All OBD2 Diagnostic Codes
Browse our complete database of 16000 diagnostic trouble codes.
B0650: Door Locks Actuator Circuit Malfunction
The B0650 code indicates a malfunction in the door locks actuator circuit, which controls the door locks' operation. This can cause issues with locking and unlocking the doors.
B0651: Power Window Circuit Malfunction
The power window circuit has malfunctioned, preventing the windows from functioning properly. This code is typically set when the window regulator or motor is faulty.
B0652: 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.
B0653: 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.
B0654: Security System Malfunction
This code indicates a malfunction in the vehicle's security system, which may cause issues with door locks, alarm systems, or other security-related functions.
B0655: Audio System Malfunction
The B0655 code indicates a malfunction in the audio system, such as faulty speakers, amplifier, or wiring issues.
B0656: Airbag System - Internal Circuit Short to Ground
The airbag system has detected an internal circuit short to ground, which can prevent the airbag from deploying in the event of an accident.
B0657: Climate Control Fan Motor Fault
This code indicates a fault in the climate control fan motor circuit, which may cause the fan to malfunction or not turn on.
B0658: Door Locks Actuator Circuit Malfunction
The B0658 trouble code indicates a malfunction in the door locks actuator circuit, which can cause issues with door locking and unlocking functions.
B0659: Power Window Regulator Circuit Malfunction
This code indicates a problem with the power window regulator circuit, which controls the movement of the windows. The issue may be related to a faulty regulator motor, faulty window switch, or wiring problems.
B0660: Seat Switch Circuit Malfunction
The seat switch circuit has malfunctioned, preventing the driver's seat from functioning properly. This code is typically set when the seat switch circuit is open or shorted.
B0661: Turn Signal Lamp Malfunction
The B0661 code indicates a malfunction in the turn signal lamp circuit, which can cause the turn signals to malfunction or not function at all.
B0662: Immobilizer System Malfunction
The immobilizer system has malfunctioned, preventing the engine from starting or running. This code is typically set when the immobilizer system detects a problem with the key fob, keyless entry system, or ignition switch.
B0663: Audio System Fault
The B0663 code indicates a fault in the audio system's amplifier or speaker circuit, which may cause distorted or no sound from the speakers.
B0664: Airbag System Deployment Sensor Circuit Malfunction
The airbag system deployment sensor circuit has malfunctioned, preventing the airbag from deploying in the event of a crash.
B0665: Climate Control Fan Motor Malfunction
This code indicates a malfunction in the climate control fan motor, which may cause the fan to stop working or operate intermittently.
B0666: Door Locks Actuator Circuit Malfunction
The B0666 code indicates a malfunction in the door locks actuator circuit, which prevents the door locks from functioning properly.
B0667: Power Window Regulator Malfunction
The power window regulator has failed, causing one or more windows to malfunction or not function at all.
B0668: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B0669: Malfunction of Exterior Lighting
This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or brake light.
B0670: Body System Code - Security System Malfunction
The B0670 code indicates a malfunction in the vehicle's security system, which may cause the alarm to sound unnecessarily or fail to arm/disarm properly.
B0671: Audio System Malfunction
The B0671 code indicates a malfunction in the audio system, likely due to a faulty amplifier, speaker, or wiring issue.
B0672: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B0673: Climate Control Temperature Sensor Circuit Malfunction
This code indicates a malfunction in the temperature sensor circuit of the climate control system, which can cause inaccurate temperature readings and poor air flow.
B0674: Door Locks Actuator Malfunction
The B0674 code indicates a malfunction in the door lock actuator, which may cause the doors to malfunction or not lock/unlock properly.
B0675: Power Window Regulator Malfunction
This code indicates a problem with the power window regulator, which controls the movement of the window glass. The regulator may be faulty, stuck, or damaged, preventing the window from operating properly.
B0676: Seat Position Sensor Circuit Malfunction
This code indicates a problem with the seat position sensor circuit, which is used to monitor the position and movement of the seat.
B0677: Exterior Lighting Malfunction
This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.
B0678: 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 BCM, security system sensor, or wiring issue.
B0679: Audio System Malfunction
The B0679 code indicates a malfunction in the audio system, which can cause issues with sound quality, volume control, or amplifier function.
B0680: Airbag System Malfunction
The airbag system has malfunctioned, and the vehicle's onboard computer has detected a problem with the airbag module or its wiring.
B0681: Climate Control Malfunction
The B0681 code indicates a malfunction in the climate control system, possibly due to a faulty temperature sensor, faulty blower motor, or a blockage in the air duct.
B0682: Door Locks Circuit Malfunction
The B0682 code indicates a malfunction in the door locks circuit, which can cause issues with unlocking and locking the doors, as well as the trunk and tailgate.
B0683: Window Regulator Malfunction
The Body Control Module (BCM) has detected a problem with the window regulator, which controls the movement of the window up and down.
B0684: Seat Switch Circuit Malfunction
The seat switch circuit has malfunctioned, preventing the seat from functioning properly. This can cause issues with seat adjustment, reclining, or lumbar support.
B0685: Body System Code for Malfunctioning Exterior Lighting
This code indicates a problem with the exterior lighting system, such as faulty headlight, taillight, or brake light operation.
B0686: Body System Code - Security System Malfunction
The B0686 code indicates a malfunction in the vehicle's security system, which may cause issues with door locks, alarm systems, or other security-related functions.
B0687: Audio System Malfunction
This code indicates a malfunction in the audio system, such as no sound, distorted sound, or inability to change tracks.
B0688: Airbag System Fault
The airbag system has detected a fault, which may be caused by a malfunctioning sensor, wiring issue, or faulty airbag module.
B0689: Climate Control Fan Motor Fault
The B0689 code indicates a fault in the climate control fan motor, which may cause the fan to malfunction or not function at all.
B0690: Door Locks Malfunction
The B0690 code indicates a malfunction in the door lock system, which can cause issues with locking and unlocking doors. This code is often accompanied by symptoms such as doors not locking or unlocking properly, or the door lock button not functioning.
B0691: Power Window Switch Circuit Malfunction
The power window switch circuit has malfunctioned, preventing the windows from functioning properly. This code is usually set when the switch is faulty or there is an issue with the wiring.
B0692: Seat Switch Circuit Malfunction
The seat switch circuit has malfunctioned, preventing the seat from functioning properly. This code is often accompanied by other symptoms such as the seat not moving or the seat not locking into place.
B0693: Malfunction of Front Fog Light
The B0693 code indicates a malfunction in the front fog light circuit, which can cause the fog light to not turn on or to stay on continuously.
B0694: Body System Security Malfunction
The body system security module has detected an error or malfunction, which may be caused by a faulty sensor, wiring issue, or software problem.
B0695: Audio System Malfunction
The B0695 code indicates a malfunction in the audio system, which may cause issues with sound quality, volume control, or radio reception.
B0696: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B0697: Climate Control Fan Motor Malfunction
The B0697 code indicates a malfunction in the climate control fan motor, which may cause the fan to not turn on or turn off randomly.
B0698: Door Locks Actuator Malfunction
The Body Control Module (BCM) has detected a malfunction in the door lock actuator circuit, preventing proper door lock operation.
B0699: Window Regulator Motor Fault
The B0699 code indicates a fault in the window regulator motor, which controls the movement of the window. This can cause the window to malfunction or not function at all.