All OBD2 Diagnostic Codes
Browse our complete database of 16000 diagnostic trouble codes.
B2100: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B2101: 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.
B2102: Body Control Module (BCM) Security System Malfunction
The Body Control Module (BCM) has detected a security system malfunction, which can prevent the vehicle from starting or running.
B2103: Audio System Fault
The B2103 code indicates a fault in the audio system, which may cause issues with sound quality, volume, or functionality.
B2104: Airbag System Failure
The airbag system has detected a malfunction or failure, which may prevent the airbags from deploying in the event of a crash.
B2105: Climate Control Temperature Sensor Malfunction
The B2105 code indicates a malfunction in the climate control temperature sensor, which regulates the temperature of the air blown through the vents.
B2106: Door Locks Actuator Circuit Malfunction
The B2106 code indicates a malfunction in the door locks actuator circuit, which may cause issues with door locking and unlocking functions.
B2107: Power Window Circuit Malfunction
The B2107 code indicates a problem with the power window circuit, which can cause windows to malfunction or not function at all.
B2108: 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.
B2109: Turn Signal/Hazard Light Malfunction
The B2109 code indicates a problem with the turn signal or hazard light system, which may cause the lights to malfunction or not function at all.
B2110: Body Control Module (BCM) Security Malfunction
The Body Control Module (BCM) has detected a security malfunction, possibly due to a faulty sensor, wiring issue, or software problem.
B2111: Audio System Malfunction
The B2111 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B2112: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B2113: Climate Control Fan Motor Malfunction
The B2113 code indicates a malfunction in the climate control fan motor, which may cause the fan to stop working or operate erratically.
B2114: Door Locks Actuator Circuit Malfunction
The B2114 code indicates a malfunction in the door locks actuator circuit, which may cause issues with door locking and unlocking functions.
B2115: Power Window Circuit Malfunction
The B2115 code indicates a malfunction in the power window circuit, which can cause windows to malfunction or not function at all.
B2116: 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.
B2117: Turn Signal Lamp Malfunction
The B2117 code indicates a malfunction in the turn signal lamp circuit, which may cause the turn signal lights to malfunction or not function at all.
B2118: 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.
B2119: Audio System Malfunction
The B2119 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B2120: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B2121: Climate Control Fan Motor Malfunction
The B2121 code indicates a malfunction in the climate control fan motor, which may cause the fan to stop working or operate erratically.
B2122: Door Locks Actuator Circuit Malfunction
The B2122 code indicates a malfunction in the door locks actuator circuit, which may cause issues with door locking or unlocking.
B2123: Power Window Relay Circuit Malfunction
The power window relay circuit has malfunctioned, preventing the windows from functioning properly.
B2124: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B2125: Turn Signal Lamp Malfunction
The B2125 code indicates a malfunction in the turn signal lamp circuit, which can cause the turn signal lights to malfunction or not function at all.
B2126: 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.
B2127: Audio System Fault
This code indicates a malfunction in the audio system, such as a faulty amplifier, speaker, or wiring issue.
B2128: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B2129: Climate Control Fan Motor Fault
The B2129 code indicates a fault in the climate control fan motor circuit, which may cause the fan to malfunction or not function at all.
B2130: Door Locks Malfunction
The B2130 code indicates a malfunction in the door lock system, which may cause the doors to lock or unlock unexpectedly, or fail to function properly.
B2131: Power Window Relay Circuit Malfunction
The power window relay circuit has malfunctioned, preventing the windows from functioning properly.
B2132: 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.
B2133: Exterior Lighting Malfunction
This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.
B2134: 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.
B2135: Audio System Fault
The B2135 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B2136: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B2137: Climate Control Fan Motor Malfunction
The B2137 code indicates a malfunction in the climate control fan motor, which may cause the fan to stop working or operate erratically.
B2138: Door Locks Actuator Circuit Malfunction
The B2138 code indicates a malfunction in the door locks actuator circuit, which may cause issues with door locking or unlocking.
B2139: Power Window Relay Circuit Malfunction
The power window relay circuit has malfunctioned, preventing the windows from functioning properly.
B2140: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B2141: Turn Signal Lamp Malfunction
The B2141 code indicates a malfunction in the turn signal lamp circuit, which can cause the turn signals to malfunction or not function at all.
B2142: Body System Security Malfunction
The body control module (BCM) has detected a security malfunction, possibly due to a faulty sensor, wiring issue, or software problem.
B2143: Audio System Malfunction
The B2143 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B2144: Airbag System Fault
The airbag system has detected a fault, which may be related to a malfunctioning sensor, wiring issue, or faulty airbag module.
B2145: Climate Control Blower Motor Fault
The climate control system has detected a fault in the blower motor circuit, which may cause issues with airflow and temperature control.
B2146: Door Locks Actuator Malfunction
The B2146 code indicates a malfunction in the door lock actuator, which may cause the door locks to malfunction or not function at all.
B2147: Power Window Relay Circuit Malfunction
The power window relay circuit has malfunctioned, preventing the windows from functioning properly. This code is often accompanied by a warning light on the dashboard.
B2148: 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.
B2149: Exterior Lighting Malfunction
This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.