All OBD2 Diagnostic Codes

Browse our complete database of 16000 diagnostic trouble codes.

B3750 High

B3750: 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.

B3751 Medium

B3751: Audio System Fault

The B3751 code indicates a fault in the audio system, possibly due to a malfunctioning amplifier, speaker, or wiring issue.

B3752 High

B3752: Airbag System Fault

The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.

B3753 Medium

B3753: Climate Control Temperature Sensor Malfunction

The climate control system has detected a malfunction in the temperature sensor, which is used to regulate the air temperature in the vehicle.

B3754 Medium

B3754: Door Locks Actuator Malfunction

The B3754 code indicates a malfunction in the door lock actuator, which prevents the door locks from functioning properly.

B3755 Medium

B3755: Power Window Motor Malfunction

The power window motor is malfunctioning, preventing the window from moving up or down properly.

B3756 Medium

B3756: Seat Position Sensor Malfunction

The seat position sensor is not functioning correctly, causing the seat to malfunction or not move properly.

B3757 Medium

B3757: Exterior Lighting Malfunction

This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.

B3758 High

B3758: 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.

B3759 Medium

B3759: Audio System Malfunction

The B3759 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.

B3760 High

B3760: Airbag System Malfunction

The airbag system has detected a malfunction, which may be due to a faulty sensor, wiring issue, or software problem.

B3761 Medium

B3761: 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.

B3762 Medium

B3762: Door Locks Actuator Malfunction

The B3762 code indicates a malfunction in the door lock actuator, which may cause issues with door locking and unlocking functions.

B3763 Medium

B3763: Power Window Relay Circuit Malfunction

The power window relay circuit has malfunctioned, preventing the windows from functioning properly.

B3764 Medium

B3764: Seat Position Sensor Circuit Malfunction

The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.

B3765 Medium

B3765: Exterior Lighting Malfunction

This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.

B3766 High

B3766: 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.

B3767 Medium

B3767: Audio System Fault

This code indicates a malfunction in the audio system, such as a faulty amplifier, speaker, or wiring issue.

B3768 High

B3768: Airbag System Fault

The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.

B3769 Medium

B3769: Climate Control Fan Motor Malfunction

The B3769 code indicates a malfunction in the climate control fan motor, which may cause the fan to stop working or operate erratically.

B3770 Medium

B3770: Door Locks Malfunction

The B3770 code indicates a malfunction in the door lock system, which can cause issues with locking and unlocking doors.

B3771 Medium

B3771: Power Window Regulator Malfunction

The power window regulator is malfunctioning, preventing the window from moving properly.

B3772 Medium

B3772: Seat Position Sensor Circuit Malfunction

The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position, which can cause issues with seat adjustments and potentially affect airbag deployment.

B3773 Medium

B3773: Exterior Lighting Malfunction

This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.

B3774 Medium

B3774: Body System Security Malfunction

The body control module (BCM) has detected a security malfunction, possibly due to a faulty sensor or wiring issue.

B3775 Medium

B3775: Audio System Malfunction

The B3775 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.

B3776 High

B3776: Airbag System Fault

The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.

B3777 Medium

B3777: Climate Control Fan Motor Fault

The B3777 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 control module.

B3778 Medium

B3778: Door Locks Malfunction

This code indicates a malfunction in the door lock system, preventing proper locking or unlocking of the doors.

B3779 Medium

B3779: Power Window Relay Circuit Malfunction

The power window relay circuit has malfunctioned, preventing the windows from functioning properly.

B3780 Medium

B3780: Seat Position Sensor Malfunction

The seat position sensor has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position, which can cause issues with seat adjustments, airbag deployment, and other safety features.

B3781 Medium

B3781: Exterior Lighting Malfunction

This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.

B3782 Medium

B3782: 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.

B3783 Medium

B3783: Audio System Fault

The B3783 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.

B3784 High

B3784: Airbag System Fault

The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.

B3785 Medium

B3785: Climate Control Fan Motor Malfunction

The B3785 code indicates a malfunction in the climate control fan motor, which may cause the fan to stop working or operate intermittently.

B3786 Medium

B3786: Door Locks Actuator Malfunction

The B3786 code indicates a malfunction in the door lock actuator, which may cause issues with door locking and unlocking functions.

B3787 Medium

B3787: Power Window Regulator Malfunction

The power window regulator has failed, preventing the window from moving up or down properly.

B3788 Medium

B3788: 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.

B3789 Medium

B3789: Exterior Lighting Malfunction

This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.

B3790 Medium

B3790: Body System Security Malfunction

The B3790 code indicates a malfunction in the vehicle's security system, which may cause issues with door locks, alarm systems, or other security-related functions.

B3791 Medium

B3791: Audio System Fault

The B3791 code indicates a fault in the audio system, likely due to a malfunctioning amplifier, speaker, or wiring issue.

B3792 High

B3792: Airbag System Fault

The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.

B3793 Medium

B3793: Climate Control Fan Motor Malfunction

The B3793 code indicates a malfunction in the climate control fan motor, which may cause the fan to stop working or operate erratically.

B3794 Medium

B3794: Door Locks Actuator Malfunction

The B3794 code indicates a malfunction in the door lock actuator, which may cause issues with door locking and unlocking functions.

B3795 Medium

B3795: Power Window Regulator Malfunction

The power window regulator has failed, preventing the window from moving up or down properly.

B3796 Medium

B3796: Seat Position Sensor Circuit Malfunction

The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.

B3797 Medium

B3797: Exterior Lighting Malfunction

This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.

B3798 High

B3798: 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.

B3799 Medium

B3799: Audio System Malfunction

The B3799 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.

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