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Home / DTC / B2215 — Front passenger door window switch - circuit battery short

B2215 — Front passenger door window switch - circuit battery short

Detailed page for trouble code B2215.

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Code

B2215

LAND ROVER B — Body

Front passenger door window switch - circuit battery short

Brand: LAND ROVER
Type: B — Body
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Page language: EN

Causes

  • Damaged wiring harness (chafing, pinched) causing power feed to be tied to the switch circuit
  • Failed front passenger door window switch with internal short to battery
  • Corroded or water-damaged connector at the door switch or door harness
  • Aftermarket accessory or poor previous repair introducing a direct battery feed into the circuit
  • Faulty body control module (BCM) or door control module reporting incorrect circuit state
  • Blown or incorrect fuse/relay allowing improper voltage on the circuit

Symptoms

  • Front passenger window inoperative or operates only in one direction
  • One or more blown fuses related to power windows
  • DTC stored in the body/BCM: B2215 (and possibly related door/window B-codes)
  • Intermittent window operation or operation without pressing the switch
  • Possible battery drain when vehicle is off if short is permanent

What to check

  • Read and record all stored DTCs and freeze frame data with a compatible diagnostic tool (manufacturer scan tool recommended)
  • Visual inspection of front passenger door switch, door harness, and junctions for damage, corrosion, or water ingress
  • Inspect fuses and relays for the power window circuits and note any blown items
  • Back-probe the switch connector and wiggle the harness while operating switch to reproduce fault
  • Compare voltages at the switch connector to expected values (see signal_params)
  • Disconnect the passenger door switch connector to see if the DTC clears or behavior changes (helps isolate between switch and wiring/module)

Signal parameters

  • Battery voltage on supply pin: ~12.0–14.5 V with ignition ON (may be constant battery feed on some pins)
  • Switch output pin (inactive): ~0 V (or near ground) when not activating; when activated should switch toward battery voltage or ground depending on circuit design
  • Resistance across switch contacts when operated: low ohms (typically
  • Open-circuit resistance (switch off): high/infinite ohms
  • If shorted to battery, circuit shows battery voltage at switch control pin even when switch not pressed

Diagnostic algorithm

  1. Connect a Land Rover-compatible diagnostic tool, read and save all codes and live data; note any related door/window B-codes
  2. Perform visual inspection of passenger door switch, connector, and harness through the door jamb; look for pinched wires, chafing, or water damage
  3. Check relevant fuses/relays and replace any blown fuses; note if fuse blows again when testing
  4. With ignition ON, back-probe the switch connector: verify supply, ground, and signal voltages per signal_params
  5. If battery voltage is present on the switch signal pin with switch disconnected and not pressed, isolate wiring between switch connector and module (short to battery in harness)
  6. Disconnect the passenger door switch connector. If DTC clears or fuse stops blowing, suspect switch fault; bench-test or replace the switch
  7. If voltage persists with switch disconnected, trace harness toward door module/BCM. Open door sill covers and inspect splice points, connectors, and body grommets for chafing or pin-to-pin contact
  8. Perform a continuity and short-to-battery test: with battery connected and ignition off, measure current draw or use a fused jumper to locate the short (take care to protect circuits; remove fuses to isolate subcircuits before current testing)
  9. Repair or replace damaged wiring, connector, or switch as required. If wiring and switch OK, check/replace door control module/BCM only after confirming harness and switch integrity
  10. Clear codes, cycle ignition and operate window to verify repair; road test or repeat operations to confirm no recurrence

Likely causes

  • Shorted front passenger door window switch (internal)
  • Wiring short to constant battery feed in passenger door harness (pinch or chafe)
  • Water ingress/corrosion at connector in door jamb or switch
  • Incorrect/modified aftermarket wiring tied to window circuit

Fault status

⚠️ Status
B2215 — Front passenger door window switch circuit shorted to battery. Stored by body/door module; window function may be affected. Inspect switch, connector, and harness for short to constant battery.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0 - 2.5 hours

Similar codes

B2214 B2220 B2261 B2280
320

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