C1A03

Code

LAND ROVER C — Chassis

Left height front sensor

Brand: LAND ROVER

Type: C — Chassis

Views: UK: 16 EN: 55 RU: 19

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Page language: EN

Causes

Faulty left front height sensor (internal failure)
Open, short or high resistance in sensor wiring or connector
Corroded or loose connector/pins at sensor or module
Sensor linkage seized, bent, or disconnected (mechanical)
Loss of reference power or ground to the sensor
Faulty suspension control module or software/calibration issue

Symptoms

Suspension leveling warning lamp or message on dash
Vehicle may sit at incorrect ride height on one corner
Uneven ride, poor handling or reduced suspension performance
Automatic leveling may not function or will attempt frequent adjustments
Fault memory stored; possible limp or restricted suspension modes

What to check

Read codes and freeze frame data with a capable diagnostic tool (vehicle-specific module)
Check live data/height sensor values and compare left front to right front
Visual inspection of left front sensor, linkage, mounting and wiring for damage or corrosion
Inspect and reseat connectors; look for bent pins or water ingress
Backprobe sensor connector and measure reference voltage, signal voltage and ground integrity
Perform wiggle test on wiring while monitoring live data for intermittent faults

Signal parameters

Sensor type varies by model; many use a 5 V reference, ground and analog signal
Typical analog signal range approximately 0.5–4.5 V (vehicle-specific — consult service data)
At static normal ride height the signal often sits near midscale (approx. 2–3 V)
Expected continuity: reference supply to sensor ≈ 5 V with ignition ON; good ground to chassis
Resistance/impedance can vary by sensor type — check OEM specification before replacing

Diagnostic algorithm

Retrieve and record fault code(s), freeze frame and live data using a factory-level scan tool.
Visually inspect left front height sensor, linkage and harness for damage, corrosion or disconnection. Repair obvious mechanical faults.
Backprobe the sensor connector with ignition ON (engine off) and verify reference voltage, signal voltage and ground. Compare values to right front sensor and to OEM specs.
Wiggle the wiring and connector while observing live data to identify intermittent opens/shorts.
If signal is open/short/incorrect, check continuity between sensor pins and the suspension control module connector; repair any wiring faults.
If wiring and power/ground are correct but signal is out of range, replace the left front height sensor.
After repair or replacement, clear codes and perform any required sensor recalibration/level system relearn using a diagnostic tool per factory procedure.
Road test and monitor live sensor values to confirm correct operation and that the code does not return.
If fault persists with correct sensor and wiring, investigate suspension control module, CAN communications and perform module reflash or replacement as directed by manufacturer procedures.

Likely causes

Wiring damage at wheel arch or strut where harness flexes
Corroded multi‑pin connector at sensor
Sensor position arm detached or binding
Water intrusion into sensor or connector
Failed sensor after exposure to road debris/impact

Fault status

⚠️ Status

Left front ride/height sensor - signal missing, out of range, or circuit fault detected by suspension/level control module.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 0.5-2.0 hours

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