B2209 on 2021-2024 Jeep Grand Wagoneer — Interior Lamp Override Switch Circuit (manufacturer-specific)
1 vehicles · 1 makes
Most Reported On
B2209 is an OBD-II diagnostic trouble code meaning “Interior Lamp Override Switch Circuit (manufacturer-specific).” B2209 is a manufacturer-specific body code, so its exact meaning varies by automaker. On many Ford/GM applications it indicates a fault (typically an open or out-of-range condition) in the interior lamp / dome lamp override switch circuit, which the body control module monitors. On some Acura/Honda vehicles the same code points to an internal control-unit (e.g. AcuraLink/telematics) error. It generally signals an electrical problem in a body comfort/convenience circuit rather than a drivability issue. This code is most commonly reported on 2021-2024 Jeep Grand Wagoneer.
Common Causes
Diagnostic Tools
B2209 does not use the standard P/B/C/U prefix. It may be a manufacturer-specific code, so verify that a scanner supports your exact year, model and module before buying.
FAQ
What does B2209 mean?
B2209 stands for "Interior Lamp Override Switch Circuit (manufacturer-specific)." B2209 is a manufacturer-specific body code, so its exact meaning varies by automaker. On many Ford/GM applications it indicates a fault (typically an open or out-of-range condition) in the interior lamp / dome lamp override switch circuit, which the body control module monitors. On some Acura/Honda vehicles the same code points to an internal control-unit (e.g. AcuraLink/telematics) error. It generally signals an electrical problem in a body comfort/convenience circuit rather than a drivability issue.
What are the most common causes of B2209?
The most common causes of B2209 are: Faulty interior lamp override switch, Damaged or chafed wiring in the switch circuit, Corroded or loose connector, Blown fuse for interior lighting, Body control module fault, Internal control unit error (some makes, e.g. Acura telematics). The specific cause varies by vehicle.
How much does it cost to fix B2209?
Repair costs vary widely depending on the root cause and vehicle.
Which vehicles are affected by B2209?
Au7o has documented B2209 across 1 vehicle models from 1 manufacturers: Jeep.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.