What does it mean?
B2365 is a Body (airbags, seat belts, body electronics) fault code. It indicates: Driver Seat Rear Vertical Position Sensor Circuit .
Symptoms
- The power sliding door opens or closes by itself, or starts moving as soon as the ignition is switched on
- The B-pillar switch has no effect while interior and key fob commands still work
- Power sliding door operation is disabled entirely and the door must be moved by hand
- A warning chime or a door ajar indication that will not go out
- The fault shows up after rain or a trip through a car wash
Likely causes
- Switch signal wire chafed against the B-pillar sheet metal or the striker area
- Water entering the exterior switch through a failed seal and bridging the contacts to ground
- Switch contacts stuck or welded closed internally
- Loom crushed where it runs behind the B-pillar trim or under the sill plate
- Corroded connector at the sliding door module with a conductive bridge between the signal and ground pins
- Wire pinched under a bracket or bolt during previous trim removal
- Failed input stage inside the power sliding door control module
How to fix it
- Read the switch state in live data with nobody touching the switch; a permanently active reading confirms a grounded input
- Unplug the B-pillar switch and read the state again, if it returns to normal the switch or its seal is at fault
- With the switch disconnected, measure resistance from the signal wire to ground to prove whether the short is in the harness
- Inspect the loom where it crosses the B-pillar and the sill for chafe marks and pinch points
- Open and dry the switch connector and check for corrosion tracking between adjacent pins
- Repair the damaged wiring with a properly sealed joint and reroute it away from sharp edges
- If the input remains grounded with both the switch and the harness disconnected at the module, the module itself is faulty