All OBD2 Diagnostic Codes
Browse our complete database of 16000 diagnostic trouble codes.
B3500: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B3501: 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.
B3502: Body System Security Malfunction
The B3502 code indicates a malfunction in the vehicle's security system, which may cause issues with door locks, alarm systems, or other security-related functions.
B3503: Audio System Fault
The B3503 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B3504: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B3505: Climate Control Fan Motor Malfunction
The B3505 code indicates a malfunction in the climate control fan motor, which may cause the fan to stop working or operate intermittently.
B3506: Door Locks Actuator Malfunction
The B3506 code indicates a malfunction in the door lock actuator, which prevents the doors from locking or unlocking properly.
B3507: Power Window Relay Circuit Malfunction
The power window relay circuit has malfunctioned, preventing the windows from functioning properly.
B3508: 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.
B3509: Exterior Lighting Malfunction
The B3509 code indicates a malfunction in the exterior lighting system, such as the headlights, taillights, or turn signals.
B3510: Body System Security Malfunction
The B3510 code indicates a malfunction in the vehicle's security system, which may cause issues with door locks, alarm systems, or other security-related functions.
B3511: Audio System Malfunction
The B3511 code indicates a malfunction in the audio system, such as a faulty amplifier, speaker, or wiring issue.
B3512: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B3513: Climate Control Fan Motor Malfunction
The B3513 code indicates a malfunction in the climate control fan motor, which may cause the fan to stop working or operate erratically.
B3514: Door Locks Malfunction
The B3514 code indicates a malfunction in the door lock system, which can cause issues with locking and unlocking doors.
B3515: Power Window Regulator Malfunction
The power window regulator is malfunctioning, preventing the window from moving properly.
B3516: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B3517: Exterior Lighting Malfunction
This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.
B3518: Body System Security Malfunction
The body system security module has detected an abnormal condition, such as tampering or unauthorized access, and has set a trouble code.
B3519: Audio System Malfunction
This code indicates a malfunction in the audio system, such as faulty speakers, amplifier, or wiring issues.
B3520: Airbag System Malfunction
The airbag system has detected a malfunction, which may be due to a faulty sensor, wiring issue, or software problem.
B3521: Climate Control Temperature Sensor Malfunction
The B3521 code indicates a malfunction in the climate control temperature sensor, which can cause issues with the air conditioning and heating systems.
B3522: Door Locks Malfunction
The B3522 code indicates a malfunction in the door lock system, which may cause issues with locking or unlocking the doors.
B3523: Power Window Relay Circuit Malfunction
The power window relay circuit has malfunctioned, preventing the windows from functioning properly.
B3524: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B3525: Exterior Lighting Malfunction
This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.
B3526: 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.
B3527: Audio System Malfunction
The B3527 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B3528: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B3529: Climate Control Malfunction
This code indicates a malfunction in the climate control system, possibly due to a faulty temperature sensor, clogged air ducts, or a malfunctioning blower motor.
B3530: Door Locks Malfunction
The B3530 code indicates a malfunction in the door lock system, which may cause the doors to lock or unlock unexpectedly, or fail to function properly.
B3531: Power Window Regulator Malfunction
The power window regulator is malfunctioning, preventing the window from moving up or down properly.
B3532: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B3533: Exterior Lighting Malfunction
The B3533 code indicates a malfunction in the exterior lighting system, such as the headlights, taillights, or turn signals.
B3534: Body System Security Malfunction
The B3534 code indicates a malfunction in the vehicle's security system, which may cause issues with door locks, alarm systems, or other security-related functions.
B3535: Audio System Malfunction
The B3535 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
B3536: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B3537: Climate Control Fan Motor Malfunction
This code indicates a malfunction in the climate control fan motor, which may cause issues with air circulation and temperature regulation.
B3538: Door Locks Actuator Circuit Malfunction
The B3538 code indicates a malfunction in the door locks actuator circuit, which may cause issues with door locking and unlocking functions.
B3539: Power Window Relay Circuit Malfunction
The power window relay circuit has malfunctioned, preventing the windows from functioning properly.
B3540: Seat Position Sensor Circuit Malfunction
The seat position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately detecting the seat's position.
B3541: Exterior Lighting Malfunction
The B3541 code indicates a malfunction in the exterior lighting system, such as the headlights, taillights, or turn signals.
B3542: 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.
B3543: Audio System Fault
The B3543 code indicates a fault in the audio system, likely due to a malfunctioning amplifier, speaker, or wiring issue.
B3544: Airbag System Fault
The airbag system has detected a fault, which may be due to a malfunctioning sensor, wiring issue, or faulty airbag module.
B3545: Climate Control Fan Motor Malfunction
The climate control fan motor has failed or is malfunctioning, causing the fan to not blow air or blow air intermittently.
B3546: Door Locks Actuator Malfunction
The B3546 code indicates a malfunction in the door lock actuator, which may prevent the doors from locking or unlocking properly.
B3547: 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.
B3548: Seat Position Sensor Malfunction
The seat position sensor has failed to send the correct position data to the vehicle's computer, causing issues with seat functionality.
B3549: Exterior Lighting Malfunction
This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.