B0510Driver Door Open Switch
- Generic OBD-II code · Body
- How the car detects it
- B0510 is missing from the publicly available J2012 lists, and no manufacturer defines it in accessible documents. GM does list B0510 among the circuit DTC keywords of bulletin PIP5094 (2014 and earlier cars and light trucks), but without a descriptor. The title points to the switch that tells the body electronics the driver door is being opened. In GM's 2011 Saab 9-5 the comparable input is the driver exterior handle switch, coded B3849 02: if the keyless entry module sees that line grounded or closed for over 180 s, it ignores the handle. Toyota's EP2372055A1 shows why such inputs matter: a door courtesy switch that fails to report an opening can let auto-lock trap the key inside. The passenger door counterpart is B0520.
- What you may notice
- Interior light stays off when the driver door is opened
- Keyless opening at the driver handle does not respond
- Door-open message or chime missing or shown permanently
- Likely causes
- LikelyDriver door switch worn, dirty or stuck in one position
- PossibleWire broken or chafed in the driver door hinge passage
- PossibleMoisture or corrosion at the switch connector
- RareInput stage of the body or keyless entry module faulty
- Repair
- Easy · Often possible to do yourself.Typical cost: €20 – €200
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.