Code
C1719
LAND ROVER
C — Chassis
Left central sensor - circuit failure
Views:
UK: 10
EN: 11
RU: 15
AI status
Completed
Completed
100%
Causes
- Damaged or disconnected sensor connector
- Corroded terminals or water ingress at connector
- Broken or shorted wiring between sensor and control module
- Failed left central sensor
- Poor or missing ground or supply voltage to the sensor
- Faulty control module (less common)
Symptoms
- Chassis/ABS/ESC warning lamp illuminated
- Suspension/ride-height warning (on vehicles with electronic suspension)
- Reduced or altered stability/traction control operation
- Stored fault code C1719 and possible related codes
- Intermittent system faults that can change with vehicle motion or temperature
What to check
- Scan vehicle and record stored codes, freeze frame and readiness status
- Visually inspect left central sensor, mounting and connector for damage or contamination
- Check connectors for corrosion, bent pins, and secure locking
- Wiggle test wiring harness while monitoring live data or the fault code
- Measure supply voltage and ground at the sensor connector with ignition on
- Check continuity/resistance between sensor connector and module connector
Signal parameters
- Sensor output typically a variable analog voltage or digital CAN/PWM signal depending on sensor type
- Typical analog sensor range: 0–5 V (verify factory specification for exact range)
- Expected continuity: low ohms between sensor ground and chassis ground; open circuit indicates break
- No short to battery voltage or chassis ground when sensor is disconnected
- Diagnostic scanner should show live sensor data or message presence when system is active
Diagnostic algorithm
- Read and record C1719 and any related codes with a diagnostic scanner. Note freeze frame data.
- Visually inspect the left central sensor and wiring for obvious damage, corrosion or water entry.
- With ignition ON, back-probe the sensor connector: verify reference supply voltage and ground are present (compare to spec) and note sensor output voltage or CAN message activity.
- Perform a wiggle test on the wiring and connector while watching live data or monitoring for code recreation to identify intermittent faults.
- If supply or ground is missing, trace wiring back to fuse/relay and control module; repair broken wires, corrosion, or bad grounds.
- If wiring and power are good but signal is abnormal or absent, disconnect sensor and check for short to ground or battery on the signal line (use multimeter).
- If possible, swap with a known good identical sensor (or use a bench test) to confirm sensor failure.
- Repair or replace faulty wiring/connectors or replace the sensor. Replace fuses/relays if found blown.
- Clear codes and road-test. Verify the system returns to normal and code does not reappear. Perform any required calibration or relearn procedures per manufacturer instructions.
Likely causes
- Connector contaminated with moisture causing intermittent contact
- Wiring abrasion where loom rubs against body/chassis leading to short to ground
- Sensor housing cracked from impact or age, altering output
- Aftermarket work disturbed wiring or connectors
- Fuse related to sensor supply is blown
Fault status
Status
Left central sensor circuit fault detected — signal out of range, open or intermittent. Check sensor, connector and wiring to restore proper signal.
Repair difficulty: Medium
Diagnostic time: 0.5-1.5 hours
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