly.
B3412: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B3413: Exterior Lighting Malfunction
The B3413 code indicates a malfunction in the exterior lighting system, such as the headlights, taillights, or turn signals.
B3414: 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.
B3415: Audio System Fault
The B3415 code indicates a fault in the audio system, which may cause issues with sound quality, volume, or functionality.
B3416: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B3417: Climate Control System Malfunction
This code indicates a malfunction in the climate control system, possibly due to a faulty temperature sensor, clogged air ducts, or a malfunctioning blower motor.
B3418: Door Locks Actuator Malfunction
The B3418 code indicates a malfunction in the door lock actuator, which prevents the doors from locking or unlocking properly.
B3419: Power Window Relay Circuit Malfunction
The power window relay circuit has malfunctioned, preventing the windows from functioning properly.
B3420: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position. This can cause issues with seat adjustments, airbag deployment, and other safety features.
B3421: Exterior Lighting Malfunction
The B3421 code indicates a malfunction in the exterior lighting system, such as the headlights, taillights, or turn signals.
B3422: 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.
B3423: Audio System Fault
The B3423 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B3424: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B3425: Climate Control System Malfunction
This code indicates a malfunction in the climate control system, possibly due to a faulty temperature sensor, clogged air ducts, or a malfunctioning blower motor.
B3426: Door Locks Actuator Malfunction
The B3426 code indicates a malfunction in the door lock actuator, which prevents the doors from locking or unlocking properly.
B3427: Power Window Motor Fault
The power window motor is malfunctioning, preventing the window from moving properly.
B3428: Seat Position Sensor Malfunction
The seat position sensor has failed or is malfunctioning, preventing the vehicle's computer from accurately detecting the seat's position.
B3429: Exterior Lighting Malfunction
The B3429 code indicates a malfunction in the exterior lighting system, such as the headlights, taillights, or turn signals.
B3430: Body System Security Malfunction
The B3430 code indicates a malfunction in the vehicle's security system, which may cause issues with door locks, alarm systems, or other security-related functions.
B3431: Audio System Fault
The B3431 code indicates a fault in the audio system, likely due to a malfunctioning amplifier, speaker, or wiring issue.
B3432: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B3433: Climate Control Fan Motor Malfunction
The B3433 code indicates a malfunction in the climate control fan motor, which may cause the fan to stop working or operate erratically.
B3434: Door Locks Actuator Malfunction
The B3434 code indicates a malfunction in the door lock actuator, which prevents the door locks from functioning properly.
B3435: Power Window Regulator Malfunction
The power window regulator is malfunctioning, preventing the window from moving properly. This code is often accompanied by a warning light on the dashboard.
B3436: 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.
B3437: Exterior Lighting Malfunction
The B3437 code indicates a malfunction in the exterior lighting system, such as the headlights, taillights, or turn signals.
B3438: Immobilizer System Malfunction
The immobilizer system has detected a malfunction, preventing the vehicle from starting. This code is usually caused by a faulty immobilizer module, key fob, or wiring issue.
B3439: Audio System Malfunction
The B3439 code indicates a malfunction in the audio system, likely due to a faulty amplifier, speaker, or wiring issue.
B3440: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B3441: Climate Control Temperature Sensor Malfunction
The B3441 code indicates a malfunction in the climate control temperature sensor, which may cause the air conditioning or heating system to malfunction or not function at all.
B3442: Door Locks Actuator Malfunction
The B3442 code indicates a malfunction in the door lock actuator, which may cause the doors to malfunction or not lock/unlock properly.
B3443: Power Window Regulator Malfunction
The power window regulator is malfunctioning, preventing the window from moving up or down properly.
B3444: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B3445: Exterior Lighting Malfunction
The B3445 code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.
B3446: 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.
B3447: Audio System Malfunction
The B3447 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B3448: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B3449: Climate Control Fan Motor Fault
The B3449 code indicates a fault in the climate control fan motor, which may be due to a faulty motor, wiring issue, or faulty temperature sensor.