All OBD2 Diagnostic Codes
Browse our complete database of 16000 diagnostic trouble codes.
C0400: Brake System Malfunction
The C0400 code indicates a malfunction in the brake system, possibly due to a faulty brake sensor, faulty brake switch, or a problem with the brake fluid level.
C0401: Left Front Suspension Strut Friction Bushing Fault
The C0401 code indicates a fault in the left front suspension strut friction bushing, which can cause uneven tire wear, vibration, and noise.
C0402: Steering Column Position Sensor Circuit Malfunction
The power steering control module has detected a malfunction in the steering column position sensor circuit, which may cause erratic steering behavior or difficulty turning the wheels.
C0403: Electronic Stability Control (ESC) Malfunction
The Electronic Stability Control (ESC) system has detected a malfunction, which may cause the vehicle to lose traction or stability.
C0404: Traction Control System Malfunction
The traction control system has detected a malfunction, likely due to a faulty wheel speed sensor or a problem with the traction control module.
C0405: Wheel Speed Sensor Malfunction
The wheel speed sensor malfunction code indicates that the vehicle's anti-lock braking system (ABS) has detected an issue with one or more wheel speed sensors, which are used to monitor wheel speed and rotation.
C0406: ABS System Malfunction
The ABS system has detected a malfunction in the wheel speed sensor circuit, which may cause the ABS system to malfunction or not function at all.
C0407: Brake System Malfunction
The C0407 code indicates a malfunction in the brake system, likely due to a faulty brake sensor or a problem with the brake fluid level.
C0408: Rear Suspension Control Arm Fracture
This code indicates a fracture in the rear suspension control arm, which can cause uneven tire wear, vibrations, and loss of handling stability.
C0409: Steering Column Position Sensor Circuit Malfunction
The C0409 code indicates a problem with the steering column position sensor circuit, which monitors the steering column's position and sends signals to the vehicle's computer. This malfunction can cause issues with the power steering system, steering wheel position, and potentially affect the vehicle's stability.
C0410: Electronic Stability Control (ESC) Malfunction
The Electronic Stability Control (ESC) system has detected a malfunction, which may cause reduced traction and stability control.
C0411: Traction Control System Malfunction
The traction control system has detected a malfunction, likely due to a faulty wheel speed sensor or a problem with the traction control module.
C0412: Wheel Speed Sensor Malfunction
The wheel speed sensor malfunction code indicates that the vehicle's anti-lock braking system (ABS) has detected an issue with one or more wheel speed sensors, which are used to monitor wheel speed and rotation.
C0413: ABS System Malfunction
The ABS system has detected a malfunction in the wheel speed sensor circuit, which may cause the ABS system to malfunction or not function at all.
C0414: Brake System Pressure Sensor Circuit Malfunction
The brake system pressure sensor circuit has malfunctioned, indicating a problem with the brake system's ability to regulate pressure.
C0415: Rear Suspension Control Module (RSCM) Fault
The Rear Suspension Control Module (RSCM) has detected an issue with the rear suspension system, possibly due to a faulty sensor or wiring problem.
C0416: Electric Power Steering (EPS) Fault
The C0416 code indicates a fault in the Electric Power Steering (EPS) system, which may cause the steering to become difficult or unresponsive.
C0417: Electronic Stability Control (ESC) Malfunction
The Electronic Stability Control (ESC) system has detected a malfunction, which may cause reduced traction and stability control.
C0418: Traction Control System Malfunction
The traction control system has malfunctioned, likely due to a faulty wheel speed sensor or a problem with the traction control module.
C0419: Wheel Speed Sensor Malfunction
The wheel speed sensor malfunction code indicates that the vehicle's anti-lock braking system (ABS) has detected an issue with one or more wheel speed sensors.
C0420: ABS System Malfunction
The ABS system has detected a malfunction, likely due to a faulty wheel speed sensor or a problem with the ABS module.
Chassis System Code C0421 - Brake System
Chassis system diagnostic trouble code related to brake system operation.
C0422: Suspension Damper or Shock Absorber Fault
This code indicates a fault in the suspension damper or shock absorber, which can cause uneven tire wear, reduced ride quality, and potentially affect vehicle stability.
C0423: Steering Column Position Sensor Circuit Malfunction
The power steering control module has detected a malfunction in the steering column position sensor circuit, which may cause issues with steering feel, stability, and safety.
C0424: Electronic Stability Control (ESC) Malfunction
The Electronic Stability Control (ESC) system has detected a malfunction, which may cause reduced traction and stability control.
C0425: Traction Control System Malfunction
The traction control system has detected a malfunction, which may be caused by a faulty wheel speed sensor, a problem with the traction control module, or a wiring issue.
C0426: Wheel Speed Sensor Malfunction
The wheel speed sensor malfunction code C0426 indicates a problem with the wheel speed sensor circuit, which is used to monitor the speed of the vehicle's wheels.
C0427: ABS System Malfunction
The ABS system has malfunctioned, preventing the vehicle from functioning properly. This code indicates a problem with the ABS sensor or wiring.
C0428: Brake System Pressure Sensor Circuit Malfunction
The brake system pressure sensor circuit has malfunctioned, indicating a problem with the brake system's hydraulic pressure.
C0429: Rear Suspension Control Module (RSCM) Fault
The Rear Suspension Control Module (RSCM) has detected an issue with the rear suspension system, possibly due to a faulty sensor or wiring problem.
C0430: Steering Column Position Sensor Circuit Malfunction
The power steering control module has detected a malfunction in the steering column position sensor circuit, which may cause erratic steering behavior or difficulty turning the wheels.
C0431: Electronic Stability Control (ESC) Malfunction
The Electronic Stability Control (ESC) system has detected a malfunction, which may cause the vehicle to lose traction or stability.
C0432: Traction Control Malfunction
The traction control system has malfunctioned, likely due to a faulty wheel speed sensor or a problem with the traction control module.
C0433: Wheel Speed Sensor Malfunction
The wheel speed sensor malfunction code C0433 indicates that the vehicle's anti-lock braking system (ABS) or traction control system (TCS) has detected an issue with one or more wheel speed sensors.
C0434: ABS System Malfunction
The ABS system has malfunctioned, likely due to a faulty wheel speed sensor or a problem with the ABS module.
C0435: Brake System Pressure Sensor Circuit Malfunction
The brake system pressure sensor circuit has malfunctioned, indicating a problem with the brake system's ability to regulate pressure.
C0436: Rear Suspension Lower Control Arm Fracture
This code indicates a fracture in the rear suspension lower control arm, which can cause uneven tire wear, vibration, and loss of handling stability.
C0437: Steering Column Position Sensor Circuit Malfunction
The power steering column position sensor circuit has malfunctioned, preventing the vehicle's computer from accurately monitoring the steering column's position.
C0438: Electronic Stability Control (ESC) Malfunction
The Electronic Stability Control (ESC) system has detected a malfunction, which may cause the vehicle to lose traction or stability.
C0439: Traction Control System Malfunction
The traction control system has malfunctioned, likely due to a faulty wheel speed sensor or a problem with the traction control module.
C0440: Wheel Speed Sensor Malfunction
The wheel speed sensor malfunction code indicates that the vehicle's anti-lock braking system (ABS) or traction control system (TCS) has detected an issue with one or more wheel speed sensors.
C0441: ABS System Malfunction
The ABS system has detected a malfunction in the wheel speed sensor circuit, which may cause the ABS system to malfunction or not function at all.
C0442: Brake System Pressure Sensor Circuit Malfunction
The brake system pressure sensor circuit has malfunctioned, indicating a problem with the brake system's ability to regulate pressure.
C0443: Rear Suspension Damper Solenoid Circuit Malfunction
The C0443 code indicates a malfunction in the rear suspension damper solenoid circuit, which can cause uneven tire wear, vibration, and reduced ride quality.
C0444: Steering Column Position Sensor Circuit Malfunction
The power steering control module has detected a malfunction in the steering column position sensor circuit, which may cause erratic steering behavior or difficulty turning the wheels.
C0445: Electronic Stability Control (ESC) Malfunction
The Electronic Stability Control (ESC) system has detected a malfunction, which may cause loss of traction and stability.
C0446: Traction Control Malfunction
The traction control system has detected a malfunction, likely due to a faulty wheel speed sensor or a problem with the traction control module.
C0447: Wheel Speed Sensor Malfunction
The wheel speed sensor malfunction code indicates a problem with the wheel speed sensor circuit, which can cause issues with the vehicle's anti-lock braking system (ABS) and traction control system.
C0448: ABS System Malfunction
The ABS system has malfunctioned, likely due to a faulty wheel speed sensor or a problem with the ABS module.
C0449: Brake System Pressure Sensor Circuit Malfunction
The brake system pressure sensor circuit has malfunctioned, indicating a problem with the brake system's ability to regulate pressure.