All OBD2 Diagnostic Codes
Browse our complete database of 16000 diagnostic trouble codes.
B3700: Seat Position Sensor Malfunction
The seat position sensor has failed or is malfunctioning, causing the seat to malfunction or not function properly.
B3701: Exterior Lighting Malfunction
This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.
B3702: Immobilizer System Malfunction
The immobilizer system has detected a malfunction, preventing the vehicle from starting or running. This code is usually related to a faulty immobilizer module, key fob, or sensor.
B3703: Audio System Fault
The B3703 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B3704: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B3705: Climate Control Fan Motor Malfunction
The B3705 code indicates a malfunction in the climate control fan motor, which may cause the fan to malfunction or not function at all.
B3706: Door Locks Actuator Malfunction
The B3706 code indicates a malfunction in the door lock actuator, which may cause issues with door locking and unlocking functions.
B3707: Power Window Regulator Malfunction
The power window regulator is malfunctioning, preventing the window from moving up or down properly.
B3708: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B3709: Exterior Lighting Malfunction
This code indicates a problem with the exterior lighting system, such as faulty headlights, taillights, or turn signals.
B3710: 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.
B3711: Audio System Malfunction
The B3711 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B3712: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B3713: Climate Control Fan Motor Malfunction
The B3713 code indicates a malfunction in the climate control fan motor, which may cause the fan to malfunction or not turn on.
B3714: Door Locks Actuator Malfunction
The B3714 code indicates a malfunction in the door lock actuator, which may cause the door locks to malfunction or not function at all.
B3715: Power Window Regulator Malfunction
The power window regulator has failed, preventing the window from moving up or down properly.
B3716: 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.
B3717: Exterior Lighting Malfunction
This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.
B3718: 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.
B3719: Audio System Malfunction
The B3719 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B3720: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B3721: Climate Control Fan Motor Malfunction
The B3721 code indicates a malfunction in the climate control fan motor, which may cause the fan to stop working or operate erratically.
B3722: Door Locks Actuator Malfunction
The B3722 code indicates a malfunction in the door lock actuator, which may cause the door locks to malfunction or not function at all.
B3723: Power Window Regulator Malfunction
The power window regulator has failed, preventing the window from moving up or down properly.
B3724: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B3725: Exterior Lighting Malfunction
The B3725 code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or brake light.
B3726: 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.
B3727: Audio System Malfunction
This code indicates a malfunction in the audio system, such as faulty speakers, amplifier, or wiring issues.
B3728: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B3729: Climate Control Temperature Sensor Malfunction
The B3729 code indicates a malfunction in the climate control temperature sensor, which regulates the temperature in the vehicle's cabin.
B3730: Door Locks Malfunction
The B3730 code indicates a malfunction in the door lock system, which can cause issues with locking and unlocking the doors.
B3731: Power Window Regulator Malfunction
The power window regulator is malfunctioning, preventing the window from moving up or down properly.
B3732: 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.
B3733: Exterior Lighting Malfunction
This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.
B3734: 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.
B3735: Audio System Fault
The B3735 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B3736: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B3737: Climate Control Temperature Sensor Malfunction
The B3737 code indicates a malfunction in the climate control temperature sensor, which is responsible for monitoring the temperature of the air entering the cabin.
B3738: Door Locks Actuator Malfunction
The B3738 code indicates a malfunction in the door lock actuator, which may cause issues with door locking and unlocking functions.
B3739: Power Window Relay Circuit Malfunction
The power window relay circuit has malfunctioned, preventing the windows from functioning properly.
B3740: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B3741: Exterior Lighting Malfunction
This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.
B3742: 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.
B3743: Audio System Fault
The B3743 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B3744: Airbag System Malfunction
The airbag system has detected a malfunction, possibly due to a faulty sensor, wiring issue, or software problem.
B3745: Climate Control Fan Motor Fault
The B3745 code indicates a fault in the climate control fan motor, which may be due to a faulty motor, wiring issue, or a problem with the fan speed control module.
B3746: Door Locks Actuator Malfunction
The B3746 code indicates a malfunction in the door lock actuator, which prevents the doors from locking or unlocking properly.
B3747: Power Window Regulator Malfunction
The power window regulator has failed, preventing the window from moving up or down properly.
B3748: Seat Position Sensor Malfunction
The seat position sensor has failed to provide accurate data to the vehicle's computer, causing issues with seat adjustment and potentially affecting airbag deployment.
B3749: Exterior Lighting Malfunction
This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.