B1960

Code

LAND ROVER B — Body

Transmission of the seat, backrest tilts out of the high range

Brand: LAND ROVER

Type: B — Body

Views: UK: 23 EN: 32 RU: 14

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Page language: EN

Causes

Mechanical binding, broken gear, or obstruction in the backrest mechanism
Faulty backrest motor or gearbox (worn brushes, seized bearings)
Failed or out-of-spec position sensor (potentiometer or encoder) in the backrest
Damaged wiring harness, poor connector or pin corrosion to motor/sensor/module
Faulty seat control module or software/calibration error
Incorrect seat installation or damaged seat frame limiting travel

Symptoms

Seat backrest reclines past normal limit or stops outside normal range
Stored B1960 code (and possibly related seat position/airbag/comfort codes)
Seat adjustment operation erratic, slow, or non-functional in recline direction
Possible audible grinding, clicking, or motor noise during adjustment
Seat memory functions may fail or report error messages on dash/infotainment

What to check

Visual inspection of seat backrest area for obstructions, broken components, torn gear teeth or foreign objects
Inspect connectors at seat module, motor and position sensor for corrosion, bent pins or water ingress
Check for related stored codes in the passenger/seat modules and gateway/CAN messages
Verify fuses and relays that supply seat motors and control module
Try seat adjustment while observing behaviour, listen for abnormal noises
Confirm seat is correctly mounted and mechanical stops are intact

Signal parameters

Seat motor supply voltage: ~12 V battery (key ON) — should be present at motor + while operating
Position sensor (potentiometer) output: typically 0.5–4.5 V varying smoothly with backrest travel (model dependent)
Hall/encoder signal: digital pulse/AB signals or count values should change smoothly as backrest moves
Motor current draw: nominal a few amps while moving; large sudden increases or open circuit indicates fault
CAN/CVM messages: seat position and status values visible on diagnostic tool (compare with expected range)

Diagnostic algorithm

Read and record all stored codes from all modules; note freeze frame if available
Attempt to reproduce the fault: operate backrest through full travel while monitoring and listening for abnormal behavior
Perform visual/mechanical inspection: remove covers and check for broken gears, torn cables, jammed components or loose fasteners
Inspect connectors and wiring between backrest motor/sensor and seat control module. Wiggle test while operating to check for intermittent faults
With diagnostic tool, monitor live data: position sensor voltage/count, motor supply voltage, motor current, and seat module status. Look for abrupt out-of-range values when fault occurs
If position sensor is a potentiometer: measure resistance/voltage across its terminals through travel to confirm smooth change; if encoder/Hall sensors: verify clean digital signals
Check motor operation by applying 12 V directly (bench or very short test in-vehicle) to confirm motor/gearbox turns smoothly (observe current draw). Do not run for extended periods without load testing and safety precautions
If wiring/connectors and motor test good but sensor readings are invalid, replace the position sensor or seat motor assembly as per service information
If mechanical damage found, repair or replace damaged components (gearbox, drive cable, stops) and retest
After repairs, clear codes and perform seat module relearn/calibration procedure per manufacturer service instructions; re-scan for codes and verify correct travel and sensor values

Likely causes

Backrest position sensor failure or intermittent signal
Worn or damaged motor drive/gear causing position overshoot
Connector corrosion or damaged wiring in the seat harness
Seat calibration lost or module needs re-learn after repair
Mechanical deformation/foreign object preventing correct stop detection

Fault status

⚠️ Status

Seat backrest tilt reported beyond allowed high (reclined) range or sensor/motor signalling an out-of-range condition. Fault logged in seat control module.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 1.0 - 3.0 hours

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