C1722: Air Suspension Height Sensor Power Circuit Short To Battery
MediumChassisSuspension
What does C1722 mean?
C1722 is a diagnostic trouble code indicating "Air Suspension Height Sensor Power Circuit Short To Battery". The ECU is detecting a voltage reading that is below the expected range in the suspension circuit. This typically points to a wiring short, a faulty sensor, or a grounding issue.
Symptoms you may notice
- Check engine light (MIL) illuminated on dashboard
- Intermittent warning lights
- Erratic gauge readings
Estimated repair cost
Typical range in Australia (parts + labour)
$100 – $500 AUD
Common causes
- Damaged or corroded wiring harness
- Loose or disconnected electrical connector
- Failed suspension sensor or actuator
- Blown fuse in the related circuit
- Poor ground connection
What should you do?
This code sits in the suspension or ride height control. Handling and ride quality can change, especially on air suspension where the car may sag or refuse to raise. Get it diagnosed before loading the car up or towing.
Get a diagnosis for YOUR car
Code C1722 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.