Home / DTC / B10EB — Double locking motor for the driver's door double lock motor door for

B10EB — Double locking motor for the driver's door double lock motor door for

Detailed page for trouble code B10EB.

34,405codes
59brands
11,914generic
22,491specific
Reset
Code

B10EB

LAND ROVER B — Body

Double locking motor for the driver's door double lock motor door for

Brand: LAND ROVER
Type: B — Body
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Failed or seized double-lock motor/actuator in the driver's door
  • Damaged wiring or poor connector contact to the door lock motor
  • Blown fuse or faulty relay supplying the lock motor circuit
  • Door control module or body control module (BCM) software/hardware fault
  • Mechanical obstruction or binding in the door lock mechanism
  • CAN or data communication fault between modules

Symptoms

  • Driver's door double-lock (deadlock) function does not operate or is intermittent
  • Clicking, grinding or no sound from the door lock area when commanding double-lock
  • Vehicle reports door lock fault warnings or alarm/remote locking fails
  • Other doors lock/unlock normally while driver door fails
  • Possible battery drain if motor is stalled and draws high current

What to check

  • Scan vehicle for B10EB and any related body/CAN codes; record freeze frame data
  • Verify battery voltage is within reasonable range (approx. 11–14 V)
  • Operate double-lock/unlock while listening at the driver's door for motor noise
  • Inspect fuses and any relays for the door lock circuits
  • Visually inspect door harness, grommet and connector for damage, corrosion or pin push-out
  • Confirm other door actuators and remote key functions operate correctly

Signal parameters

  • Supply voltage to actuator: approx. battery voltage when motor is commanded (typically 11–14 V)
  • Motor current: brief run current then lower holding current; stalled motor may show high continuous current
  • Motor resistance: expected low single-digit ohms when measured across motor terminals (varies by model)
  • Control interface: switched power/ground from door control module or BCM; check for expected switching during command
  • Data: CAN/LIN messages between door module and BCM should be present and error-free

Diagnostic algorithm

  1. Retrieve and record DTC and related codes. Clear and see if code returns.
  2. Confirm symptom: try double-lock from switch, key fob and central module; note behaviour and any noise.
  3. Check fuses/relays for lock circuits; replace if blown and retest.
  4. Inspect the door harness and connector at the driver's door for corrosion, broken wires through the hinge grommet and secure connector pins.
  5. With connector connected, probe voltage at actuator harness while commanding lock: confirm proper supply switching and ground. If no switching, trace back to door control module/BCM.
  6. If supply is present but motor does not run, measure motor resistance with connector disconnected. Very high/open or shorted reading indicates motor failure.
  7. Perform a bench test on suspect actuator (apply appropriate battery voltage briefly) to confirm mechanical/electrical operation. Use care to avoid damage.
  8. Inspect mechanical lock mechanism for binding or obstruction; free linkages if needed and retest.
  9. If wiring and actuator check good, check module communication and outputs using a scope or scan tool; consider door control module/BCM replacement or reflash if module output missing or corrupted.
  10. After repair or replacement, clear codes and verify proper long-term operation (cycle locks several times and road test if required).

Likely causes

  • Corroded/loose connector at the door harness (common due to door flexing)
  • Motor windings open/shorted or worn brushes inside the actuator
  • Mechanical binding in lock linkage preventing motor movement
  • Intermittent power/ground to the actuator (broken wire in door loom)
  • Faulty door control module or BCM reporting incorrect actuator status

Fault status

⚠️ Status
Driver's door double-lock motor fault detected. Possible electrical open/short, mechanical seizure, wiring/connector fault or control module communication issue.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

Similar codes

277

Browse 277 LAND ROVER manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

LAND ROVER

Your experience will help others
+100 karma for a short comment :)
Send to email