All OBD2 Diagnostic Codes
Browse our complete database of 16000 diagnostic trouble codes.
B3800: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B3801: Climate Control Fan Motor Malfunction
The B3801 code indicates a malfunction in the climate control fan motor, which may cause the fan to stop working or operate erratically.
B3802: Door Locks Actuator Malfunction
The B3802 code indicates a malfunction in the door lock actuator, which may cause issues with door locking and unlocking functions.
B3803: 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 regulator motor is not receiving power.
B3804: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B3805: Exterior Lighting Malfunction
This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.
B3806: Immobilizer System Malfunction
The immobilizer system has detected a malfunction, preventing the vehicle from starting or running. This code is usually caused by a faulty immobilizer module, key fob, or wiring issue.
B3807: Audio System Malfunction
The B3807 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B3808: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B3809: Climate Control 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.
B3810: Door Locks Malfunction
The B3810 code indicates a malfunction in the door lock system, which can cause issues with locking and unlocking the doors.
B3811: Power Window Circuit Malfunction
The B3811 code indicates a malfunction in the power window circuit, which can cause the windows to malfunction or not function at all.
B3812: 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.
B3813: Body System Code - Malfunctioning Headlight
The B3813 code indicates a malfunction in the headlight system, which can cause the headlights to malfunction or not turn on.
B3814: Body System Security Malfunction
The B3814 code indicates a malfunction in the vehicle's security system, which can prevent the vehicle from starting or cause other security-related issues.
B3815: Audio System Malfunction
The B3815 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B3816: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B3817: Climate Control Actuator Malfunction
The B3817 code indicates a malfunction in the climate control system, specifically with the actuator that controls the temperature and airflow.
B3818: Door Locks Actuator Malfunction
The B3818 code indicates a malfunction in the door lock actuator, which may cause issues with door locking and unlocking functions.
B3819: Power Window Relay Circuit Malfunction
The power window relay circuit has malfunctioned, preventing the windows from functioning properly.
B3820: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B3821: Turn Signal Lamp Malfunction
The B3821 code indicates a malfunction in the turn signal lamp circuit, which can cause the turn signals to malfunction or not function at all.
B3822: 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.
B3823: Audio System Malfunction
The B3823 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B3824: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B3825: Climate Control Fan Motor Malfunction
The B3825 code indicates a malfunction in the climate control fan motor, which may cause the fan to stop working or operate intermittently.
B3826: Door Locks Actuator Malfunction
The door locks actuator is malfunctioning, preventing the doors from locking or unlocking properly.
B3827: Power Window Regulator Malfunction
The power window regulator is malfunctioning, preventing the window from moving up or down properly.
B3828: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B3829: Exterior Lighting Malfunction
This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.
B3830: Body System Security Malfunction
The B3830 code indicates a malfunction in the vehicle's security system, which can cause issues with door locks, alarm systems, and other security-related functions.
B3831: Audio System Fault
The B3831 code indicates a fault in the audio system, possibly due to a malfunctioning amplifier, speaker, or wiring issue.
B3832: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B3833: Climate Control Fan Motor Malfunction
The B3833 code indicates a malfunction in the climate control fan motor, which may cause the fan to stop working or operate intermittently.
B3834: Door Locks Actuator Circuit Malfunction
The B3834 code indicates a malfunction in the door locks actuator circuit, which prevents the door locks from functioning properly.
B3835: Power Window Regulator Malfunction
The power window regulator is malfunctioning, preventing the window from moving properly.
B3836: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B3837: Exterior Lighting Malfunction
This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.
B3838: 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.
B3839: Audio System Malfunction
The B3839 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B3840: Airbag System Malfunction
The airbag system has detected a malfunction, possibly due to a faulty sensor, wiring issue, or software problem.
B3841: Climate Control Fan Motor Malfunction
This code indicates a malfunction in the climate control fan motor, which may cause the fan to not turn on or turn off randomly.
B3842: Door Locks Actuator Malfunction
The B3842 code indicates a malfunction in the door lock actuator, which prevents the door locks from functioning properly.
B3843: Power Window Regulator Malfunction
The power window regulator has failed, preventing the window from moving up or down properly.
B3844: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B3845: Exterior Lighting Malfunction
This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.
B3846: Immobilizer System Malfunction
The immobilizer system has detected a malfunction, preventing the vehicle from starting. This code is often caused by a faulty immobilizer module, key fob, or wiring issue.
B3847: Audio System Fault
This code indicates a malfunction in the audio system, such as a faulty amplifier, speaker, or wiring issue.
B3848: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B3849: Climate Control Temperature Sensor Malfunction
This code indicates a malfunction in the climate control temperature sensor, which can cause issues with the air conditioning and heating systems.