C1760 on 2007-2017 Lexus LS (LS460, LS460L, LS600h, LS600hL) — Air Suspension Rear Height Sensor Signal Circuit Failure
1 vehicles · 1 makes · $1,500-$5,000 repair
How to diagnose and fix C1760: 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.
Lexus LS · 2007–2017
The pneumatic air suspension system on the LS460 and LS600h develops leaks in the air springs, causing the vehicle to sag overnight or drop on one corner. The air compressor runs excessively to compensate for leaks and eventually burns out. Complete air suspension failure leaves the car sitting on the bump stops.
Common Symptoms
- Vehicle sags on one corner overnight
- Compressor runs constantly or excessively
- Suspension warning light on dashboard
- Rough ride quality with bottoming out
- Vehicle sits noticeably lower than normal
How to Fix
Replace failed air struts with new OEM or aftermarket units from Arnott or Suncore. Replace the compressor if it no longer maintains pressure. For a permanent fix, some owners convert to conventional coilover suspension using kits from Strutmasters or BC Racing, which eliminates future air suspension issues.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Arnott P-3188 OES air-suspension compressorOEMP-3188
Replace a test-confirmed failed compressor only after repairing system leaks Fitment/availability: Live in-stock Add to Cart page identifies P-3188 and lists 2007-2017 LS460 RWD/AWD fitments; Arnott's application manual adds 2008-2016 LS…
- Arnott AS-2855 front air strutOEMAS-2855
Replace a confirmed leaking or failed front air strut on the RWD LS460 branch Fitment/availability: Live in-stock Add to Cart page identifies AS-2855 and front 2007-2017 LS460 RWD fitment for USF40 short- and USF41 long-wheelbase applica…
- Arnott AS-2856 rear air strutOEMAS-2856 / retailer 75-23697-AI
Replace a confirmed leaking or failed rear air strut on the earlier AVS-equipped branch Fitment/availability: Live low-inventory Add to Cart page identifies Arnott AS-2856; Arnott's catalog specifies rear left or right for 2007-2012 LS46…
- Arnott C-3418 complete air-to-coil conversion kitOEMC-3418
Provide a disclosed full-system passive conversion option for the exact RWD LS460 branch Fitment/availability: Live Add to Cart page identifies C-3418, 2007-2017 LS460 XF40 RWD only, all-new OE-equivalent struts and electronic bypass mod…
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C1760 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 C1760 mean?
C1760 stands for "Air Suspension Rear Height Sensor Signal Circuit Failure." C1760 is a manufacturer-specific chassis code indicating the suspension control module detected an invalid signal from the rear ride-height sensor on an air-suspension-equipped vehicle. The height sensor reports the vehicle's rear ride height so the system can level the vehicle and adjust the air springs. When this signal is faulty or out of range, automatic leveling is disabled and the suspension warning light comes on, sometimes with the vehicle sitting low or unevenly. Confirm against the factory manual since the definition varies by maker.
What are the most common causes of C1760?
The most common causes of C1760 are: Faulty rear ride-height sensor, Damaged sensor linkage or mounting, Damaged or corroded wiring/connector, Water intrusion at the sensor connector, Air suspension leak affecting leveling feedback, Suspension/air ride control module fault. The specific cause varies by vehicle.
How much does it cost to fix C1760?
Repair costs for C1760 range from $1,500 to $5,000, depending on the vehicle and root cause.
Which vehicles are affected by C1760?
Au7o has documented C1760 across 1 vehicle models from 1 manufacturers: Lexus.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.