B1863

Code

LAND ROVER B — Body

Sensor land - open circuit

Brand: LAND ROVER

Type: B — Body

Views: UK: 12 EN: 25 RU: 23

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Page language: EN

Causes

Broken or chafed wiring harness to the sensor
Disconnected, corroded, bent or damaged connector pins
Faulty sensor internal open circuit
Poor or missing ground/reference supply to the sensor
Intermittent connection due to water ingress or connector contamination
Faulty control module or module input circuit (less common)

Symptoms

Relevant system warning lamp illuminated (e.g., SRS/airbag or system-specific lamp)
Disabled or degraded function of the subsystem controlled by the sensor
Stored fault code and possible freeze-frame data
Intermittent faults or faults that return after clearing

What to check

Verify the exact code and any additional related DTCs with a suitable scan tool
Visual inspection of sensor, connector, and wiring for damage, corrosion, or water entry
Wiggle-test harness and connector while monitoring the DTC or live data for changes
Backprobe connector and measure reference, signal and ground voltages with key ON (engine OFF) per factory values
Perform continuity and resistance checks between sensor terminals and the control module connector
Inspect grounds and chassis bonding points related to the circuit

Signal parameters

Open-circuit indication: infinite resistance (OL) between sensor signal and module
No measurable sensor signal on oscilloscope or scan-tool live data when circuit open
Typical sensor reference voltage is vehicle-dependent (commonly ~5 V or switched supply) — consult factory data
Expected signal voltage/resistance range varies by sensor type; refer to manufacturer specifications for exact values

Diagnostic algorithm

Read and record all DTCs and freeze-frame data. Note any related codes.
Attempt to clear the code and perform a functional test or reproduce the condition to see if code returns.
Visually inspect the sensor, connector and wiring harness for obvious damage, corrosion, or water ingress.
With ignition ON (engine OFF) backprobe the connector: verify sensor reference supply and ground are present and within factory tolerance.
Measure continuity/resistance between sensor pins and the destination connector at the control module; repair any open circuits.
If supply and ground are good but signal is open/infinite resistance, disconnect sensor and measure its resistance per service manual to confirm internal open.
Repair or replace damaged wiring, pins or connectors. Protect and reseal connectors if corrosion/water ingress found.
If sensor and wiring check good, test/replace the control module input or consult manufacturer technical service if module diagnostics indicate internal fault.
After repairs, clear codes, perform required relearn/calibration procedures for the system, and confirm the code does not return during test drive.

Likely causes

Damaged wiring or connector between sensor and module
Corroded or pushed-out connector pins
Failed sensor element (internal open)
Faulty ground or reference supply to the sensor

Fault status

⚠️ Status

Sensor circuit open (no continuity) detected — check wiring, connector and sensor.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 0.5 - 2.0 hours

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Repair manuals

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

LAND ROVER

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