C1724 – OBD-II DTC

OBD-II DTC C1724 – Air Suspension Height Sensor Power Circuit Failure

DTC C1724 meaning

DTC C1724 refers to a fault in the air suspension height sensor power circuit. This diagnostic trouble code indicates that the power supply to the height sensor, which is responsible for measuring the vehicle’s ride height, is malfunctioning. The air suspension system relies on accurate height measurements to adjust the suspension for optimal performance and comfort.

DTC C1724 symptoms

Common symptoms associated with DTC C1724 may include:

• Warning lights on the dashboard, such as the air suspension warning light.
• Inconsistent or incorrect ride height adjustments.
• Unusual noises from the air suspension system.
• Vehicle sagging or sitting unevenly.
• Reduced ride quality or handling issues.

DTC C1724 causes

Several factors can lead to the occurrence of DTC C1724, including:

• Faulty height sensor or wiring issues.
• Corroded or damaged connectors in the power circuit.
• Blown fuses related to the air suspension system.
• Short circuits or open circuits in the wiring harness.
• Malfunctioning air suspension control module.

DTC C1724 seriousness

DTC C1724 is considered a moderate to serious issue. If left unaddressed, it can lead to:

• Increased wear and tear on suspension components.
• Potential safety hazards due to improper vehicle handling.
• Further damage to the air suspension system.
• Inability to maintain proper ride height, affecting vehicle stability.

How to diagnose DTC C1724

To diagnose DTC C1724, follow these steps:

1. Use an OBD-II scanner to confirm the presence of DTC C1724.
2. Inspect the air suspension height sensor and its wiring for visible damage.
3. Check the power supply to the height sensor using a multimeter.
4. Examine the connectors for corrosion or loose connections.
5. Test the height sensor for proper operation according to manufacturer specifications.
6. Inspect related fuses and replace any that are blown.
7. Clear the DTC and perform a road test to see if the code reappears.

How to fix DTC C1724 step-by-step instructions

To fix DTC C1724, follow these steps:

1. Identify and repair any damaged wiring or connectors associated with the height sensor.
2. Replace the height sensor if it is found to be faulty.
3. Replace any blown fuses related to the air suspension system.
4. Ensure all connections are secure and free of corrosion.
5. Test the air suspension system to confirm proper operation.
6. Clear the DTC using an OBD-II scanner.
7. Perform a road test to ensure the issue is resolved and the code does not return.

How to erase DTC C1724

To erase DTC C1724, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn the ignition key to the “On” position without starting the engine.
3. Access the scanner’s menu and select the option to clear or erase trouble codes.
4. Confirm the action and wait for the scanner to complete the process.
5. Disconnect the scanner and turn off the ignition.
6. Start the vehicle and monitor for any reoccurrence of the DTC.

Recommended tools for OBD-II diagnostics

Explore our expert picks: The Best OBD2 Scanners for 2025

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.