B2306

Code

LAND ROVER B — Body

Headrest support motor of the seat stuck

Brand: LAND ROVER

Type: B — Body

Views: UK: 21 EN: 26 RU: 20

AI status

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Page language: EN

Causes

Mechanical obstruction or seized linkage in the headrest mechanism
Worn or failed headrest support motor or internal gearbox
Blown fuse or faulty relay supplying the motor
Poor power supply or bad ground at the motor connector
Damaged wiring or corroded/loose connector
Faulty seat control module or software error

Symptoms

Headrest will not extend/retract or stops part way
No movement when headrest control is operated
Audible grinding, clicking or high-load noise from the headrest assembly
Diagnostic trouble code B2306 stored in seat/BCM module
Other seat position/memory faults or limited seat functionality

What to check

Scan vehicle with a diagnostic tool; read and record all stored seat/body codes
Attempt to operate headrest while monitoring motor voltage and current
Visually inspect headrest area for obstructions or foreign objects
Check relevant fuses and relays for continuity and proper operation
Inspect wiring harness and connector for corrosion, damage, or loose pins
Listen for motor noise; feel for movement while a second person operates the control

Signal parameters

Supply voltage at motor connector: approx. 11–14 V when operating (verify to manufacturer spec)
Motor winding resistance (typical range): low ohms (often 1–10 Ω) — compare to spec
Motor current draw: should be within manufacturer limits; abnormally high current indicates stall or mechanical binding
Control module command signal: switched 12 V or PWM output (varies by model) — verify presence when operating
Position sensor/feedback (if equipped): 0–5 V analog or CAN/serial position message — verify change during operation

Diagnostic algorithm

Safety: Park vehicle, ignition off. If working near seat airbags or pretensioners, follow manufacturer safety procedures (battery disconnect if required).
Scan: Use a compatible scan tool to read stored codes, freeze frame data and attempt an actuator test for the headrest motor if supported.
Visual & mechanical inspection: Check headrest for visible obstructions, damaged trim, or bent guides. Manually check for free movement (do not force trim or wiring).
Electrical supply: With ignition/accessory on, measure voltage at the motor connector while an assistant operates the headrest control. Verify good battery voltage and solid ground.
Current draw test: Measure motor current during operation. Excessive current indicates mechanical binding or a seized motor; no current suggests open circuit or control fault.
Connector & wiring: Inspect and wiggle-test connectors and harness for intermittent faults. Check continuity to the seat control module and to ground/fuse.
Fuse/relay: Check continuity and operation of relevant fuses and relays in the seat/BCM circuit.
Motor bench test: If wiring and supply are good, remove motor/actuator and bench-test directly with controlled 12 V to confirm mechanical operation and current profile.
Module/software: If motor and wiring are good, investigate seat control module outputs, update software/calibrate as per manufacturer procedures, and replace module if output drivers are defective.
Repair & verify: Repair or replace the faulty component(s), clear codes, and verify full operation through several cycles and re-scan for new codes.

Likely causes

Mechanical binding (debris, foreign object, bent linkage)
Motor or gear wear causing the motor to stall
Intermittent power/ground due to connector corrosion or broken wire
Fuse or relay failure
Seat module output driver fault

Fault status

⚠️ Status

Stored fault: headrest support motor stuck. Possible mechanical obstruction, motor stall, wiring, fuse/relay, or seat control module issue. Inspect and test motor, power, ground and seat module.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 1.0-2.0 hours

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