OBD2 Fault Code Library

Free lookup for thousands of OBD2 trouble codes: filter by family, read short meanings, and open deeper articles. Desktop ELM327 scanner with live data and AI guidance.

OBD2 symptoms

Look up diagnostic trouble codes by what the car is doing: misfire, overheating, rough idle, a check engine light, and other common symptoms.

• Engine misfire
• Engine overheating
• Rough idle
• Check engine light
• Poor fuel economy
• Hard starting
• Engine stalling
• Catalytic converter efficiency
• Oxygen sensor fault
• EVAP leak
• Thermostat not reaching temperature
• Lean air-fuel mixture
• Rich air-fuel mixture
• EGR flow fault
• Engine knock
• Charging system
• Throttle position
• Mass airflow sensor
• Turbo underboost
• Coolant temperature sensor
• Transmission fault

• C1875 — OBD2 code C1875 flags a problem with the sensor and actuator circuits (air suspension RF air spring solenoid output circuit short to battery). The car is usually drivable while you plan the repair. Common culprits: blown fuse feeding the circuit, control module driver fault, corroded, loose or damaged connector.
• C1876 — OBD2 code C1876 flags a problem with the sensor and actuator circuits (air suspension RF air spring solenoid output circuit short to ground). The car is usually drivable while you plan the repair. Common culprits: faulty sensor or actuator of the affected circuit, poor ground connection, blown fuse feeding the circuit.
• C1877 — C1877 — Air Suspension LF Air Spring Solenoid Output Circuit Failure. A fault in the sensor and actuator circuits. The car is usually drivable while you plan the repair. Typical causes: control module driver fault, open or shorted wiring in the circuit, corroded, loose or damaged connector.
• C1878 — Air Suspension LF Air Spring Solenoid Output Circuit Open (C1878): a chassis (brakes/steering/suspension) fault affecting the sensor and actuator circuits. The car is usually drivable while you plan the repair. Most often caused by blown fuse feeding the circuit, faulty sensor or actuator of the affected circuit, open or shorted wiring in the circuit.
• C1879 — Air Suspension LF Air Spring Solenoid Output Circuit Short To Battery (C1879): a chassis (brakes/steering/suspension) fault affecting the sensor and actuator circuits. The car is usually drivable while you plan the repair. Most often caused by open or shorted wiring in the circuit, faulty sensor or actuator of the affected circuit, poor ground connection.
• C1880 — Air Suspension LF Air Spring Solenoid Output Circuit Short To Ground (C1880): a chassis (brakes/steering/suspension) fault affecting the sensor and actuator circuits. The car is usually drivable while you plan the repair. Most often caused by open or shorted wiring in the circuit, poor ground connection, control module driver fault.
• C1881 — Air Suspension RF Height Sensor Circuit Failure (C1881): a chassis (brakes/steering/suspension) fault affecting the sensor and actuator circuits. The car is usually drivable while you plan the repair. Most often caused by poor ground connection, faulty sensor or actuator of the affected circuit, open or shorted wiring in the circuit.
• C1882 — Air Suspension RF Height Sensor Circuit Open (C1882): a chassis (brakes/steering/suspension) fault affecting the sensor and actuator circuits. The car is usually drivable while you plan the repair. Most often caused by poor ground connection, faulty sensor or actuator of the affected circuit, control module driver fault.
• C1883 — Air Suspension RF Height Sensor Circuit Short To Battery (C1883): a chassis (brakes/steering/suspension) fault affecting the sensor and actuator circuits. The car is usually drivable while you plan the repair. Most often caused by open or shorted wiring in the circuit, blown fuse feeding the circuit, poor ground connection.
• C1884 — OBD2 code C1884 flags a problem with the sensor and actuator circuits (air suspension RF height sensor circuit short to ground). The car is usually drivable while you plan the repair. Common culprits: faulty sensor or actuator of the affected circuit, open or shorted wiring in the circuit, control module driver fault.
• C1885 — Air Suspension RR Height Sensor Circuit Failure (C1885): a chassis (brakes/steering/suspension) fault affecting the sensor and actuator circuits. The car is usually drivable while you plan the repair. Most often caused by poor ground connection, blown fuse feeding the circuit, open or shorted wiring in the circuit.
• C1886 — C1886 — Air Suspension RR Height Sensor Circuit Open. A fault in the sensor and actuator circuits. The car is usually drivable while you plan the repair. Typical causes: faulty sensor or actuator of the affected circuit, open or shorted wiring in the circuit, poor ground connection.
• C1887 — OBD2 code C1887 flags a problem with the sensor and actuator circuits (air suspension RR height sensor circuit short to battery). The car is usually drivable while you plan the repair. Common culprits: corroded, loose or damaged connector, poor ground connection, blown fuse feeding the circuit.
• C1888 — OBD2 code C1888 flags a problem with the sensor and actuator circuits (air suspension RR height sensor circuit short to ground). The car is usually drivable while you plan the repair. Common culprits: faulty sensor or actuator of the affected circuit, control module driver fault, corroded, loose or damaged connector.
• C1889 — C1889 — Air Suspension LF Height Sensor Circuit Failure. A fault in the sensor and actuator circuits. The car is usually drivable while you plan the repair. Typical causes: open or shorted wiring in the circuit, control module driver fault, blown fuse feeding the circuit.
• C1890 — Air Suspension LF Height Sensor Circuit Open (C1890): a chassis (brakes/steering/suspension) fault affecting the sensor and actuator circuits. The car is usually drivable while you plan the repair. Most often caused by faulty sensor or actuator of the affected circuit, blown fuse feeding the circuit, poor ground connection.
• C1891 — C1891 — Air Suspension LF Height Sensor Circuit Short To Battery. A fault in the sensor and actuator circuits. The car is usually drivable while you plan the repair. Typical causes: control module driver fault, blown fuse feeding the circuit, poor ground connection.
• C1892 — OBD2 code C1892 flags a problem with the sensor and actuator circuits (air suspension LF height sensor circuit short to ground). The car is usually drivable while you plan the repair. Common culprits: open or shorted wiring in the circuit, control module driver fault, blown fuse feeding the circuit.
• C1893 — C1893 — Air Suspension LR Height Sensor Circuit Failure. A fault in the sensor and actuator circuits. The car is usually drivable while you plan the repair. Typical causes: corroded, loose or damaged connector, blown fuse feeding the circuit, faulty sensor or actuator of the affected circuit.
• C1894 — C1894 — Air Suspension LR Height Sensor Circuit Open. A fault in the sensor and actuator circuits. The car is usually drivable while you plan the repair. Typical causes: open or shorted wiring in the circuit, blown fuse feeding the circuit, faulty sensor or actuator of the affected circuit.
• C1895 — C1895 — Air Suspension LR Height Sensor Circuit Short To Battery. A fault in the sensor and actuator circuits. The car is usually drivable while you plan the repair. Typical causes: poor ground connection, control module driver fault, blown fuse feeding the circuit.
• C1896 — C1896 — Air Suspension LR Height Sensor Circuit Short To Ground. A fault in the sensor and actuator circuits. The car is usually drivable while you plan the repair. Typical causes: blown fuse feeding the circuit, open or shorted wiring in the circuit, control module driver fault.
• C1897 — C1897 — Steering VAPS II Circuit Loop Failure. A fault in the sensor and actuator circuits. The car is usually drivable while you plan the repair. Typical causes: open or shorted wiring in the circuit, corroded, loose or damaged connector, blown fuse feeding the circuit.
• C1898 — Steering VAPS II Circuit Loop Open (C1898): a chassis (brakes/steering/suspension) fault affecting the sensor and actuator circuits. The car is usually drivable while you plan the repair. Most often caused by poor ground connection, open or shorted wiring in the circuit, control module driver fault.