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Home / DTC / B1B97 — seat switch to the back of Slide of seat

B1B97 — seat switch to the back of Slide of seat

Detailed page for trouble code B1B97.

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Code

B1B97

LAND ROVER B — Body

seat switch to the back of Slide of seat

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

Causes

  • Damaged or disconnected slide-back switch
  • Open, shorted or corroded wiring/connectors in the switch circuit
  • Faulty seat control module (BCM/seat module) input circuit
  • Blown fuse or loss of power/ground to seat module or switch
  • Mechanical binding or damage to seat slide mechanism preventing proper switch operation
  • Intermittent contact due to water ingress or connector corrosion

Symptoms

  • Seat will not move or will not move to the rear position
  • Seat memory or position functions not working correctly
  • DTC B1B97 stored and may illuminate a warning/message in the instrument cluster
  • Intermittent or inconsistent rear slide detection
  • Possible loss of linked features (mirrors/memory) related to seat position

What to check

  • Read and record all seat/body codes with a compatible scan tool (JLR IDS or equivalent).
  • Check for related codes (airbag/seat module/power supply) and note freeze frame data.
  • Perform a visual inspection of the seat underside: connectors, wiring along rails, and switch location.
  • Verify fuses and power/ground to the seat control module.
  • Operate the seat slide while monitoring live data for the slide-back switch/status.
  • Check for mechanical obstructions or binding in the seat tracks.

Signal parameters

  • Supply voltage to switch: approx. battery voltage (10–14 V) when ignition ON
  • Switch output: open/closed contact or pulsed signal depending on model; closed = continuity to ground or to module input
  • Expected resistance: near 0 Ω when closed, open circuit (OL) when open (model-dependent)
  • CAN/serial: seat position data message should update when seat is moved (use IDS to view)
  • No short to ground or battery on the switch circuit (measure with multimeter)

Diagnostic algorithm

  1. Read and record DTCs and freeze-frame data; note whether the fault is current or historic.
  2. Attempt to reproduce the fault: operate the seat through full travel and observe live data for the slide-back switch input.
  3. Visually inspect connectors at the switch and seat control module for corrosion, bent pins, or loose terminals. Wiggle harness while observing live data to check for intermittent changes.
  4. With ignition OFF and battery isolated per manufacturer SRS safety procedure, disconnect the seat connector and inspect pins. Reconnect and re-check.
  5. Check fuse(s) and measure battery voltage at the switch supply pin with ignition ON. Verify good ground at the module/seat. Repair any power/ground faults.
  6. With a multimeter, check continuity/resistance of the slide-back switch while operating it (bench test if removed). Expect near 0 Ω when closed; OL when open (refer to model service information for exact values).
  7. If harness damage is suspected, perform a pin-to-pin continuity check from the switch to the seat module connector, paying attention to wiring through the seat rail and hinge area.
  8. If the switch and wiring are good, check the seat control module inputs with a diagnostic tool capable of module input tests. If module input circuit is faulty, consider module replacement or repair.
  9. After repairs, clear codes and cycle the seat through full travel multiple times to confirm the fault does not return. Verify seat memory and related functions.
  10. If intermittent or unresolved, consult manufacturer service bulletins and consider software reflash/update for the seat module.

Likely causes

  • Connector corrosion or poor pin contact at the seat switch
  • Broken/shorted wire in the harness where it passes through the seat rail
  • Failed slide position switch (contacts worn or stuck)
  • Seat module input failure or missing ground

Fault status

⚠️ Status
Seat rear slide switch circuit fault detected — stored (may be active or intermittent).
🔴 Repair difficulty: Hard
⏱️ Diagnostic time: 1.0 - 2.5 hours

Similar codes

B1B96 B1B98 B1B99 B1B90
320

Browse 320 LAND ROVER manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

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