All OBD2 Diagnostic Codes
Browse our complete database of 16000 diagnostic trouble codes.
B1600: Airbag System Malfunction
The airbag system has detected a malfunction, which may be due to a faulty sensor, wiring issue, or software problem.
B1601: 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.
B1602: Door Locks Malfunction
The B1602 code indicates a malfunction in the door lock system, which may cause issues with locking or unlocking doors, or even prevent doors from locking or unlocking properly.
B1603: Power Window Circuit Malfunction
The B1603 code indicates a problem with the power window circuit, which can cause windows to malfunction or not function at all.
B1604: Seat Switch Circuit Malfunction
The B1604 code indicates a problem with the seat switch circuit, which controls the seat's position, recline, or lumbar support. This code is usually triggered when the seat switch circuit is open or shorted, preventing the seat from functioning properly.
B1605: Body Control Module (BCM) Lighting Circuit Malfunction
The Body Control Module (BCM) has detected a malfunction in the lighting circuit, which may be causing issues with the vehicle's exterior lights, such as the headlights, taillights, or turn signals.
B1606: 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.
B1607: Audio System Malfunction
The B1607 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B1608: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B1609: Climate Control Temperature Sensor Malfunction
The B1609 code indicates a malfunction in the climate control temperature sensor, which can cause issues with the air conditioning and heating systems.
B1610: Door Locks Malfunction
The B1610 code indicates a malfunction in the door lock system, which may cause the doors to lock or unlock unexpectedly, or fail to lock or unlock at all.
B1611: Power Window Circuit Malfunction
The B1611 code indicates a problem with the power window circuit, which can cause windows to malfunction or not function at all.
B1612: 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.
B1613: Body System Code - Lighting Malfunction
This code indicates a malfunction in the vehicle's lighting system, such as a faulty headlight, taillight, or brake light.
B1614: Body System Security Malfunction
The body control module (BCM) has detected a security-related issue, such as a faulty door ajar switch or a malfunctioning alarm system.
B1615: Audio System Fault
The B1615 code indicates a fault in the audio system, likely due to a malfunctioning amplifier, speaker, or wiring issue.
B1616: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B1617: Climate Control Temperature Sensor Malfunction
The B1617 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.
B1618: Door Locks Actuator Circuit Malfunction
The B1618 code indicates a malfunction in the door locks actuator circuit, which may cause issues with door locking and unlocking functions.
B1619: Power Window Relay Circuit Malfunction
The power window relay circuit has malfunctioned, preventing the windows from functioning properly.
B1620: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B1621: Body Control Module (BCM) - Low Beam Headlight Relay Circuit Malfunction
The Body Control Module (BCM) has detected a malfunction in the low beam headlight relay circuit, which may cause the low beam headlights to malfunction or not function at all.
B1622: Immobilizer System Malfunction
The immobilizer system has detected a malfunction, preventing the engine from starting. This code is often caused by a faulty immobilizer key fob, antenna, or receiver.
B1623: Audio System Fault
The B1623 code indicates a fault in the audio system, possibly due to a malfunctioning amplifier, speaker, or wiring issue.
B1624: Airbag System Circuit Malfunction
The airbag system circuit has malfunctioned, preventing the airbags from deploying properly in the event of a crash.
B1625: Climate Control Temperature Sensor Malfunction
The climate control system has detected a malfunction in the temperature sensor, which may cause inaccurate temperature readings or failure to maintain a set temperature.
B1626: Door Locks Actuator Circuit Malfunction
The B1626 code indicates a malfunction in the door locks actuator circuit, which can cause issues with door locking and unlocking functions.
B1627: Power Window Relay Circuit Malfunction
The power window relay circuit has malfunctioned, preventing the windows from functioning properly.
B1628: 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.
B1629: Body Control Module (BCM) Malfunction - Lighting
The Body Control Module (BCM) has detected a malfunction in the lighting system, which may cause issues with the vehicle's exterior lights, such as the headlights, taillights, or turn signals.
B1630: Body Control Module (BCM) Security System Malfunction
The Body Control Module (BCM) has detected a security system malfunction, which may be caused by a faulty sensor, wiring issue, or software problem.
B1631: Audio System Fault
The B1631 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B1632: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B1633: Climate Control Fan Motor Fault
The B1633 code indicates a fault in the climate control fan motor circuit, which may cause the fan to malfunction or not function at all.
B1634: Door Locks Actuator Malfunction
The B1634 code indicates a malfunction in the door lock actuator, which may cause issues with door locking and unlocking functions.
B1635: Power Window Relay Circuit Malfunction
The power window relay circuit has malfunctioned, preventing the windows from functioning properly.
B1636: 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.
B1637: Exterior Lighting Malfunction
This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.
B1638: 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.
B1639: Audio System Fault
The B1639 code indicates a fault in the audio system, possibly due to a malfunctioning amplifier, speaker, or wiring issue.
B1640: Airbag System Circuit Malfunction
The airbag system circuit has malfunctioned, preventing the airbags from deploying properly in the event of a crash.
B1641: 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.
B1642: Door Locks Actuator Malfunction
The B1642 code indicates a malfunction in the door lock actuator, which may cause the door locks to malfunction or not function at all.
B1643: Power Window Relay Circuit Malfunction
The power window relay circuit has malfunctioned, preventing the windows from functioning properly.
B1644: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B1645: Body System Code - Lighting Malfunction
This code indicates a malfunction in the vehicle's lighting system, such as a faulty headlight, taillight, or brake light.
B1646: 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.
B1647: Audio System Fault
This code indicates a malfunction in the audio system, such as a faulty amplifier, speaker, or wiring issue.
B1648: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B1649: Climate Control Actuator Malfunction
The B1649 code indicates a malfunction in the climate control system, specifically with the actuator that controls the temperature and airflow.