Home / DTC / B2369 — Short bell tower exit request circuit to the ground Disconnection of the power from the left seat heater Invalid temperature adjustment point of the left seat heater

B2369 — Short bell tower exit request circuit to the ground Disconnection of the power from the left seat heater Invalid temperature adjustment point of the left seat heater

Detailed page for trouble code B2369.

33,011codes
59brands
10,550generic
22,461specific
Reset
Code

B2369

LAND ROVER B — Body

Short bell tower exit request circuit to the ground Disconnection of the power from the left seat heater Invalid temperature adjustment point of the left seat heater

Brand: LAND ROVER
Type: B — Body
Views: UK: 3 EN: 8 RU: 7
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Short to ground on the left seat heater control or request circuit
  • Open or disconnected power feed to left seat heater (fuse, relay, harness)
  • Faulty left seat heater element (open/short)
  • Faulty seat temperature sensor/thermistor or its connector
  • Faulty seat heater switch or seat module/control unit
  • Corroded/damaged connector or pin (water ingress or mechanical damage)

Symptoms

  • Left seat heater not working or intermittent operation
  • Heater indicator lamp (dash or switch) flashes or does not illuminate
  • Stored B2369 (left seat heater circuit fault) in diagnostic trouble codes
  • Erratic or impossible seat temperature readings on scan tool
  • Possible burning smell or visible damage near seat wiring (rare)

What to check

  • Scan vehicle modules and read live data for left seat heater status and temperature sensor values
  • Verify relevant fuses and relays for seat heaters are present and intact
  • Visually inspect wiring and connectors under the left seat for damage, corrosion, or water
  • Check for continuity and resistance of the heater element and temperature sensor with seat removed if needed
  • Perform wiggle test on harness/connectors while observing live data for changes
  • Measure supply voltage to seat heater control connector with heater switch ON

Signal parameters

  • Supply voltage to heater fuse/connector: approx. 11–14 V with ignition ON and heater request active
  • Expected heater element resistance (typical range): ~0.5–15 Ω depending on design — open circuit or very low near 0 Ω indicates open or direct short respectively
  • Seat temperature sensor typical range: several kΩ (NTC) that changes with temperature — consult vehicle-specific values; open/OL or near 0 Ω indicates fault
  • Control signal type: many systems use a switched 12 V feed and PWM grounding from seat module; PWM frequency is commonly low (1–20 Hz) — confirm with OEM data when required

Diagnostic algorithm

  1. Retrieve freeze frame and full DTC list from all modules; record live data for left seat heater and temperature sensor.
  2. Inspect fuses and relays related to seat heating; replace any blown fuses only after determining reason.
  3. With battery connected, turn ignition to ON and operate left seat heater. Measure supply voltage at the seat heater power feed and at the control/ground pin on the seat module connector.
  4. Disconnect the seat connector and measure resistance of the heater element between its supply and return terminals. Compare to expected range. Check temperature sensor resistance against expected values or published chart.
  5. Check for continuity to chassis/ground from heater element wiring to detect an unintended short. Check for short to ground on the control/request circuit using an ohmmeter or controlled fused power source.
  6. Perform a wiggle/strain test on wiring while observing live data — watch for intermittent faults indicating broken conductors.
  7. Inspect and clean connectors; repair any damaged pins or wires. Repair harness with proper splices or replace affected wiring loom sections if damaged.
  8. If wiring and elements are good, bench-test or substitute the seat control/module/switch (if available) per OEM procedure; replace module only if supported by test results.
  9. After repair, clear codes and verify proper heater operation and stable temperature sensor readings during multiple cycles.
  10. If fault persists and wiring and seat components check good, consult manufacturer wiring diagrams and consider replacement or reprogramming of the seat control module or BCM as a last resort.

Likely causes

  • Damaged wiring harness under the left seat (pinch, chafe, corrosion)
  • Heater element shorted to seat frame/chassis
  • Loose or corroded connector at seat heater module or switch
  • Blown fuse or failed relay supplying the left seat heater
  • Faulty temperature sensor in the left seat cushion/backrest

Fault status

⚠️ Status
Left seat heater circuit fault detected — possible short to ground, loss of power, or invalid temperature sensor reading. System may disable left seat heating until fault is resolved.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.5 hours

Similar codes

HTML Workshop Manuals AI manual library for LAND ROVER Click to show available manuals 1

LAND ROVER 2015 Discovery Sport HSE

HTML Manual
Discovery Sport HSE Years: 2015 Manual in English Sections: 61,541 AI chunks: 61,541
Short description
LAND ROVER · Discovery Sport HSE · 2015
Workshop Manuals

Repair manuals for LAND ROVER

3

Land Rover Defender 300Tdi — Workshop Manual (1996 model year)

Workshop Manual
Defender 300Tdi Years: 1996 Manual in English 7.5 MB
Short description

Official workshop manual for the Land Rover Defender 300Tdi (from 1996 model year). Contains specifications, adjustment, fault diagnosis and step-by-step repair and overhaul procedures for engine, transmission, axles, suspension, brakes, electrical and body. Intended for dealer workshops and trained technicians.

199,00 UAH
Contents
Key sections:
  • 01 INTRODUCTION
  • 04 GENERAL SPECIFICATION DATA
  • 05 ENGINE TUNING DATA
  • 07 GENERAL FITTING REMINDERS
  • 09 LUBRICANTS, FLUIDS AND CAPACITIES
  • 10 MAINTENANCE
  • 12 ENGINE Tdi
  • - Description and operation
  • - Fault diagnosis
  • - Adjustment
  • - Repair and overhaul procedures
  • 19 FUEL SYSTEM Tdi
Buy

Land Rover Defender Workshop Manual Supplement & Body Repair Manual (1999 & 2002 MY)

Workshop Manual
Defender Years: 1999–2002 Manual in English 7.6 MB
Short description

Workshop Manual Supplement and Body Repair Manual for the Land Rover Defender. Includes general specifications, maintenance schedules, tuning data and step‑by‑step repair procedures for engine, transmission, suspension, brakes, electrical and body repairs. Covers Defender models from 1999 and 2002 model years.

199,00 UAH
Contents
Key sections:
  • 01 - INTRODUCTION
  • - Introduction
  • - Dimensions
  • - References
  • - Repairs and replacements
  • - Poisonous substances
  • - Fuel handling precautions
  • - Synthetic rubber
  • - Recommended sealants
  • - Used engine oil precautions
  • - Accessories and conversions
  • - Wheels and tyres
Buy

Land Rover Range Rover — Electrical Library (LRL 0453ENG, 2002)

Workshop Manual
Manual in English Pages: 494 7.1 MB
Short description

Land Rover Range Rover Electrical Library (LRL 0453ENG). Comprehensive manual covering fuse details, earth points, system descriptions, diagnostics and connector pin-outs for electrical troubleshooting and repair. Intended for technicians and service workshops.

199,00 UAH
Contents
Key sections:
  • 1 INTRODUCTION
  • 1.1 About this document
  • 1.2 Battery voltage
  • 1.3 Electrical precautions
  • 1.4 Battery disconnecting / charging
  • 1.5 Disciplines / greases
  • 1.6 Abbreviations
  • 1.7 HeVAC, sensors abbreviations
  • 1.8 How to use this document
  • 1.9 Connector detail format
  • 1.10 Fault diagnosis
  • 1.11 Wire colour codes
Buy
Your experience will help others
+100 karma for a short comment :)
Send to email