All OBD2 Diagnostic Codes
Browse our complete database of 16000 diagnostic trouble codes.
B3850: Door Locks Actuator Malfunction
The B3850 code indicates a malfunction in the door lock actuator, which may cause the doors to malfunction or not lock/unlock properly.
B3851: Power Window Regulator Malfunction
The power window regulator is malfunctioning, preventing the window from moving up or down properly.
B3852: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B3853: Exterior Lighting Malfunction
This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.
B3854: 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.
B3855: Audio System Fault
The B3855 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B3856: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B3857: Climate Control Temperature Sensor Malfunction
The B3857 code indicates a malfunction in the climate control temperature sensor, which regulates the air temperature in the vehicle. This can cause the air to blow at an incorrect temperature or not blow at all.
B3858: Door Locks Actuator Malfunction
The B3858 code indicates a malfunction in the door lock actuator, which prevents the door locks from functioning properly.
B3859: Power Window Relay Circuit Malfunction
The power window relay circuit has malfunctioned, preventing the windows from functioning properly.
B3860: 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.
B3861: Exterior Lighting Malfunction
The B3861 code indicates a malfunction in the exterior lighting system, such as the headlights, taillights, or turn signals.
B3862: 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.
B3863: Audio System Fault
The B3863 code indicates a fault in the audio system, possibly due to a malfunctioning amplifier, speaker, or wiring issue.
B3864: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B3865: Climate Control Fan Motor Malfunction
The B3865 code indicates a malfunction in the climate control fan motor, which may cause the fan to malfunction or not function at all.
B3866: Door Locks Actuator Malfunction
The door locks actuator is malfunctioning, preventing the doors from locking or unlocking properly.
B3867: Power Window Regulator Malfunction
The power window regulator has failed, preventing the window from moving up or down properly.
B3868: 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.
B3869: Exterior Lighting Malfunction
This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.
B3870: 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 being started.
B3871: Audio System Malfunction
This code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B3872: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B3873: Climate Control Fan Motor Fault
The B3873 code indicates a fault in the climate control fan motor, which may be due to a faulty motor, wiring issue, or faulty temperature sensor.
B3874: Door Locks Actuator Malfunction
The B3874 code indicates a malfunction in the door lock actuator, which may cause issues with door locking and unlocking functions.
B3875: Power Window Regulator Malfunction
The power window regulator is malfunctioning, preventing the window from moving properly. This code is usually accompanied by a warning light on the dashboard.
B3876: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B3877: Exterior Lighting Malfunction
This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.
B3878: 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.
B3879: Audio System Malfunction
This code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B3880: Airbag System Malfunction
The airbag system has malfunctioned, preventing the airbags from deploying properly in the event of a crash. This code is often accompanied by other airbag-related codes.
B3881: Climate Control Fan Motor Malfunction
This code indicates a malfunction in the climate control fan motor, which may cause issues with airflow and temperature regulation.
B3882: Door Locks Actuator Malfunction
The B3882 code indicates a malfunction in the door lock actuator, which may cause issues with door locking and unlocking functions.
B3883: Power Window Relay Circuit Malfunction
The power window relay circuit has malfunctioned, preventing the windows from functioning properly.
B3884: 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.
B3885: Exterior Lighting Malfunction
This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.
B3886: Immobilizer System Malfunction
The immobilizer system has detected a malfunction, preventing the vehicle from starting or running. This code is often related to issues with the key fob, ignition switch, or immobilizer module.
B3887: Audio System Fault
The B3887 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B3888: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B3889: Climate Control System Malfunction
The B3889 code indicates a malfunction in the climate control system, which may cause issues with temperature regulation, air flow, or fan operation.
B3890: Door Locks Actuator Malfunction
The B3890 code indicates a malfunction in the door lock actuator, which may cause issues with door locking and unlocking functions.
B3891: Power Window Relay Circuit Malfunction
The power window relay circuit has malfunctioned, preventing the windows from functioning properly.
B3892: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B3893: Exterior Lighting Malfunction
The B3893 code indicates a malfunction in the exterior lighting system, such as the headlights, taillights, or turn signals.
B3894: 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.
B3895: Audio System Fault
The B3895 code indicates a fault in the audio system, likely due to a malfunctioning amplifier, speaker, or wiring issue.
B3896: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B3897: Climate Control Fan Motor Malfunction
The B3897 code indicates a malfunction in the climate control fan motor, which may cause the fan to stop working or operate erratically.
B3898: Door Locks Actuator Circuit Malfunction
The B3898 code indicates a malfunction in the door locks actuator circuit, which may cause issues with door locking and unlocking functions.
B3899: Power Window Regulator Malfunction
The power window regulator has failed, preventing the window from moving up or down properly.