What Does C1760 Mean?
The rear air suspension height sensor high-range (SE) signal circuit has a general failure. The air suspension module cannot read the rear ride height from this sensor. Without valid rear height data, the system cannot properly level the rear of the vehicle or adjust for load changes.
Common Causes
35%
Failed rear height sensor with worn internal potentiometer
25%
Damaged wiring between the rear height sensor and the suspension module
20%
Corroded sensor connector at the rear axle/suspension
15%
Broken or detached sensor linkage arm at the rear axle
5%
Air suspension control module fault
Diagnostic Steps
1
Step 1: Inspect the rear height sensor and linkage — verify the link arm is connected and moves freely with suspension travel.
2
Step 2: Check the sensor connector for corrosion, moisture, and secure pin engagement.
3
Step 3: Measure 5V reference and ground at the sensor connector with a DVOM — confirm proper supply.
4
Step 4: Backprobe the signal wire and cycle the sensor arm manually — voltage should sweep smoothly from 0.5V to 4.5V.
5
Step 5: Replace the rear height sensor if faulty, clear codes, and run the suspension calibration routine.
Estimated Repair Cost
$200 - $600
Parts + labor, varies by vehicle and location
The rear air suspension height sensor high-range (SE) signal circuit has a general failure. The air suspension module cannot read the rear ride height from this sensor. Without valid rear height data, the system cannot properly level the rear of the vehicle or adjust for load changes.
The most common cause of C1760 (Air Suspension Rear Height Sensor High (SE) Signal Circuit Failure) is: Failed rear height sensor with worn internal potentiometer
Typical repair costs for C1760 range from $200 to $600, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Rear suspension cannot auto-level. Vehicle may sag under load or ride at incorrect height. Drivable but handling and stability may be affected — repair soon.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to C1760 to identify the root cause.
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Quick Info
Category
Chassis
System
Air Suspension System
Difficulty
Type
Manufacturer
Recommended Tools
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