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

• C1450 — Traction Control Motor Circuit Failure (C1450): a chassis (brakes/steering/suspension) fault affecting the ABS / stability control. Short, gentle driving to a shop is usually possible. Most often caused by faulty ABS module or pump motor, damaged tone (reluctor) ring on the hub, damaged sensor wiring or corroded connector.
• C1451 — Traction Control Motor Circuit Open (C1451): a chassis (brakes/steering/suspension) fault affecting the ABS / stability control. Short, gentle driving to a shop is usually possible. Most often caused by blown fuse or low voltage to the ABS module, damaged tone (reluctor) ring on the hub, failed wheel speed sensor.
• C1452 — C1452 — Traction Control Motor Circuit Short to Battery. A fault in the ABS / stability control. Short, gentle driving to a shop is usually possible. Typical causes: damaged tone (reluctor) ring on the hub, faulty ABS module or pump motor, damaged sensor wiring or corroded connector.
• C1453 — Traction Control Motor Circuit Short to Ground (C1453): a chassis (brakes/steering/suspension) fault affecting the ABS / stability control. Short, gentle driving to a shop is usually possible. Most often caused by damaged sensor wiring or corroded connector, damaged tone (reluctor) ring on the hub, blown fuse or low voltage to the ABS module.
• C1454 — OBD2 code C1454 flags a problem with the sensor and actuator circuits (front lateral accelerometer circuit failure). 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, blown fuse feeding the circuit.
• C1455 — C1455 — Accelerometer Front Circuit Failure. 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, control module driver fault, open or shorted wiring in the circuit.
• C1456 — C1456 — Accelerometer Front Circuit Is Not Sensed. 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, faulty sensor or actuator of the affected circuit, control module driver fault.
• C1457 — C1457 — Accelerometer Front Circuit Short To Ground. A fault in the sensor and actuator circuits. The car is usually drivable while you plan the repair. Typical causes: poor ground connection, open or shorted wiring in the circuit, faulty sensor or actuator of the affected circuit.
• C1458 — OBD2 code C1458 flags a problem with the sensor and actuator circuits (accelerometer front circuit short to battery). The car is usually drivable while you plan the repair. Common culprits: control module driver fault, open or shorted wiring in the circuit, faulty sensor or actuator of the affected circuit.
• C1459 — Adaptive Mode Switch Circuit Failure (C1459): 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, poor ground connection, corroded, loose or damaged connector.
• C1460 — C1460 — Vehicle Accelerometer Power 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, poor ground connection.
• C1461 — Vehicle Accelerometer Power Circuit Short to Battery (C1461): 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, open or shorted wiring in the circuit, control module driver fault.
• C1462 — OBD2 code C1462 flags a problem with the sensor and actuator circuits (left front vertical accelerometer circuit failure). The car is usually drivable while you plan the repair. Common culprits: faulty sensor or actuator of the affected circuit, corroded, loose or damaged connector, control module driver fault.
• C1463 — OBD2 code C1463 flags a problem with the sensor and actuator circuits (right front vertical accelerometer circuit failure). The car is usually drivable while you plan the repair. Common culprits: control module driver fault, open or shorted wiring in the circuit, blown fuse feeding the circuit.
• C1464 — C1464 — Pressure Transducer Redundant / Secondary Signal Faulted. 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, faulty sensor or actuator of the affected circuit, control module driver fault.
• C1465 — C1465 — Damper High Side Front Circuit Short To Battery. 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, blown fuse feeding the circuit, open or shorted wiring in the circuit.
• C1466 — Damper Circuit Failure (C1466): 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 corroded, loose or damaged connector, control module driver fault, poor ground connection.
• C1467 — OBD2 code C1467 flags a problem with the sensor and actuator circuits (damper high side rear circuit short to battery). The car is usually drivable while you plan the repair. Common culprits: open or shorted wiring in the circuit, blown fuse feeding the circuit, corroded, loose or damaged connector.
• C1468 — C1468 — Damper Low Side Front Circuit Failure. 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, blown fuse feeding the circuit, open or shorted wiring in the circuit.
• C1469 — C1469 — Damper Low Side Rear 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, corroded, loose or damaged connector, poor ground connection.
• C1495 — Traction Control Motor Potentiometer Circuit Failure (C1495): a chassis (brakes/steering/suspension) fault affecting the ABS / stability control. Short, gentle driving to a shop is usually possible. Most often caused by blown fuse or low voltage to the ABS module, failed wheel speed sensor, faulty ABS module or pump motor.
• C1496 — C1496 — Traction Control Motor Potentiometer Circuit Open. A fault in the ABS / stability control. Short, gentle driving to a shop is usually possible. Typical causes: failed wheel speed sensor, damaged tone (reluctor) ring on the hub, damaged sensor wiring or corroded connector.
• C1497 — OBD2 code C1497 flags a problem with the ABS / stability control (traction control motor potentiometer circuit short to battery). Short, gentle driving to a shop is usually possible. Common culprits: damaged sensor wiring or corroded connector, blown fuse or low voltage to the ABS module, failed wheel speed sensor.
• C1498 — OBD2 code C1498 flags a problem with the ABS / stability control (traction control motor potentiometer circuit short to ground). Short, gentle driving to a shop is usually possible. Common culprits: failed wheel speed sensor, blown fuse or low voltage to the ABS module, damaged sensor wiring or corroded connector.