C1A23 on 2017-2025 Land Rover Discovery — Manufacturer-Specific Chassis Fault
1 vehicles · 1 makes · $300-$800 repair
How to diagnose and fix C1A23: most-reported vehicles
Ranked by owner reports. Each card gives the symptoms, how to confirm the cause, the fix, parts and sources for that vehicle.
Land Rover Discovery · 2017–2025
The current-generation L462 Discovery continues the air suspension tradition with its own set of issues. The ride height sensors are particularly prone to failure, giving incorrect height readings that cause the vehicle to sit at uneven heights. The sensors are located at each corner and exposed to road debris. Failure of one sensor affects the entire system's ability to level the vehicle.
Common Symptoms
- Vehicle sitting at different heights side to side
- Suspension fault warning
- Ride height adjustment not working
- Vehicle leans to one side
- Harsh ride quality
How to Fix
Replace the faulty ride height sensor(s). These are accessible at each wheel without lifting the vehicle significantly. Recalibrate the air suspension system using JLR Pathfinder diagnostics after sensor replacement.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- LR033256 genuine front ride-height sensorOEMLR033256
Replace a diagnosed front sensor on the early-VIN branch Fitment/availability: Discovery 5 L462 all models through VIN HA999999, Solihull built, front left or right; two per vehicle. Fitment/availability: Usually in supplier stock; £135.…
- LR033257 genuine rear ride-height sensorOEMLR033257
Replace a diagnosed rear sensor on the early-VIN branch Fitment/availability: Discovery 5 L462 all models through VIN HA999999, Solihull built, rear left or right; two per vehicle. Fitment/availability: Usually in supplier stock; £155.90…
- LR098914 genuine front ride-height sensorOEMLR098914
Replace a diagnosed front sensor on the later-VIN branch Fitment/availability: Discovery 5 L462 all models from VIN JA000001, Solihull built, front left or right; two per vehicle. Fitment/availability: Usually in supplier stock; £153.59 …
- LR098915 genuine rear ride-height sensorOEMLR098915
Replace a diagnosed rear sensor on the later-VIN branch Fitment/availability: Discovery 5 L462 from VIN JA000001, rear left or right; confirm VIN and current supersession before ordering.
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Owner tips & cautions
- TipThe height sensor links are cheap plastic and break easily. Keep a spare in the glovebox — a broken link gives the same symptoms as a bad sensor.
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C1A23 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does C1A23 mean?
C1A23 stands for "Manufacturer-Specific Chassis Fault." C1A23 is a manufacturer-specific chassis code (in the Nissan/Infiniti C1Axx family) whose exact definition is not well documented in public references. Codes in this range typically relate to driver-assistance/radar systems or ride-height/suspension sensing. In general it indicates the module detected a fault with a connected sensor or circuit in one of these chassis subsystems. The specific component and cause should be confirmed using the factory service manual or a brand-specific diagnostic tool rather than assumed.
What are the most common causes of C1A23?
The most common causes of C1A23 are: Faulty sensor in the affected chassis/driver-assist subsystem, Damaged wiring or connectors, Sensor blockage, misalignment, or needed calibration, Corrosion or water intrusion at connectors, Low system voltage or poor ground, Related control module fault. The specific cause varies by vehicle.
How much does it cost to fix C1A23?
Repair costs for C1A23 range from $300 to $800, depending on the vehicle and root cause.
Which vehicles are affected by C1A23?
Au7o has documented C1A23 across 1 vehicle models from 1 manufacturers: Land Rover.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.