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.

B2202 — B2202 — No Communication to VICS Module (No Fitting of VICS). A fault in the vehicle network (CAN bus) communication. Short, gentle driving to a shop is usually possible. Typical causes: damaged CAN bus wiring or short to power/ground, corroded connectors, especially in wet areas, aftermarket equipment interfering with the bus.
B2203 — CD-ROM Error (B2203): a body electrical fault affecting the body electrical system. The car is usually drivable while you plan the repair. Most often caused by body control module (BCM) fault, blown fuse or failed relay, damaged wiring in door jambs or wet areas.
B2204 — GPS Antenna Connection Open or Short (B2204): a body electrical fault affecting the body electrical system. The car is usually drivable while you plan the repair. Most often caused by damaged wiring in door jambs or wet areas, blown fuse or failed relay, corroded or loose connectors.
B2205 — B2205 — GPS Receiver Error. A fault in the body electrical system. The car is usually drivable while you plan the repair. Typical causes: faulty switch, motor or actuator of the affected system, corroded or loose connectors, body control module (BCM) fault.
B2206 — B2206 — Gyroscope Error. A fault in the body electrical system. The car is usually drivable while you plan the repair. Typical causes: faulty switch, motor or actuator of the affected system, body control module (BCM) fault, corroded or loose connectors.
B2207 — B2207 — ECU ROM Checksum Error. A fault in the body electrical system. The car is usually drivable while you plan the repair. Typical causes: faulty switch, motor or actuator of the affected system, corroded or loose connectors, body control module (BCM) fault.
B2208 — B2208 — Communication Link to Display and Switch Module Error. A fault in the body electrical system. The car is usually drivable while you plan the repair. Typical causes: corroded or loose connectors, damaged wiring in door jambs or wet areas, blown fuse or failed relay.
B2209 — OBD2 code B2209 flags a problem with the body electrical system (interior lamp override switch open circuit). The car is usually drivable while you plan the repair. Common culprits: corroded or loose connectors, faulty switch, motor or actuator of the affected system, body control module (BCM) fault.
B2210 — B2210 — Interior Lamp Override Switch Short to Ground. A fault in the body electrical system. The car is usually drivable while you plan the repair. Typical causes: faulty switch, motor or actuator of the affected system, body control module (BCM) fault, damaged wiring in door jambs or wet areas.
B2211 — Low Coolant Lamp Output Circuit Short to Battery (B2211): a body electrical fault affecting the engine cooling and temperature control. Short, gentle driving to a shop is usually possible. Most often caused by water pump or radiator issues, wiring faults in the sensor circuit, low coolant level or air in the system.
B2214 — OBD2 code B2214 flags a problem with the body electrical system (window passenger front up switch short to battery). The car is usually drivable while you plan the repair. Common culprits: corroded or loose connectors, faulty switch, motor or actuator of the affected system, blown fuse or failed relay.
B2215 — B2215 — Window Passenger Front Down Switch Short to Battery. A fault in the body electrical system. The car is usually drivable while you plan the repair. Typical causes: corroded or loose connectors, damaged wiring in door jambs or wet areas, faulty switch, motor or actuator of the affected system.
B2219 — B2219 — Window Driver Front Current Feedback Exceeded. A fault in the body electrical system. The car is usually drivable while you plan the repair. Typical causes: corroded or loose connectors, body control module (BCM) fault, damaged wiring in door jambs or wet areas.
B2220 — Window Driver Rear Current Feedback Exceeded (B2220): a body electrical fault affecting the body electrical system. The car is usually drivable while you plan the repair. Most often caused by blown fuse or failed relay, faulty switch, motor or actuator of the affected system, damaged wiring in door jambs or wet areas.
B2221 — OBD2 code B2221 flags a problem with the body electrical system (window passenger front current feedback exceeded). The car is usually drivable while you plan the repair. Common culprits: damaged wiring in door jambs or wet areas, blown fuse or failed relay, body control module (BCM) fault.
B2222 — B2222 — Window Passenger Rear Current Feedback Exceeded. A fault in the body electrical system. The car is usually drivable while you plan the repair. Typical causes: body control module (BCM) fault, faulty switch, motor or actuator of the affected system, corroded or loose connectors.
B2223 — Mirror Driver Drive Circuit Failure (B2223): a body electrical fault affecting the body electrical system. The car is usually drivable while you plan the repair. Most often caused by blown fuse or failed relay, damaged wiring in door jambs or wet areas, corroded or loose connectors.
B2224 — Mirror Passenger Drive Circuit Failure (B2224): a body electrical fault affecting the body electrical system. The car is usually drivable while you plan the repair. Most often caused by blown fuse or failed relay, damaged wiring in door jambs or wet areas, body control module (BCM) fault.
B2225 — OBD2 code B2225 flags a problem with the airbag / restraint system (SRS) (front crash sensor mount fault). Short, gentle driving to a shop is usually possible. Common culprits: faulty impact or occupancy sensor, damaged wiring under seats or in the steering column, SRS control module fault or stored crash data.
B2226 — OBD2 code B2226 flags a problem with the airbag / restraint system (SRS) (front crash sensor internal fault). Short, gentle driving to a shop is usually possible. Common culprits: depleted backup battery or low system voltage, SRS control module fault or stored crash data, faulty impact or occupancy sensor.
B2227 — Front Crash Sensor Driver Communications Fault (B2227): a body electrical fault affecting the airbag / restraint system (SRS). Short, gentle driving to a shop is usually possible. Most often caused by SRS control module fault or stored crash data, damaged wiring under seats or in the steering column, failed clockspring (driver airbag circuit).
B2228 — Air Bag Driver Circuit Short to Ground - Loop #2 (B2228): a body electrical fault affecting the airbag / restraint system (SRS). Short, gentle driving to a shop is usually possible. Most often caused by SRS control module fault or stored crash data, damaged wiring under seats or in the steering column, depleted backup battery or low system voltage.
B2229 — OBD2 code B2229 flags a problem with the airbag / restraint system (SRS) (air bag passenger circuit short to ground - loop #2). Short, gentle driving to a shop is usually possible. Common culprits: damaged wiring under seats or in the steering column, SRS control module fault or stored crash data, depleted backup battery or low system voltage.
B2230 — Air Bag Driver Circuit Short to Battery - Loop #2 (B2230): a body electrical fault affecting the airbag / restraint system (SRS). Short, gentle driving to a shop is usually possible. Most often caused by SRS control module fault or stored crash data, damaged wiring under seats or in the steering column, faulty impact or occupancy sensor.