B1952

Code

LAND ROVER B — Body

Rear feedback potentiometer of the high seat

Brand: LAND ROVER

Type: B — Body

Views: UK: 11 EN: 21 RU: 12

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Page language: EN

Causes

Damaged or failed seat feedback potentiometer (position sensor)
Broken, corroded or disconnected connector or wiring harness to the potentiometer
Water ingress or contamination of the seat sensor or connector
Mechanical binding or damage in the seat track or linkage affecting the sensor
Faulty seat control module or related ECU software/calibration

Symptoms

Seat position not stored or recalled correctly
Seat does not move to commanded position or moves erratically
Driver information or warning message related to seat or memory functions
DTC B1952 stored and possibly other seat/comfort system codes
Intermittent operation of high seat adjustment or loss of precision in travel

What to check

Read and record freeze frame and all stored DTCs with a diagnostic scanner
Visual inspection of seat area, connectors and wiring for damage, corrosion or water
Wiggle test harness and connector while observing scanner live data for the potentiometer
Check for physical binding or obstruction in seat tracks and linkages
Verify relevant fuses and seat module power/ground circuits

Signal parameters

Reference supply typically 5 V (verify with vehicle wiring diagram) present at the sensor connector
Sensor output voltage should vary smoothly between near 0 V and near reference (e.g., ~0–5 V) as the seat moves through its full travel
No sudden jumps, dropouts or open-circuit indicated by infinite/very high resistance
Continuity to ground and supply with low resistance on the corresponding pins
Live-data position value should change linearly with seat movement (no jitter)

Diagnostic algorithm

Connect a capable diagnostic scanner, read all DTCs and freeze-frame data; note related codes.
Reproduce the fault: operate the high seat while monitoring the seat feedback potentiometer live data. Note any intermittent or out-of-range values.
Visually inspect the potentiometer, connector and wiring along the seat track for damage, corrosion or water ingress; repair obvious issues.
Perform a wiggle test on the wiring and connector while watching live data to locate intermittent wiring faults.
With ignition on, verify reference voltage, sensor ground and sensor output at the connector using a multimeter. Compare readings to expected smooth change during travel.
If open/short indicated, isolate and repair wiring. If output voltage is non-linear or fixed, bench-test or replace the potentiometer unit.
Inspect mechanical seat travel and linkage for binding; repair or lubricate as required and confirm sensor range.
After repairs or component replacement, clear DTCs and perform seat calibration/initialization if required by the manufacturer.
Re-test for proper operation and verify DTC does not return. If fault persists, investigate seat control module or wiring further and consult wiring diagrams/service information.

Likely causes

Worn potentiometer contacts causing intermittent/open/short signal
Connector pins corroded or pushed out
Chafed wiring at the seat hinge or track (common under seats)
Seat actuator binding causing sensor to sit outside expected range
Recent seat removal/installation not reconnected or not calibrated

Fault status

⚠️ Status

Rear feedback potentiometer (high seat) — circuit/sensor fault detected (open, short, intermittent or out-of-range signal).

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 0.5 - 2.0 hours

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