All OBD2 Diagnostic Codes
Browse our complete database of 16000 diagnostic trouble codes.
C3950: Suspension Damper Solenoid Valve Circuit Malfunction
The C3950 code indicates a malfunction in the suspension damper solenoid valve circuit, which can cause uneven suspension operation, vibration, and reduced ride comfort.
C3951: Electric Power Steering (EPS) System Fault
The C3951 code indicates a fault in the Electric Power Steering (EPS) system, which may cause the vehicle's steering to become difficult or unresponsive.
C3952: 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.
C3953: 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.
C3954: Wheel Speed Sensor Malfunction
The wheel speed sensor malfunction code C3954 indicates a problem with the wheel speed sensor circuit, which is used to monitor the speed of the vehicle's wheels.
C3955: ABS System Malfunction
The ABS system has malfunctioned, likely due to a faulty wheel speed sensor or a problem with the ABS module.
C3956: 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.
C3957: Rear Suspension Strut Friction Bushing Fault
This code indicates a faulty rear suspension strut friction bushing, which can cause uneven tire wear, vibration, and noise.
C3958: Steering Column Position Sensor Circuit Malfunction
The powertrain control module (PCM) has detected a malfunction in the steering column position sensor circuit, which is used to monitor the steering column's position and angle.
C3959: Electronic Stability Control (ESC) Malfunction
The Electronic Stability Control (ESC) system has detected a malfunction, which may cause loss of traction and stability.
C3960: Traction Control System Malfunction
The traction control system has detected a malfunction, which may be due to a faulty wheel speed sensor, faulty ABS sensor, or a problem with the traction control module.
C3961: Wheel Speed Sensor Malfunction
This code indicates a problem with one or more wheel speed sensors, which monitor wheel rotation speed and send signals to the vehicle's computer. The sensor(s) may be faulty, dirty, or damaged.
C3962: ABS System Malfunction
The ABS system has malfunctioned, likely due to a faulty wheel speed sensor or a problem with the ABS module.
C3963: Brake System Pressure Sensor Circuit Malfunction
The brake system pressure sensor circuit has malfunctioned, causing the brake system to malfunction. This code is typically set when the sensor detects an abnormal brake fluid pressure.
C3964: 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 comfort, and potentially affect vehicle stability.
C3965: Electric Power Steering (EPS) System Fault
The C3965 code indicates a fault in the Electric Power Steering (EPS) system, which may cause the steering to become difficult or unresponsive.
C3966: Electronic Stability Control (ESC) Malfunction
The Electronic Stability Control (ESC) system has detected a malfunction, which can cause the vehicle to lose traction or stability, potentially leading to a loss of control.
C3967: Traction Control System Malfunction
The traction control system has detected a malfunction, which may be caused by a faulty wheel speed sensor, a faulty anti-lock braking system (ABS) module, or a problem with the traction control system's wiring.
C3968: 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.
C3969: 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.
C3970: 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.
C3971: Rear Suspension Strut Friction Bushing Fault
The C3971 code indicates a fault in the rear suspension strut friction bushing, which can cause uneven tire wear, vibration, and reduced handling.
C3972: Electric Power Steering (EPS) System Fault
The C3972 code indicates a fault in the Electric Power Steering (EPS) system, which may cause the steering to become difficult or unresponsive.
C3973: 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.
C3974: 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.
C3975: Wheel Speed Sensor Malfunction
The wheel speed sensor malfunction code C3975 indicates a problem with the wheel speed sensor circuit, which monitors the speed of the vehicle's wheels and sends the data to the vehicle's computer.
C3976: 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.
C3977: Brake System Pressure Sensor Circuit Malfunction
The brake system pressure sensor circuit has malfunctioned, causing the brake system to malfunction.
C3978: Rear Suspension Control Module (RSCM) Fault
The Rear Suspension Control Module (RSCM) has detected an issue with the rear suspension system, such as a faulty sensor or wiring problem.
C3979: Steering Column Position Sensor Circuit Malfunction
The power steering column position sensor circuit has malfunctioned, causing the vehicle's computer to set this code. This sensor helps the vehicle's computer determine the correct steering ratio and assist the driver with power steering.
C3980: 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.
C3981: 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.
C3982: Wheel Speed Sensor Malfunction
The wheel speed sensor malfunction code C3982 indicates a problem with the wheel speed sensor circuit, which is used to monitor the speed of the vehicle's wheels.
C3983: ABS System Fault
The ABS system has detected a fault in the wheel speed sensor circuit, which may cause the ABS system to malfunction or not function at all.
C3984: 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.
C3985: Rear Suspension Damper Fault
The C3985 code indicates a fault in the rear suspension damper, which can cause uneven tire wear, vibrations, and reduced handling.
C3986: Steering Column Position Sensor Circuit Malfunction
The powertrain control module (PCM) has detected a malfunction in the steering column position sensor circuit, which is used to monitor the steering column's position and angle.
C3987: 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.
C3988: 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.
Chassis System Code C3989 - Wheel Speed Sensors
Chassis system diagnostic trouble code related to wheel speed sensors operation.
C3990: 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.
C3991: Brake System Pressure Sensor Circuit Malfunction
The brake system pressure sensor circuit has malfunctioned, indicating a problem with the brake system's hydraulic pressure.
C3992: Suspension Damper or Mount Fault
This code indicates a fault in the suspension damper or mount, which can cause uneven tire wear, vibrations, and reduced handling.
C3993: Steering Column Position Sensor Circuit Malfunction
The powertrain control module (PCM) has detected a malfunction in the steering column position sensor circuit, which is used to monitor the steering column's position and angle.
C3994: 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.
C3995: 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.
C3996: 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 can cause the ABS to malfunction.
Chassis System Code C3997 - ABS System
Chassis system diagnostic trouble code related to abs system operation.
Chassis System Code C3998 - Brake System
Chassis system diagnostic trouble code related to brake system operation.
C3999: Suspension Damper Fault
The C3999 code indicates a fault in the suspension damper, which can cause uneven tire wear, vibrations, and reduced handling.