B0245Driver Window Switch Circuit
- Generic OBD-II code · Body
- How the car detects it
- B0245 is unknown to every publicly available J2012 source and undocumented by carmakers, so nothing public backs it; driver window faults have the code B0500. The driver's door usually holds the master switch block, which commands its own window and, by signal lines or a bus, the other doors. Honda's patent US7145299B2 replaces two heavy wires per door with a single line that the master ties to battery for up, to ground for down and leaves floating for stop, so contact wear and relay surges no longer stress the switch. A circuit code here means the module sees a switch state that cannot be right, such as a contact held closed by corrosion or a broken line. Windows that can close on their own must reverse before pressing 100 N under FMVSS 118.
- What you may notice
- Driver's window or other windows do not respond to the master switch
- A window moves on its own or the one-touch function misbehaves
- Likely causes
- LikelyMaster switch contacts corroded or sticking, often after drinks or rain got into the door panel
- PossibleWires broken in the rubber boot between body and driver's door
- RarePlug of the switch block loose or with pushed-back pins
- Repair
- Easy · Often possible to do yourself.Typical cost: €30 – €250
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.