Code
B2593
Other
B — Body
Power Sliding Door Opened During Module Close Command
AI status
Completed
Completed
100%
Causes
- Faulty door position (open/closed) switch or sensor
- Obstruction in door track or mechanical binding
- Weak or stalled door drive motor or gearbox
- Intermittent or damaged wiring/connector between door sensors and module
- Faulty power sliding door control module or software error
- Incorrect calibration or learning state after service or battery disconnect
Symptoms
- Sliding door fails to fully close or reopens immediately during close command
- Warning message or chime indicating door is open
- Door close operation stops, reverses, or cycles
- Illumination of related dash or body control indicator
- Inconsistent or intermittent door behavior
What to check
- Visual inspection of door track, rollers, and latch for obstructions or damage
- Check door position switch/sensor operation with manual actuation
- Scan for stored DTCs and live data from the sliding door module
- Inspect wiring and connectors at door hinge and module for corrosion, breaks, or pin damage
- Monitor motor current during close cycle (inrush and running current)
- Confirm module software level and any outstanding technical service bulletins (TSBs)
Signal parameters
- Door position switch state (open = 1 / closed = 0) or percent door travel
- Power sliding door module close command (binary/on-off)
- Motor current (amps) or motor driver load
- Obstruction/force sensor or torque feedback if present
- CAN or LIN messages for door status and module acknowledgements
- Latch status (engaged/disengaged)
Diagnostic algorithm
- Retrieve all related DTCs and freeze frame data. Note conditions when B2593 set.
- With ignition on, operate the sliding door from the module (scan tool) and observe live data: close command, door position sensor, motor current, latch status and CAN messages.
- Inspect door path for physical obstructions, damaged rollers, or binding. Manually move door to check for smooth travel and full close without resistance.
- Test the door position switch/sensor: actuate by hand and watch live data for consistent state change. Replace if intermittent or out of spec.
- Inspect wiring harness at the door hinge and module connector for chafing, broken wires, or corrosion. Wiggle harness while commanding close to reproduce fault.
- Measure motor current during a commanded close. High/stall current indicates mechanical bind or motor/gearbox problem; no current may indicate power or driver fault.
- Check latch and striker for proper alignment and operation. Adjust or replace if latch does not indicate closed when door is physically shut.
- If wiring, sensors, motor and latch are good, consider module reset/learning procedure per manufacturer. Reprogram or replace module only after verifying external components.
- Clear codes and perform multiple open/close cycles and a road or soak test to confirm repair. Re-scan for return of B2593.
Likely causes
- Faulty or misadjusted door position sensor/switch
- Mechanical obstruction or binding preventing full travel
- High current draw or intermittent motor operation (stalls) during close
- Wiring harness damage at hinge/door harness causing intermittent open signal
- Module not completing close routine due to failed limit switch input
Fault status
Status
Power sliding door reported open while module commanded door to close. Check door sensor, motor, latch, wiring and module.
Repair difficulty: Medium
Diagnostic time: 1-3 hours
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